Source: AGRICOLA database (1970-1996)

Anderson, R. S., J. L. Betancourt, et al. (2000). Middle- and late-Wisconsin paleobotanic and paleoclimatic records from the southern Colorado Plateau, USA. Palaeogeography Palaeoclimatology Palaeoecology. Jan. 155(1-2): 31-57. {a} Center for Environmental Sciences and Education, and Quaternary Studies Program, Northern Arizona University, Flagstaff, AZ, 86011, USA

Brown, P. M., M. G. Ryan, et al. (2000). Historical surface fire frequency in ponderosa pine stands in Research Natural Areas, Central Rocky Mountains and Black Hills, USA. Natural Areas Journal. April 20(2): 133-139. {a} Rocky Mountain Tree-Ring Research, Inc., 2901 Moore Lane, Fort Collins, CO, 80526, USA

Busse, M. D., S. A. Simon, et al. (2000). Tree-growth and understory responses to low-severity prescribed burning in thinned Pinus ponderosa forests of central Oregon. Forest Science. [print] May 46(2): 258-268. {a} Pacific Southwest Research Station, USDA Forest Service, 2400 Washington Ave., Redding, CA, 96001, USA

Callaway, R. M., A. Sala, et al. (2000). Succession may maintain high leaf area: Sapwood ratios and productivity in old subalpine forests. Ecosystems . [print] May Jun 3(3): 254-268. {a} Division of Biological Sciences, University of Montana, Missoula, MT, 59812, USA

Chen, C. R., L. M. Condron, et al. (2000). Effects of afforestation on phosphorus dynamics and biological properties in a New Zealand grassland soil. Plant and Soil. [print] 220(1-2): 151-163. {a} Soil, Plant and Ecological Sciences Division, Lincoln University, Canterbury, New Zealand

Cochran, P. H. and W. G. Dahms (2000). Growth of lodgepole pine thinned to various densities on two sites with differing productivities in central Oregon. U S Forest Service Research Paper PNW. [print] April 520: 1-59. {a} Forest Service, Pacific Northwest Research Station, U.S. Department of Agriculture, Portland, OR, USA

Cregg, B. M., G. J. M. Olivas, et al. (2000). Provenance variation in carbon isotope discrimination of mature ponderosa pine trees at two locations in the Great Plains. Canadian Journal of Forest Research. [print] March 30(3): 428-439. {a} Department of Horticulture, Michigan State University, East Lansing, MI, 48824-1325, USA

Dahlstrom, J. L., J. E. Smith, et al. (2000). Mycorrhiza-like interaction by Morchella with species of the Pinaceae in pure culture synthesis. Mycorrhiza . Feb. 9(5): 279-285. {a} Pacific Northwest Research Station, Forestry Sciences Laboratory, US Department of Agriculture, Forest Service, 3200 SW Jefferson Way, Corvallis, OR, 97331, USA

Everett, R. L., R. Schellhaas, et al. (2000). Fire history in the ponderosa pine/Douglas-fir forests on the east slope of the Washington Cascades. Forest Ecology and Management. April 129(1-3): 207-225. {a} USDA Forestry Sciences Laboratory and USDA Forest Service, 1133 N. Western Avenue, Wenatchee, WA, 98801, USA

Garrison, M. T., J. A. Moore, et al. (2000). Foliar nutrient and tree growth response of mixed-conifer stands to three fertilization treatments in northeast Oregon and north central Washington. Forest Ecology and Management. [print] 132(2-3): 183-198. {a} Intermountain Forest Tree Nutrition Cooperative, Forest Resources Department, University of Idaho, Moscow, ID, 83844-1133, USA

Gill, S. J., G. S. Biging, et al. (2000). Modeling conifer tree crown radius and estimating canopy cover. Forest Ecology and Management. Feb. 126(3): 405-416. {a} Natural Resources Management Department, California Polytechnic State University, San Luis Obispo, CA, 93407, USA

Johnson, M. G., D. L. Phillips, et al. (2000). Effects of elevated CO2, N-fertilization, and season on survival of ponderosa pine fine roots. Canadian Journal of Forest Research. [print] Feb 30(2): 220-228. {a} National Health and Environmental Effects Laboratory, Western Ecology Division, U.S. Environmental Protection Agency, Corvallis, OR, 97333, USA

Kaufmann, M. R., C. M. Regan, et al. (2000). Heterogeneity in ponderosa pine/Douglas-fir forests: Age and size structure in unlogged and logged landscapes of central Colorado. Canadian Journal of Forest Research. [print] May 30(5): 698-711. {a} Rocky Mountain Research Station, USDA Forest Service, 240 West Prospect Road, Fort Collins, CO, 80526, USA

Khan, S. R., R. Rose, et al. (2000). Effects of shade on morphology, chlorophyll concentration, and chlorophyll fluorescence of four Pacific Northwest conifer species. New Forests. March 19(2): 171-186. {a} Department of Forest Science, Oregon State University, Corvallis, OR, 97331, USA

Latta, R. G., Y. B. Linhart, et al. (2000). Patterns of monoterpene variation within individual trees in ponderosa pine. Journal of Chemical Ecology. [print] June 26(6): 1341-1357. {a} Department of Environmental, Population and Organismic Biology, University of Colorado, Boulder, CO, 80309-0334, USA

Lundquist, J. E. (2000). A method of estimating direct and indirect effects of Armillaria root disease and other small-scale forest disturbances on canopy gap size. Forest Science. [print] August 46(3): 356-362. {a} Rocky Mountain Research Station, USDA Forest Service, 240 W. Prospect Rd, Fort Collins, CO, 80526, USA

Lundquist, J. E. and J. F. Negron (2000). Endemic forest disturbances and stand structure of ponderosa pine (Pinus ponderosa) in the upper pine creek research natural area, South Dakota, USA. Natural Areas Journal. April 20(2): 126-132. {a} Rocky Mountain Research Station, USDA Forest Service, 240 W. Prospect Road, Fort Collins, CO, 80526, USA

Maherali, H. and E. H. DeLucia (2000). Xylem conductivity and vulnerability to cavitation of ponderosa pine growing in contrasting climates. Tree Physiology. [print] July 20(13): 859-867. {a} Department of Botany, Duke University, Phytotron Building, Durham, NC, 27708-0340, USA

Maherali, H. and E. H. DeLucia (2000). Interactive effects of elevated CO2 and temperature on water transport in ponderosa pine. American Journal of Botany. Feb. 87(2): 243-249. {a} Department of Plant Biology, University of Illinois at Urbana-Champaign, 505 South Goodwin Avenue, 265 Morrill Hall, Urbana, IL, 61801, USA

Mills, T. R., M. A. Rumble, et al. (2000). Habitat of birds in ponderosa pine and aspen/birch forest in the Black Hills, South Dakota. Journal of Field Ornithology. [print] Spring 71(2): 187-206. {a} U.S. Department of Agriculture Forest Service, Black Hills National Forest, Cluster, SD, 57730-9504, USA

Newland, J. A. and T. H. DeLuca (2000). Influence of fire on native nitrogen-fixing plants and soil nitrogen status in ponderosa pine - Douglas-fir forests in western Montana. Canadian Journal of Forest Research. [print] Feb 30(2): 274-282. {a} School of Forestry, University of Montana, Missoula, MT, 59812, USA

Powell, J., B. Kennedy, et al. (2000). Mathematical elements of attack risk analysis for mountain pine beetles. Journal of Theoretical Biology. [print] 204(4): 601-620. {a} Department of Mathematics and Statistics, Utah State University, Logan, UT, 84322-3900, USA

Roth, L. F., C. G. Shaw, III, et al. (2000). Inoculum reduction measures to control Armillaria root disease in a severely infested stand of ponderosa pine in south-central Washington: 20 year results. Western Journal of Applied Forestry. April 15(2): 92-100. {a} Pacific Northwest Research Station, Forestry Sciences Laboratory, USDA Forest Service, Juneau, AK, 99801, USA

Swanson, D. L., J. S. Palmer, et al. (2000). A breeding population of Virginia's warblers in the southwestern Black Hills of South Dakota. Southwestern Naturalist. March 45(1): 39-44. {a} Department of Biology, University of South Dakota, Vermillion, SD, 57069, USA

Tiedemann, A. R., J. O. Klemmedson, et al. (2000). Solution of forest health problems with prescribed fire: Are forest productivity and wildlife at risk? Forest Ecology and Management. March 127(1-3): 1-18. {a} Pacific Northwest Research Station, 1401 Gekeler Lane, LaGrande, OR, 97850, USA

Tiedemann, A. R., J. O. Klemmedson, et al. (2000). Solution of forest health problems with prescribed fire: Are forest productivity and wildlife at risk? Forest Ecology and Management. March 127(1-3): 1-18. {a} Pacific Northwest Research Station, 1401 Gekeler Lane, LaGrande, OR, 97850, USA

Veblen, T. T., T. Kitzberger, et al. (2000). Climatic and human influences on fire regimes in ponderosa pine forests in the Colorado Front Range. Ecological Applications. [print] August 10(4): 1178-1195. {a} Department of Geography, University of Colorado, Boulder, CO, 80301, USA

Walker, R. F., D. W. Johnson, et al. (2000). Growth, nutrition, and water relations of ponderosa pine in a field soil as influenced by long-term exposure to elevated atmospheric CO2. Forest Ecology and Management. [print] 137(1-3): 1-11. {a} Knudtsen Renewable Natural Resource Center, University of Nevada, Reno, NV, 89512, USA

Anderson, R. S., J. Hasbargen, et al. (1999). Late Wisconsin and Holocene subalpine forests of the Markagunt Plateau of Utah, southwestern Colorado Plateau, U.S.A. Arctic Antarctic and Alpine Research. Nov. 31(4): 366-378. {a} Center for Environmental Sciences and Education, Northern Arizona University, Flagstaff, AZ, 86011, USA

Anthoni, P. M., B. E. Law, et al. (1999). Carbon and water vapor exchange of an open-canopied ponderosa pine ecosystem. Agricultural and Forest Meteorology. June 95(3): 151-168. {a} College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR, 97331, USA

Ayers, D. M., D. J. Bedunah, et al. (1999). Antelope bitterbrush and Scouler's willow response to a shelterwood harvest and prescribed burn in western Montana. Western Journal of Applied Forestry. July 14(3): 137-143. {a} School of Forestry, University of Montana, Missoula, MT, 59812, USA

Baird, M., D. Zabowski, et al. (1999). Wildfire effects on carbon and nitrogen in inland coniferous forests. Plant and Soil 209(2): 233-243. {a} College of Forest Resources, University of Washington, Seattle, WA, 98195, USA

Biondi, F. (1999). Comparing tree-ring chronologies and repeated timber inventories as forest monitoring tools. Ecological Applications 9(1): 216-227. {a} Scripps Institution of Oceanography, University of California-San Diego, La Jolla, CA, 92093, USA

Bond, B. J., B. T. Farnsworth, et al. (1999). Foliage physiology and biochemistry in response to light gradients in conifers with varying shade tolerance. Oecologia Berlin. Aug. 120(2): 183-192. {a} Department of Forest Science, Oregon State University, Corvallis, OR, 97331, USA

Brown, P. M., M. R. Kaufmann, et al. (1999). Long-term, landscape patterns of past fire events in a montane ponderosa pine forest of central Colorado. Landscape Ecology. Dec. 14(6): 513-532. {a} Rocky Mountain Tree-Ring Research, Inc., 2901 Moore Ln., Fort Collins, CO, 80526, USA

Brown, P. M. and C. H. Sieg (1999). Historical variability in fire at the ponderosa pine: Northern Great Plains prairie ecotone, southeastern Black Hills, South Dakota. Ecoscience 6(4): 539-547. {a} Rocky Mountain Tree-Ring Research, Inc., 2901 Moore Lane, Fort Collins, CO, 80526, USA

Cochran, P. H. and J. W. Barrett (1999). Thirty-five-year growth of ponderosa pine saplings in response to thinning and understory removal. U S Forest Service Research Paper PNW. July(512): 1-28. {a} University of Idaho, Moscow, ID, 83844, USA

Coffey, K., C. W. Benkman, et al. (1999). The adaptive significance of spines on pine cones. Ecology Washington D C. June 80(4): 1221-1229. {a} Department of Biology, New Mexico State University, Las Cruces, NM, 88003, USA

Filip, G. M., S. A. Fitzgerald, et al. (1999). Precommercial thinning in a ponderosa pine stand affected by Armillaria root disease in central Oregon: 30 years of growth and mortality. Western Journal of Applied Forestry. July 14(3): 144-148. {a} Department of Forest Science, Oregon State University, Richardson Hall, Corvallis, OR, 97331, USA

Ford, S. P., J. P. N. Rosazza, et al. (1999). Abortifacient effects of a unique class of vasoactive lipids from Pinus ponderosa needles. Journal of Animal Science. Aug. 77(8): 2187-2193. {a} Department of Animal Science, Iowa State University, 11 Kildee Hall, Ames, IA, 50011, USA

Ganey, J. L., W. M. Block, et al. (1999). Mexican spotted owl home range and habitat use in pine-oak forest: Implications for forest management. Forest Science. Feb. 45(1): 127-135. {a} Rocky Mountain Research Station, USDA Forest Service, 2500 S. Pine Knoll, Flagstaff, AZ, 86001, USA

Gardner, D. R. and L. F. James (1999). Pine needle abortion in cattle: Analysis of isocupressic acid in North American gymnosperms. Phytochemical Analysis. May June 10(3): 132-136. {a} Poisonous Plant Research Laboratory, USDA-ARS, 1150 E 1400 N, Logan, UT, 84341, USA

Gardner, D. R., L. F. James, et al. (1999). Ponderosa pine and broom snakeweed: Poisonous plants that affect livestock. Journal of Natural Toxins 8(1): 27-34. {a} Poisonous Plant Research Laboratory, USDA/ARS, Logan, UT, 84341, USA

Gedney, D. R., D. L. Azuma, et al. (1999). Western juniper in eastern Oregon. U S Forest Service General Technical Report PNW. Nov. 464: 1-53. {a} Forestry Sciences Laboratory, Portland, OR, 97208-3890, USA

Gerson, E. A. and R. G. Kelsey (1999). Foliar storage and extraction methods for quantitative analysis of piperidine alkaloids from ponderosa pine (Pinus ponderosa). Phytochemical Analysis. Nov. Dec. 10(6): 322-327. {a} PNW Research Station, USDA Forest Service, 3200 SW Jefferson Way, Corvallis, OR, USA

Gerson, E. A. and R. G. Kelsey (1999). Piperidine alkaloids in nitrogen fertilized Pinus ponderosa. Journal of Chemical Ecology. Sept. 25(9): 2027-2039. {a} PNW Research Station, USDA Forest Service, 3200 SW Jefferson Way, Corvallis, OR, 97331, USA

Graham, R. T., A. E. Harvey, et al. (1999). The effects of thinning and similar stand treatments on fire behavior in Western forests. U S Forest Service General Technical Report PNW. Sept.(463): 1-27. {a} Rocky Mountain Research Station, 1221 South Main, Moscow, ID, USA

Grulke, N. E. and L. Balduman (1999). Deciduous conifers: High N deposition and O3 exposure effects on growth and biomass allocation in ponderosa pine. Water Air and Soil Pollution. Nov. 116(1-2): 235-248. {a} Pacific Southwest Research Station, Riverside Fire Laboratory, 4955 Canyon Crest Drive, Riverside, CA, USA

Houpis, J. L. J., P. D. Anderson, et al. (1999). Among-provenance variability of gas exchange and growth in response to long-term elevated CO2 exposure. Water Air and Soil Pollution. Nov. 116(1-2): 403-412. {a} Department of Biological Sciences, Southern Illinois University, Edwardsville, IL, USA

Houpis, J. L. J., H. H. Rogers, et al. (1999). Translocation of carbon-14 in Pinus ponderosa seedlings subjected to long-term sulfur dioxide and water stress. Transactions of the Illinois State Academy of Science 92(3-4): 191-202. {a} Department of Biological Sciences, Southern Illinois University, Edwardsville, IL, 62026, USA

Hubbard, R. M., B. J. Bond, et al. (1999). Evidence that hydraulic conductance limits photosynthesis in old Pinus ponderosa trees. Tree Physiology 19(3): 165-172. {a} USDA Forest Service, Rocky Mountain Research Station and Graduate Degree Program in Ecology, Colorado State University, 240 West Prospect Road, Fort Collins, CO, 80526, USA

Joseph, G. and R. G. Kelsey (1999). Growth of Douglas-fir and ponderosa pine seedlings with foliar applications of methanol and ethanol. Western Journal of Applied Forestry. Oct. 14(4): 183-185. {a} Pacific Northwest Research Station, Forestry Sciences Laboratory, USDA Forest Service, 3200 SW Jefferson, Corvallis, OR, 97331-8550, USA

Kaska, D. D., R. Myllyla, et al. (1999). Auxin transport inhibitors act through ethylene to regulate dichotomous branching of lateral root meristems in pine. New Phytologist. April 142(1): 49-58. {a} Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA, 93106, USA

Kaye, J. P., S. C. Hart, et al. (1999). Water and nutrient outflow following the ecological restoration of a ponderosa pine-bunchgrass ecosystem. Restoration Ecology. Sept. 7(3): 252-261. {a} Department of Forest Sciences, Colorado State University, Fort Collins, CO, USA

Kelley, S. T., J. B. Mitton, et al. (1999). Strong differentiation in mitochondrial DNA of Dendroctonus brevicomis (Coleoptera: Scolytidae) on different subspecies of ponderosa pine. Annals of the Entomological Society of America 92(2): 193-197. {a} Department of E.P.O. Biology, University of Colorado, Boulder, CO, 80309-0334, USA

Kelsey, R. G. and G. Joseph (1999). Ethanol and water in Pseudotsuga menziesii and Pinus ponderosa stumps. Journal of Chemical Ecology. Dec. 25(12): 2779-2792. {a} Forestry Sciences Laboratory, PNW Research Station, 3200 Jefferson Way, Corvallis, OR, USA

Kreisel, K. J. and S. J. Stein (1999). Bird use of burned and unburned coniferous forests during winter. Wilson Bulletin. June 111(2): 243-250. {a} 2802 W. Depot Springs Rd., Spangle, WA, 99031, USA

Lammoglia, M. A., R. A. Bellows, et al. (1999). Effects of feeding beef females supplemental fat during gestation on cold tolerance in newborn calves. Journal of Animal Science. April 77(4): 824-834. {a} Rt. 1, Miles City, MT, USA

Latta, R. G. and J. B. Mitton (1999). Historical separation and present gene flow through a zone of secondary contact in ponderosa pine. Evolution . June 53(3): 769-776. {a} Department of Biology, Dalhousie University, 1355 Oxford Street, Halifax, NS, B3H 4J1, Canada

Law, B. E., D. D. Baldocchi, et al. (1999). Below-canopy and soil CO2 fluxes in a ponderosa pine forest. Agricultural and Forest Meteorology. May 94(3-4): 171-188. {a} Department of Forest Science, Oregon State University, Peavy Hall 154, Corvallis, OR, 97331, USA

Lori, G., M. I. Salerno, et al. (1999). Fusarium species from a forest nursery soil in Western Patagonia and reduction of their population by soil solarization. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz. July 106(4): 363-371. {a} Lab. Fitopatologia, Facultad de Ciencias Agrarias y Forestales, UNLP-CIC, 60 y 119, La Plata, 1900, Buenos Aires, Argentina

Martin, R. S., I. Villanueva, et al. (1999). Nonmethane hydrocarbon, monocarboxylic acid, and low molecular weight aldehyde and ketone emissions from vegetation in central New Mexico. Environmental Science and Technology. July 33(13): 2186-2192. {a} Department of Mineral and Environmental Engineering, New Mexico Institute of Mining and Technology, Socorro, NM, 87801, USA

Massicotte, H. B., L. H. Melville, et al. (1999). Biology of the ectomycorrhizal fungal genus, Rhizopogon: IV. Comparative morphology and anatomy of ectomycorrhizas synthesized between several Rhizopogon species on Ponderosa pine (Pinus ponderosa). New Phytologist. May 142(2): 355-370. {a} College of Science and Management, Faculty of Natural Resources and Environmental Studies, University of Northern British Columbia, 3333 University Way, Prince George, BC, V2N 4Z9, Canada

Massicotte, H. B., R. Molina, et al. (1999). Diversity and host specificity of ectomycorrhizal fungi retrieved from three adjacent forest sites by five host species. Canadian Journal of Botany. [print] Aug 77(8): 1053-1076. {a} College of Science and Management, Faculty of Natural Resources and Environmental Studies, University of Northern British Columbia, 3333 University Way, Prince George, BC, V2N 4Z9, Canada

Mast, J. N., P. Z. Fule, et al. (1999). Restoration of presettlement age structure of an Arizona ponderosa pine forest. Ecological Applications 9(1): 228-239. {a} Department of Geography and Public Planning, Northern Arizona University, Flagstaff, AZ, 86011, USA

Mast, J. N. and T. T. Veblen (1999). Tree spatial patterns and stand development along the pine-grassland ecotone in the Colorado Front Range. Canadian Journal of Forest Research. May 29(5): 575-584. {a} Department of Geography and Public Planning, Northern Arizona University, Flagstaff, AZ, 86011, USA

Mawdsley, J. R. (1999). Redescription and notes on the biology of Amecocerus senilis (Leconte) (Coleoptera: Melyridae: Dasytinae). Journal of the New York Entomological Society. Spring 107(1): 68-72. {a} Department of Entomology, Cornell University, Comstock Hall, Ithaca, NY, 14853, USA

Maze, J. (1999). Studies into abstract properties of individuals. III. A study of factors affecting emergence. International Journal of Plant Sciences. Sept. 160(5): 809-817. {a} Department of Botany, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada

McClelland, B. R. and P. T. McClelland (1999). Pileated woodpecker nest and roost trees in Montana: Links with old-growth and forest "health". Wildlife Society Bulletin. Fall 27(3): 846-857. {a} West Glacier, MT, USA

McDonald, P. M., C. S. Abbott, et al. (1999). Development of a shrub-fern-ponderosa pine community eleven years after site preparation and release. Western Journal of Applied Forestry. Oct. 14(4): 194-199. {a} Pacific Southwest Research Station, 2400 Washington Avenue, Redding, CA, 96001, USA

McDonald, P. M., S. R. Mori, et al. (1999). Effect of competition on genetically improved ponderosa pine seedlings. Canadian Journal of Forest Research. July 29(7): 940-946. {a} Pacific Southwest Research Station, USDA Forest Service, 2400 Washington Avenue, Redding, CA, 96001, USA

Miller, M. E. (1999). Use of historic aerial photography to study vegetation change in the Negrito Creek watershed, southwestern New Mexico. Southwestern Naturalist. June 44(2): 121-137. {a} Department of Geography, University of Colorado, Boulder, CO, 80309-0260, USA

Momen, B., P. D. Anderson, et al. (1999). Temperature dependency of acid-rain effect on photosynthesis of Pinus ponderosa. Forest Ecology and Management 113(2-3): 223-230. {a} Dep. Environ. Sci., Policy, Management, Univ. California, Berkeley, CA 94720, USA

Monserud, R. A. and J. D. Marshall (1999). Allometric crown relations in three northern Idaho conifer species. Canadian Journal of Forest Research. May 29(5): 521-535. {a} Rocky Mountain and Pacific Northwest Research Stations, USDA Forest Service, 1221 SW Yamhill No. 200, Portland, OR, 97205, USA

Morrell, T. E., M. J. Rabe, et al. (1999). Bats captured in two ponderosa pine habitats in north-central Arizona. Southwestern Naturalist. Dec. 44(4): 501-506. {a} Department of Biology, Ball State University, Muncie, IN, 47306, USA

Murphy, S. M. and Y. B. Linhart (1999). Comparative morphology of the gastrointestinal tract in the feeding specialist Sciurus aberti and several generalist congeners. Journal of Mammalogy. Nov. 80(4): 1325-1330. {a} Section of Ecology and Systematics, Cornell University, Corson Hall, Ithaca, NY, 14853, USA

Naumburg, E. and L. E. DeWald (1999). Relationships between Pinus ponderosa forest structure, light characteristics, and understory graminoid species presence and abundance. Forest Ecology and Management. Dec. 124(2-3): 205-215. {a} Nicholas School of the Environment, Duke University, Durham, NC, 27708, USA

Parks, C. G., D. A. Conklin, et al. (1999). Woodpecker use and fall rates of snags created by killing ponderosa pine infected with dwarf mistletoe. U S Forest Service Research Paper PNW. May(515): 1-11. {a} Forestry and Range Sciences Laboratory, Pacific Northwest Research Station, 1401 Gekeler Lane, La Grande, OR, 97850, USA

Peterson, A. G., J. T. Ball, et al. (1999). Quantifying the response of photosynthesis to changes in leaf nitrogen content and leaf mass per area in plants grown under atmospheric CO2 enrichment. Plant Cell and Environment. Sept. 22(9): 1109-1119. {a} Earth and Environmental Sciences, Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9 W, Palisades, NY, 10964, USA

Pipas, M. J. and G. W. Witmer (1999). Evaluation of physical barriers to protect ponderosa pine seedlings from pocket gophers. Western Journal of Applied Forestry. July 14(3): 164-168. {a} USDA Wildlife Services, National Wildlife Research Center, 4101 LaPorte Ave., Fort Collins, CO, 80521-2154, USA

Powers, R. F. and P. E. Reynolds (1999). Ten-year responses of ponderosa pine plantations to repeated vegetation and nutrient control along an environmental gradient. Canadian Journal of Forest Research. July 29(7): 1027-1038. {a} Pacific Southwest Research Station, USDA Forest Service, 2400 Washington Avenue, Redding, CA, 96001, USA

Pushnik, J. C., I. D. Garcia, et al. (1999). Biochemical responses and altered genetic expression patterns in Ponderosa pine (Pinus ponderosa Doug ex P. Laws) grown under elevated CO2. Water Air and Soil Pollution. Nov. 116(1-2): 413-422. {a} Department of Biological Science, California State University, Chico, CA, USA

Rehfeldt, G. E. (1999). Systematics and genetic structure of Washoe pine: Applications in conservation genetics. Silvae Genetica 48(3-4): 167-173. {a} Rocky Mountain Research Station, 1221 S. Main, Moscow, ID, USA

Reid, M. L. (1999). Monogamy in the bark beetle Ips latidens: Ecological correlates of an unusual mating system. Ecological Entomology 24(1): 89-94. {a} Dep. Biol. Sci., Univ. Calgary, Calgary, AB T2N 1N4, Canada

Robertson, P. A. and Y. H. Bowser (1999). Coarse woody debris in mature Pinus ponderosa stands in Colorado. Journal of the Torrey Botanical Society. July Sept 126(3): 255-267. {a} Department of Plant Biology, Southern Illinois University at Carbondale, Carbondale, IL, 62901-6509, USA

Roy, D. G. and J. L. Vankat (1999). Reversal of human-induced vegetation changes in Sequoia National Park, California. Canadian Journal of Forest Research. April 29(4): 399-412. {a} Department of Biology, Department 3AF, New Mexico State University, Las Cruces, NM, 88003, USA

Sanchez, M. G. and M. R. Wagner (1999). Short-term effects of defoliation by sawflies (Hymenoptera: Diprionidae) on above-and below-ground growth of three ponderosa pine genotypes. Environmental Entomology 28(1): 38-43. Sch. Forest., Northern Arizona Univ., Flagstaff, AZ 86011, USA

Soranzo, N., J. Provan, et al. (1999). An example of microsatellite length variation in the mitochondrial genome of conifers. Genome 42(1): 158-161. {a} Department of Cell and Molecular Genetics, Scottish Crop Research Institute, Invergowrie, Dundee, DD2 5DA, UK

Sorensen, F. C. (1999). Relationship between self-fertility, allocation of growth, and inbreeding depression in three coniferous species. Evolution . April 53(2): 417-425. {a} Forest Service, Pacific Northwest Research Station, United States Department of Agriculture, 3200 Jefferson Way, Corvallis, OR, 97331, USA

Stone, J. E., T. E. Kolb, et al. (1999). Effects of restoration thinning on presettlement Pinus ponderosa in northern Arizona. Restoration Ecology. June 7(2): 172-182. {a} School of Forestry, Northern Arizona University, Flagstaff, AZ, 86011-5018, USA

Tausz, M., A. Bytnerowicz, et al. (1999). Pigments and photoprotection in needles of Pinus ponderosa trees with and without symptoms of ozone injury. Phyton Horn. [print] 39(4): 219-224. {a} Institut fuer Pflanzenphysiologie, Universitaet Graz, Schubertstrasse 51, A-8010, Graz, Austria

Tausz, M., A. Bytnerowicz, et al. (1999). Changes in free-radical scavengers describe the susceptibility of Pinus ponderosa to ozone in Southern Californian forests. Water Air and Soil Pollution. Nov. 116(1-2): 249-254. {a} Institut fuer Pflanzenphysiologie, Universitaet Graz, Schubertstrasse 51, A-8010, Graz, Austria

Tissue, D. T., K. L. Griffin, et al. (1999). Photosynthetic adjustment in field-grown ponderosa pine trees after six years of exposure to elevated CO2. Tree Physiology 19(4-5): 221-228. {a} Texas Tech University, Lubbock, TX, 79409-3131, USA

Uresk, D. W., T. A. Benzon, et al. (1999). Characteristics of white-tailed deer fawn beds, Black Hills, South Dakota. Great Basin Naturalist. Oct. 59(4): 348-354. {a} Rocky Mountain Forest Research Station, School of Mines Campus, Rapid City, SD, USA

Verhoeven, A. S., W. W. Adams, III, et al. (1999). The xanthophyll cycle and acclimation of Pinus ponderosa and Malva neglecta to winter stress. Oecologia Berlin. March 118(3): 277-287. {a} Department of Environmental, Population, and Organismic Biology, University of Colorado, Boulder, CO, 80309-0334, USA

Wagner, O. E. (1999). A basis for a unified theory for plant growth and development (and reply). Physiological Chemistry and Physics and Medical NMR. [print] 31(2): 109-129. {a} Wagner Research Laboratory, 2645 Sykes Creek Road, Rogue River, OR, 97537, USA

Weng, C. and S. T. Jackson (1999). Late Glacial and Holocene vegetation history and paleoclimate of the Kaibab Plateau, Arizona. Palaeogeography Palaeoclimatology Palaeoecology. Sept. 153(1-4): 179-201. {a} Department of Botany, University of Wyoming, Laramie, WY, 82070, USA

Williams, M. S., K. L. Cormier, et al. (1999). Evaluation of the Barr & Stroud FP15 and Criterion 400 laser dendrometers for measuring upper stem diameters and heights. Forest Science. Feb. 45(1): 53-61. {a} Multiresource Inventory Technique, Rocky Mountain Research Station, USDA Forest Service, 240 W. Prospect Road, Fort Collins, CO, 80526-2098, USA

Zlatnik, E. J., T. H. DeLuca, et al. (1999). Site productivity and soil conditions on terraced ponderosa pine sites in western Montana. Western Journal of Applied Forestry 14(1): 35-40. {a} School of Forestry, University of Montana, Missoula, MT, 59812, USA

Ansley, J. A. S. and J. J. Battles (1998). Forest composition, structure, and change in an old-growth mixed conifer forest in the northern Sierra Nevada. Journal of the Torrey Botanical Society 125(4): 297-308. {a} Dep. Environ. Sci. Policy Manag., Univ. Calif.-Berkeley, 151 Hilgard Hall, Berkeley, CA 94720-3110, USA

Arbaugh, M. J., P. R. Miller, et al. (1998). Relationships of ozone exposure to pine injury in the Sierra Nevada and San Bernardino Mountains of California, USA. Environmental Pollution 101(2): 291-301. {a} Riverside Fire Lab., Pacific Southwest Res. Station, USDA Forest Service, 4955 Canyon Crest Drive, Riverside CA, USA

Bytnerowicz, A., K. Percy, et al. (1998). Nitric acid vapor effects on forest trees: Deposition and cuticular changes. Chemosphere 36(4-5): 697-702. {a} PSW Res. Stn., USDA Forest Serv., 4955 Canyon Crest Dr., Riverside, CA 92507, USA

Carey, E. V., R. V. Callaway, et al. (1998). Increased photosynthesis offsets costs of allocation to sapwood in an arid environment. Ecology Washington D C 79(7): 2281-2291. {a} Div. Biol. Sci., Univ. Montana, Missoula, MT 59812, USA

Chen, C. W., W. T. Tsai, et al. (1998). A model of air-tree-soil system for ozone impact analysis. Ecological Modelling 111(2-3): 207-222. {a} Systech Engineering, 3180 Crow Canyon Place, Suite 260, San Ramon, CA 94583, USA

Cochran, P. H. (1998). Reduction in growth of pole-sized ponderosa pine related to a pandora moth outbreak in central Oregon. U S Forest Service Research Note PNW(526): 1-14. {a} Univ. Idaho, Moscow, ID 83844, USA

Cochran, P. H. (1998). Examples of mortality and reduced annual increments of white fir induced by drought, insects, and disease at different stand densities. U S Forest Service Research Note PNW(525): 1-19. {a} Univ. Idaho, Moscow, ID 83844, USA

Cochran, P. H. and J. W. Barrett (1998). Thirty-five-year growth of thinned and unthinned ponderosa pine in the Methow Valley of northern Washington. U S Forest Service Research Paper PNW(502): 1-24. {a} Univ. Idaho, Moscow, ID 83844, USA

Condron, L. M. and R. H. Newman (1998). Chemical nature of soil organic matter under grassland and recently established forest. European Journal of Soil Science 49(4): 597-603. {a} Soil Plant Ecol. Sci. Div., PO Box 84, Lincoln Univ., Canterbury

Dellasala, D. A., R. G. Anthony, et al. (1998). Management of bald eagle communal roosts in fire-adapted mixed-conifer forests. Journal of Wildlife Management 62(1): 322-333. {a} World Wildl. Fund, 1250 24th St. NW, Washington, DC 20037, USA

Dobbertin, M. and G. S. Biging (1998). Using the non-parametric classifier CART to model forest tree mortality. Forest Science 44(4): 507-516. {a} Swiss. Fed. Inst. Forest Snow and Landscape Res., WSL Zurcherstr. 111, CH-8903 Birmensdorf, Switzerland

Feeney, S. R., T. E. Kolb, et al. (1998). Influence of thinning and burning restoration treatments on presettlement ponderosa pines at the Gus Pearson Natural Area. Canadian Journal of Forest Research 28(9): 1295-1306. {a} Sch. Forestry, Coll. Ecosystem Sci. Management, Northern Arizona Univ., Flagstaff, AZ 86011-5018, USA

Gardner, D. R., K. E. Panter, et al. (1998). Abortifacient effects of lodgepole pine (Pinus contorta) and common juniper (Juniperus communis) on cattle. Veterinary and Human Toxicology 40(5): 260-263. USDA, ARS, Poisonous Plant Res. Lab., 1150 E 1400 N, Logan, UT 84341, USA

Gerson, E. A. and R. G. Kelsey (1998). Variation of piperidine alkaloids in ponderosa (Pinus ponderosa) and lodgepole pine (P. contorta) foliage from central Oregon. Journal of Chemical Ecology 24(5): 815-827. {a} USDA Forest Serv., PNW Res. Stn., 3200 SW Jefferson Way, Corvallis, OR 97331, USA

Getty, G. M. and M. I. Haverty (1998). Consumption of sound and decayed ponderosa pine and Douglas-fir by Reticulitermes spp. (Isoptera: Rhinotermitidae) from northern California. Journal of Economic Entomology 91(3): 650-654. {a} Forest Products Laboratory, Univ. California, 1301 South 46th Street, Richmond, CA 94804, USA

Griffiths, T. A. E. (1998). 28th Annual North American Symposium on Bat Research (Hot Springs, Arkansas, USA; October 28-31, 1998). Bat Research News 39(4): 156-202. {a} Dep. Biol., Ill. Wesleyan Univ., Bloomington, IL 61702, USA

Grulke, N. E., C. P. Andersen, et al. (1998). Ozone exposure and nitrogen deposition lowers root biomass of ponderosa pine in the San Bernardino Mountains, California. Environmental Pollution 103(1): 63-73. {a} USDA Forest Service, Pacific Southwest Res. Station, 4955 Canyon Crest Drive, Riverside, CA 92507, USA

Harrod, R. J., W. L. Gaines, et al. (1998). Estimating historical snag density in dry forests east of the cascade range. U S Forest Service General Technical Report PNW(428): 1-16. {a} U.S. Dep. Agric., Forest Service, Wenatchee Natl. Forest, Leavenworth Ranger District, Leavenworth, WA 98826, USA

Johnson, D. W., R. B. Thomas, et al. (1998). Effects of carbon dioxide and nitrogen on growth and nitrogen uptake in Ponderosa and Loblolly pine. Journal of Environmental Quality 27(2): 414-425. {a} Desert Res. Inst., P.O. Box 60220, Reno, NV 89506, USA

Joseph, G., R. G. Kelsey, et al. (1998). Hydraulic conductivity in roots of ponderosa pine infected with black-stain (Leptographium wageneri) or annosus (Heterobasidion annosum) root disease. Tree Physiology 18(5): 333-339. {a} Dep. For. Sci., Oreg. State Univ., Corvallis, OR 97331, USA

Kaye, J. P. and S. C. Hart (1998). Ecological restoration alters nitrogen transformations in a ponderosa pine-bunchgrass ecosystem. Ecological Applications 8(4): 1052-1060. {a} Dep. Forest Sci., Colorado State Univ., Fort Collins, CO 80523, USA

Kaye, J. P. and S. C. Hart (1998). Restoration and canopy-type effects on soil respiration in a ponderosa pine-bunchgrass ecosystem. Soil Science Society of America Journal 62(4): 1062-1072. {a} Dep. Forest Sci., Colorado State Univ., Fort Collins, CO 80524, USA

Kelsey, R. G., G. Joseph, et al. (1998). Ethanol synthesis, nitrogen, carbohydrates, and growth in tissues from nitrogen fertilized Pseudotsuga menziesii (Mirb.) Franco and Pinus ponderosa Dougl. ex Laws. seedlings. Trees Berlin 13(2): 103-111. {a} USDA For. Serv., Pacific Northwest Res. Stn., Corvallis, OR 97331, USA

Kelsey, R. G., G. Joseph, et al. (1998). Sapwood and crown symptoms in ponderosa pine infected with black-stain and annosum root disease. Forest Ecology and Management 111(2-3): 181-191. {a} USDA For. Serv., Pac. Northwest Res. Stn., Corvallis, OR 97331, USA

Kim, G. H. and J. J. Morrell (1998). Biological protection against fungal discoloration: Spatial distribution of the bacterial bioprotectant and target fungi on ponderosa pine sapwood. Material und Organismen Berlin 32(1): 17-27. {a} Department of Forest Resources, Korea University, Seoul, South Korea

Kolb, T. E., K. M. Holmberg, et al. (1998). Regulation of ponderosa pine foliar physiology and insect resistance mechanisms by basal area treatments. Tree Physiology 18(6): 375-381. Sch. Forestry, Coll. Ecosyst. Sci. Management, Northern Arizona Univ., Flagstaff, AZ 86011-5018, USA

Latta, R. G., Y. B. Linhart, et al. (1998). Direct and indirect estimates of seed versus pollen movement within a population of ponderosa pine. Evolution 52(1): 61-67. {a} Dep. Biol., McGill Univ., 1205 Avenue Drive Penfield, Montreal, PQ H3A 1B1, Canada

Lewis, J. C. (1998). Creating snags and wildlife trees in commercial forest landscapes. Western Journal of Applied Forestry 13(3): 97-101. {a} Washington Dep. Fish Wildlife, 2108 Grand Blvd., Vancouver, WA 98661, USA

Linder, K. A. and S. H. Anderson (1998). Nesting habitat of Lewis woodpeckers in southeastern Wyoming. Journal of Field Ornithology 69(1): 109-116. Univ. Wyoming, Wyoming Cooperative Fish Wildlife Res. Unit, Box 3166, Laramie, WY 82071, USA

Linkhart, B. D., R. T. Reynolds, et al. (1998). Home range and habitat of breeding flammulated owls in Colorado. Wilson Bulletin 110(3): 342-351. {a} USDA Forest Serv., Rocky Mountain Res. Station, 240 West Prospect, Fort Collins, CO 80526, USA

Litvak, M. E. and R. K. Monson (1998). Patterns of induced and constitutive monoterpene production in conifer needles in relation to insect herbivory. Oecologia Berlin 114(4): 531-540. Dep. Biol. Environ., Population, Organismic, Campus Box 334, Univ. Colorado, Boulder, CO 80309, USA

Logan, B. A., S. C. Grace, et al. (1998). Seasonal differences in xanthophyll cycle characteristics and antioxidants in Mahonia repens growing in different light environments. Oecologia Berlin 116(1-2): 9-17. {a} Dep. Environ. Population Organismic Biol., Univ. Colorado, Boulder, CO 80309-0334, USA

Logan, J. A., B. J. Bentz, et al. (1998). General program for determining instar distributions from headcapsule widths: Example analysis of mountain pine beetle (Coleoptera: Scolytidae) data. Environmental Entomology 27(3): 555-563. Rocky Mountain Res. Station, Logan Forestry Sci. Laboratory, USDA Forest Service, 860 North 1200 East, Logan, UT 84321, USA

Mast, J. N., T. T. Veblen, et al. (1998). Disturbance and climatic influences on age structure of ponderosa pine at the pine/grassland ecotone, Colorado front range. Journal of Biogeography 25(4): 743-755. {a} Dep. Geography Public Planning, Northern Arizona Univ., Flagstaff, AZ 86011, USA

Mathiasen, R. L. (1998). Comparative susceptibility of conifers to larch dwarf mistletoe in the Pacific Northwest. Forest Science 44(4): 559-568. {a} Sch. For., Box 15018, North. Ariz. Univ., Flagstaff, AZ 86011, USA

McMillin, J. D. and M. R. Wagner (1998). Influence of host plant vs. natural enemies on the spatial distribution of a pine sawfly, Neodiprion autumnalis. Ecological Entomology 23(4): 397-408. {a} Dep. Forestry, 253 Bessey Hall, Iowa State Univ., Ames, IA 50011-1021, USA

Melville, L., S. Dickson, et al. (1998). Visualization of mycorrhizal fungal structures in resin embedded tissues with xanthene dyes using laser scanning confocal microscopy. Canadian Journal of Botany 76(1): 174-178. {a} Dep. Botany, Univ. Guelph, Guelph, ON N1G 2W1, Canada

Miller, P., A. Bytnerowicz, et al. (1998). Multidisciplinary study of ozone, acidic deposition and climate effects on a mixed conifer forest in California, USA. Chemosphere 36(4-5): 1001-1006. {a} Pacific Southwest Res. Stn., USDA, Forest Serv., 4955 Canyon Crest Dr., Riverside, CA 92507, USA

Murphy, K. L., J. M. Klopatek, et al. (1998). The effects of litter quality and climate on decomposition along an elevational gradient. Ecological Applications 8(4): 1061-1071. {a} Dep. Plant Biol., Arizona State Univ., Tempe, AZ 85287-1601, USA

Nagel, L. M., J. H. Bassman, et al. (1998). Leaf anatomical changes in Populus trichocarpa, Quercus rubra, Pseudotsuga menziesii and Pinus ponderosa exposed to enhanced ultraviolet-B radiation. Physiologia Plantarum 104(3): 385-396. {a} Dept of Natural Resource Sciences, Washington State Univ., Pullman, WA, 99164-6410, USA

Nguyen, Q. A., M. P. Tucker, et al. (1998). Dilute acid pretreatment of softwoods: Scientific note. Applied Biochemistry and Biotechnology 70-72: 77-87. {a} Biotechnol. Cent. Fuels Chem., Natl. Renewable Energy Lab., Golden, CO 80401, USA

Nolte, D. L. (1998). Efficacy of selected repellents to deter deer browsing on conifer seedlings. International Biodeterioration and Biodegradation 42(2-3): 101-107. {a} USDA/APHIS Natl. Wildlife Res. Cent., 9701 Blomberg St., Olympia, WA 98512, USA

Prueitt, S. C. and D. W. Ross (1998). Effects of environment and host genetics on Eucosma sonomana (Lepidoptera: Tortricidae) infestation levels. Environmental Entomology 27(6): 1469-1472. Dep. Forest Sci., Oregon State Univ., Corvallis, OR 97331-7501, USA

Rabe, M. J., T. E. Morrell, et al. (1998). Characteristics of ponderosa pine snag roosts used by reproductive bats in northern Arizona. Journal of Wildlife Management 62(2): 612-621. {a} Arizona Game Fish Dep., Res. Branch, 2221 West Greenway Road, Phoenix, AZ 85023, USA

Roalson, E. H. and K. W. Allred (1998). A floristic study in the Diamond Creek drainage area, Gila National Forest, New Mexico. Aliso 17(1): 47-62. {a} Rancho Santa Ana Botanic Garden, 1500 N. College Ave., Claremont, CA 91711, USA

Rosenstock, S. S. (1998). Influence of Gambel oak on breeding birds in ponderosa pine forests of Northern Arizona. Condor 100(3): 485-492. {a} Ariz. Gama Fish Dep., Res. Branch, WMRS, 2221 W. Greenway Road, Phoenix, AZ 85023, USA

Scagel, C. F. and R. G. Linderman (1998). Influence of ectomycorrhizal fungal inoculation on growth and root IAA concentrations of transplanted conifers. Tree Physiology 18(11): 739-747. {a} Dep. Botany Plant Physiology, Oregon State University, Corvallis, OR 97331, USA

Schaumloffel, J. C., R. H. Filby, et al. (1998). Ponderosa pine tree rings as historical monitors of zinc and cadmium pollution. Journal of Environmental Quality 27(4): 851-859. {a} Dep. Chem., Nuclear Radiation Cent., Washington State Univ., Pullman, WA 99164-4630, USA

Schneider, W. G., S. A. Knowe, et al. (1998). Predicting survival of planted Douglas-fir and ponderosa pine seedlings on dry, low-elevation sites in southwestern Oregon. New Forests 15(2): 139-159. {a} Dep. Forest Science, College Forestry, Oregon State Univ., Corvallis, OR 97331, USA

Silva, A. A. and J. J. Morrell (1998). Inhibition of wood-staining Ophiostoma picea by Bacillus subtilis on Pinus ponderosa sapwood. Material und Organismen Berlin 32(4): 241-252. {a} 11-2 Blackthorn Avenue, Toronto, ON, M6N 3HS, Canada

Smith, J. E., K. A. Johnson, et al. (1998). Vesicular mycorrhizal colonization of seedlings of Pinaceae and Betulaceae after spore inoculation with Glomus intraradices. Mycorrhiza 7(6): 279-285. {a} US Dep. Agric., Forest Serv., Pacific Northwest Res. Station, Forestry Sci. Lab., 3200 SW Jefferson Way, Corvallis, OR 97331, USA

Snyder, M. A. and Y. B. Linhart (1998). Subspecific selectivity by a mammalian herbivore: Geographic differentiation of interactions between two taxa of Sciurus aberti and Pinus ponderosa. Evolutionary Ecology 12(7): 755-765. {a} Dep. Biol., Colo. Coll., Colorado Springs, CO 80903, USA

Todt, D. L. and N. Hannon (1998). Plant food resource ranking on the Upper Klamath River of Oregon and California: A methodology with archaeological applications. Journal of Ethnobiology. Winter 18(2): 273-308. {a} Ashland Parks Department, 340 S. Pioneer, Ashland, OR, 97520, USA

Uresk, D. W. and K. E. Severson (1998). Response of understory species to changes in ponderosa pine stocking levels in the Black Hills. Great Basin Naturalist 58(4): 312-327. Cent. Great Plains Ecosystem Res., Rocky Mountain Res. Station, Sch. Mines Campus, Rapid City, SD 57701, USA

Vander, W. S. B. and J. W. Joyner (1998). Secondary dispersal by the wind of winged pine seeds across the ground surface. American Midland Naturalist 139(2): 365-373. Dep. Biol. Ecol. Evol., Conserv. Biol. Program, Univ. Nev., Reno, NV 89557, USA

Vujanovic, V., A. M. St, et al. (1998). New hosts for Choanatiara lunata. Canadian Journal of Plant Pathology. Sept. 20(3): 319-323. {a} Departement de sciences biologiques, Institute de recherche en biologie vegetale, Universite de Montreal, 4101 est, rue Sherbrooke, Montreal, PQ, H1X 2B2, Canada

Wakeling, B. F., S. S. Rosenstock, et al. (1998). Forest stand characteristics of successful and unsuccessful Merriam's turkey nest sites in north-central Arizona. Southwestern Naturalist 43(2): 242-248. {a} Ariz. Game Fish Dep., Res. Branch, 2221 W. Greenway Road, Phoenix, AZ 85023, USA

Walker, R. F., D. R. Geisinger, et al. (1998). Atmospheric CO2 enrichment and soil N fertility effects on juvenile ponderosa pine: Growth, ectomycorrhizal development, and xylem water potential. Forest Ecology and Management 102(1): 33-44. {a} Dep. Environ. Resour. Sci., Univ. Nevada, 1000 Valley Road, Reno, NV 89512, USA

Walker, R. F., D. W. Johnson, et al. (1998). Growth and ectomycorrhizal colonization of ponderosa pine seedlings supplied different levels of atmospheric C02 and soil N and P. Forest Ecology and Management 10(1-3): 9-20. {a} Dep. Environmental Resource Sciences, University Nevada, Reno, NV 89512, USA

Wensel, L. C. and E. C. Turnblom (1998). Adjustment of estimated tree growth rates in northern California conifers for changes in precipitation levels. Canadian Journal of Forest Research 28(8): 1241-1248. {a} Dep. Environ. Sci. Policy Manage., For. Sci. Div., Univ. Calif., Berkeley, CA 94720-3114, USA

Wensel, L. C. and E. C. Turnblom (1998). Adjustment of estimated tree growth rates in northern California conifers for changes in precipitation levels. Canadian Journal of Forest Research 28(8): 1241-1248. {a} Dep. Environ. Sci. Policy Manage., For. Sci. Div., Univ. Calif., Berkeley, CA 94720-3114, USA

Witmer, G. W., M. J. Pipas, et al. (1998). Field tests of denatonium benzoate to reduce seedling damage by pocket gophers (Thomomys talpoides Rich.). Crop Protection 17(1): 35-39. {a} USDA APHIS National Wildlife Research Center, Dep. Natural Resource Sci., Wash. State Univ., Pullman, WA 99164-6410, USA

Andersen, C. P. and C. F. Scagel (1997). Nutrient availability alters belowground respiration of ozone-exposed ponderosa pine. Tree Physiology 17(6): 377-387. {a} US EPA Natl. Health Environ. Effects Res. Lab., Western Ecol. Div., 200 SW 35th St., Corvallis, OR 97333, USA

Andersen, C. P., R. Wilson, et al. (1997). Carry-over effects of ozone on root growth and carbohydrate concentrations of ponderosa pine seedlings. Tree Physiology 17(12): 805-811. {a} US EPA, Environ. Res. Lab., 200 SW 35th St., Corvallis, OR 97333, USA

Anderson, P. D., J. L. J. Houpis, et al. (1997). Seasonal variation of gas exchange and pigmentation in branches of three grafted clones of mature Ponderosa pine exposed to ozone and acid rain. Environmental Pollution 97(3): 253-263. {a} USDA Forest Serv., Forestry Sci. Lab., Rhinelander, WI, USA

Bassirirad, H., K. L. Griffin, et al. (1997). Changes in root NH-4+ and NO-3- absorption rates of loblolly and ponderosa pine in response to CO-2 enrichment. Plant and Soil 190(1): 1-9. {a} Dep. Biological Sciences, Univ. Illinois at Chicago, Chicago, IL 60607, USA

Beaudoin, R. (1997). Performance of some ponderosa pine provenances planted on three Quebec sites. Quebec Ministere des Ressources Naturelles Direction de la Recherche Forestiere Note de Recherche Forestiere(79): 1-12. {a} 2700 rue Einstein, Sainte-Foy, PQ G1P 3W8, Canada

Brayshaw, T. C. (1997). Washoe and ponderosa pines on Promontory Hill near Merritt, B.C., Canada. Annalen des Naturhistorischen Museums in Wien Serie B Botanik und Zoologie 99: 673-680. {a} Royal B.C. Mus., POB 9815 Stn. Prov Govt., Victoria, BC V8W 9W2, Canada

Carey, E. V., R. M. Callaway, et al. (1997). Stem respiration of ponderosa pines grown in contrasting climates: Implications for global climate change. Oecologia Berlin 111(1): 19-25. {a} Div. Biol. Sci., Univ. Mont., Missoula, MT 59812, USA

Chen, H. Y. H. (1997). Intraspecific responses of planted seedlings to light availability in interior British Columbia: Survival, growth, allometric patterns, and specific leaf area. Canadian Journal of Forest Research 27(9): 1383-1393. {a} Forest Sci. Dep., Univ. British Columbia, 270-2357, Main Mall, Vancouver, BC V6T 1Z4, Canada

Constable, J. V. H. and G. E. Taylor, Jr. (1997). Modeling the effects of elevated tropospheric O-3 on two varieties of Pinus ponderosa. Canadian Journal of Forest Research 27(4): 527-537. {a} Univ. Colorado, Dep. EPO Biology, Boulder, CO 80309-0334, USA

Dahlsten, D. L., D. L. Rowney, et al. (1997). Effects of oxidant air pollutants on western pine beetle (Coleoptera: Scolytidae) populations in southern California. Environmental Pollution 96(3): 415-423. {a} Cent. Biological Control, Univ. California, Berkeley, CA 94720-3112, USA

Delucia, E. H., R. M. Callaway, et al. (1997). Mechanisms of phosphorus acquisition for ponderosa pine seedlings under high CO-2 and temperature. Annals of Botany London 79(2): 111-120. {a} Dep. Plant Biol., Univ. Ill., Urbana, IL 61801, USA

Diamandis, S., L. Epstein, et al. (1997). Development of Leptographium wageneri on root surfaces and other substrata. European Journal of Forest Pathology 27(6): 381-390. {a} Forest Res. Inst., 570 06 Vassilika, Thessaloniki, Greece

Egan, A. F. and W. Merrill (1997). Susceptibility of ponderosa pine to Endocronartium harknessii and other causes of mortality in Pennsylvania. Plant Disease 81(10): 1173-1176. {a} Plant Pathol., Pa. State Univ., 211 Buckhout Lab., University Park, PA 16802, USA

Everitt, J. H., J. V. Richerson, et al. (1997). Detecting and mapping western pine beetle infestations with airborne videography, global positioning system and geographic information system technologies. Southwestern Entomologist 22(3): 293-300. {a} Remote Sensing Res. Unit, USDA-ARS, 2413 E. Highway 83, Weslaco, TX 78596, USA

Everitt, J. H., J. V. Richerson, et al. (1997). Using remote sensing to detect and monitor a western pine beetle infestation in west Texas. Southwestern Entomologist 22(3): 285-292. {a} Remote Sensing Res. Unit, USDA-ARS, 2413 E. Highway 83, Weslaco, TX 78596-8344, USA

Fenn, M. E. and A. Bytnerowicz (1997). Summer throughfall and winter deposition in the San Bernardino Mountains in southern California. Atmospheric Environment 31(5): 673-683. Pacific Southwest Forest Range Experiment Station, Forest Fire Lab., 4955 Canyon Crest Drive, Riverside, CA 92507, USA

Fule, P. Z., W. W. Covington, et al. (1997). Determining reference conditions for ecosystem management of southwestern ponderosa pine forests. Ecological Applications 7(3): 895-908. Northern Arizona Univ., Sch. Forestry, Flagstaff, AZ 86011, USA

Gardner, D. R., K. E. Panter, et al. (1997). Isocupressic acid and related diterpene acids from Pinus ponderosa as abortifacient compounds in cattle. Journal of Natural Toxins 6(1): 1-10. {a} USDA/ARS/Poisonous Plant Res. Lab., Logan, UT 84341, USA

Gerson, E. A. and R. G. Kelsey (1997). Attraction and direct mortality of pandora moths, Coloradia pandora (Lepidoptera: Saturniidae), by nocturnal fire. Forest Ecology and Management 98(1): 71-75. {a} USDA Forest Serv., PNW Res. Station, 3200 SW Jefferson, Corvallis, OR 97331, USA

Gong, P., R. Pu, et al. (1997). Conifer species recognition: An exploratory analysis of in situ hyperspectral data. Remote Sensing of Environment 62(2): 188-200. {a} Dep. Environmental Sci., Univ. Calif., 15 Hilgard Hall, Berkeley, CA 94720-3110, USA

Griffin, K. L., M. A. Bashkin, et al. (1997). Interactive effects of soil nitrogen and atmospheric carbon dioxide on root/rhizosphere carbon dioxide efflux from loblolly and ponderosa pine seedlings. Plant and Soil 190(1): 11-18. {a} Dep. Botany, Duke Univ., Durham, NC 27708, USA

Groves, C., T. Frederick, et al. (1997). Density, distribution, and habitat of Flammulated Owls in Idaho. Great Basin Naturalist 57(2): 116-123. {a} Nat. Conservancy, 2060 Broadway, Suite 230, Boulder, CO 80302, USA

Grulke, N. E. and E. H. Lee (1997). Assessing visible ozone-induced foliar injury in ponderosa pine. Canadian Journal of Forest Research 27(10): 1658-1668. {a} USDA Forest Service, Pacific Southwest Res. Station, 4955 Canyon Crest Dr., Riverside, CA 92507, USA

Huemmrich, K. F. and S. N. Goward (1997). Vegetation canopy PAR absorptance and NDVI: An assessment for ten tree species with the SAIL model. Remote Sensing of Environment 61(2): 254-269. {a} Hughes STX, Code 923, NASA/Goddard Space Flight Cent., Greenbelt, MD 20771, USA

Jain, T. B., R. T. Graham, et al. (1997). Carbon to organic matter ratios for soils in Rocky Mountain coniferous forests. Soil Science Society of America Journal 61(4): 1190-1195. {a} USDA, Forest Serv., Intermountain Research Station, 1221 S. Main, Moscow, ID 83843, USA

Johnson, D. W., J. T. Ball, et al. (1997). Effects of CO-2 and nitrogen fertilization on vegetation and soil nutrient content in juvenile ponderosa pine. Plant and Soil 190(1): 29-40. {a} Biological Sciences Cent., Desert Res. Inst., P.O. Box 60220, Reno, NV 89506, USA

Johnson, R. H., B. L. Young, et al. (1997). Responses of ponderosa pine growth and volatile terpene concentrations to manipulation of soil water and sunlight availability. Canadian Journal of Forest Research 27(11): 1794-1804. {a} Dep. Biology, Box 13003, Stephen F. Austin State Univ., Nacogdoches, TX 75962-3003, USA

Karrfalt, R. P. (1997). Upgrading seeds with IDS: A review of successes and failures. U S Forest Service General Technical Report PNW(389): 183-186. Natl. Tree Seed Lab., USDA For. Serv., Dry Branch, GA 31020, USA

Kazimierczak, B., J. Hertel, et al. (1997). On the specific pattern of long chain polyprenols in green needles of Pinus mugo Turra. Acta Biochimica Polonica 44(4): 803-808. {a} Inst. Biochem. Biophys., Polish Acad. Sci., A. Pawinskiego 5a, 02-106 Warsaw, Poland

Kiefer, J. W. and M. E. Fenn (1997). Using vector analysis to assess nitrogen status of ponderosa and Jeffrey pine along deposition gradients in forests of southern California. Forest Ecology and Management 94(1-3): 47-59. {a} US Dep. Agric., Forest Serv., Pacific Southwest Res. Stn., Forest Fire Lab., 4955 Canyon Crest Dr., Riverside, CA 92507, USA

King, J. S., R. B. Thomas, et al. (1997). Morphology and tissue quality of seedling root systems of Pinus taeda and Pinus ponderosa as affected by varying CO2, temperature, and nitrogen. Plant and Soil 195(1): 107-119. {a} Dep. Bot., Duke Univ., Durham, NC 27708, USA

Kolb, T. E., T. W. Fredericksen, et al. (1997). Issues in scaling tree size and age responses to ozone: A review. Environmental Pollution 98(2): 195-208. {a} Sch. Forestry, Coll. Ecosystem Sci. Management, Northern Ariz. Univ., Flagstaff, AZ 86011-5018, USA

Krywult, M. and A. Bytnerowicz (1997). Induction of nitrate reductase activity by nitric acid vapor in California black oak (Quercus kelloggii), a canyon live oak (Quercus chrysolepis), and ponderosa pine (Pinus ponderosa) seedlings. Canadian Journal of Forest Research 27(12): 2101-2104. {a} Inst. Botany, Pol. Acad. Sci., Lubicz 46, PL-31-512 Krakow, Poland

Lamb, T., T. R. Jones, et al. (1997). Evolutionary genetics and phylogeography of tassel-eared squirrels (Sciurus aberti). Journal of Mammalogy 78(1): 117-133. {a} Dep. Biol., E. Carolina Univ., Greenville, NC 27858, USA

Latta, R. G. and Y. B. Linhart (1997). Path analysis of natural selection on plant chemistry: The xylem resin of ponderosa pine. Oecologia Berlin 109(2): 251-258. {a} Dep. E.P.O. Biol., Univ. Colorado, Boulder, CO 80309, USA

Lauria, F. (1997). The taxonomic status of Pinus washoensis H. MASON and STOCKW. (Pinaceae). Annalen des Naturhistorischen Museums in Wien Serie B Botanik und Zoologie 99: 655-671. {a} Naturhistorisches Mus., Bot. Abteilung, Burgring 7, A-1010 Wien, Austria

Mast, J. N., T. T. Veblen, et al. (1997). Tree invasion within a pine/grassland ecotone: An approach with historic aerial photography and GIS modeling. Forest Ecology and Management 93(3): 181-194. {a} Dep. Geography Public Planning, Coll. Ecosystem Sci. Management, Northern Arizona Univ., Flagstaff, AZ 86011, USA

McMillin, J. D. and M. R. Wagner (1997). Chronic defoliation impacts pine sawfly (Hymenoptera: Diprionidae) performance and host plant quality. Oikos 79(2): 357-362. Coll. Ecosystem Sci. Management, Northern Arizona Univ., Box 15018, Flagstaff, AZ 86011, USA

Mitchell, J. E. and S. J. Popovich (1997). Effectiveness of basal area for estimating canopy cover of ponderosa pine. Forest Ecology and Management 95(1): 45-51. {a} Rocky Mountain Forest Range Exp. Stn., 3825 E. Mulberry, Fort Collins, CO 80524, USA

Molina, R., J. E. Smith, et al. (1997). Biology of the ectomycorrhizal genus, Rhizopogon. New Phytologist 137(3): 519-528. {a} U.S. Dep. Agriculture, Forest Serv., Pacific Northwest Res. Station, Forestry Sciences Lab., 3200 Jefferson Way, Corvallis, OR 97331, USA

Momen, B., P. D. Anderson, et al. (1997). Acid rain and ozone effects on gas exchange of Pinus ponderosa: A comparison between trees and seedlings. International Journal of Plant Sciences 158(5): 617-621. {a} Biol. Dep., MRC, Rensselaer Polytechnic Inst., Troy, NY 12180, USA

Monleon, V. J., K. Cromack, Jr., et al. (1997). Short- and long-term effects of prescribed underburning on nitrogen availability in ponderosa pine stands in central Oregon. Canadian Journal of Forest Research 27(3): 369-378. {a} Dep. Forest Sci., Oregon State Univ., Corvallis, OR 97331, USA

Negron, J. (1997). Estimating probabilities of infestation and extent of damage by the roundheaded pine beetle in ponderosa pine in the Sacramento Mountains, New Mexico. Canadian Journal of Forest Research 27(12): 1936-1945. {a} USDA Forest Serv., Rocky Mountain Res. Station, 240 W. Prospect, Fort Collins, CO 80526, USA

Oliver, W. W. (1997). Twenty-five-year growth and mortality of planted ponderosa pine repeatedly thinned to different stand densities in northern California. Western Journal of Applied Forestry 12(4): 122-130. Pacific Southwest Res. Stn., USDA Forest Serv., Redding, CA 96001, USA

Rose, R., D. L. Haase, et al. (1997). Root volume and growth of ponderosa pine and Douglas-Fir seedlings: A summary of eight growing seasons. Western Journal of Applied Forestry 12(3): 69-73. Dep. Forest Science, Coll. Forestry, Oregon State Univ., Corallis, OR 97331, USA

Rygiewicz, P. T., M. G. Johnson, et al. (1997). Lifetime and temporal occurrence of ectomycorrhizae on ponderosa pine (Pinus ponderosa Laws.) seedlings grown under varied atmospheric CO-2 and nitrogen levels. Plant and Soil 189(2): 275-287. {a} U.S. Environmental Protection Agency, Natl. Health Environmental Effects Res. Lab., 200 SW 35th St., Corvallis, OR 97333, USA

Scagel, C. F. and C. P. Andersen (1997). Seasonal changes in root and soil respiration of ozone-exposed ponderosa pine (Pinus ponderosa) grown in different substrates. New Phytologist 136(4): 627-643. {a} U.S.E.P.A. Natl. Health Environmental Effects Res. Lab., Western Ecol. Div., 200 S.W. 35th St., Corvallis, OR 97333, USA

Schell, S. P. and J. A. Lockwood (1997). Spatial analysis of ecological factors related to rangeland grasshopper (Orthoptera: Acrididae) outbreaks in Wyoming. Environmental Entomology 26(6): 1343-1353. Dep. Plant Soil Insect Sci., Univ. Wyoming, Laramie, WY 82071, USA

Snyder, M. A. and Y. B. Linhart (1997). Porcupine feeding patterns: Selectivity by a generalist herbivore? Canadian Journal of Zoology 75(12): 2107-2111. {a} Dep. Biol., Colorado Coll., Colorado Springs, CO 80903, USA

Stohlgren, T. J. and R. R. Bachand (1997). Lodgepole pine (Pinus contorta) ecotones in Rocky Mountain National Park, Colorado, USA. Ecology Washington D C 78(2): 632-641. {a} Biol. Resour. Div., U.S. Geol. Survey, Nat. Resour. Ecol. Lab., Colorado State Univ., Fort Collins, CO 80523, USA

Takemoto, B. K., A. Bytnerowicz, et al. (1997). Effects of ozone on Pinus ponderosa seedlings: Comparison of responses in the first and second growing seasons of exposure. Canadian Journal of Forest Research 27(1): 23-30. {a} Research Div., California Air Resources Board, P.O. Box 2815, Sacramento, CA 95812-2815, USA

Tingey, D. T., D. L. Phillips, et al. (1997). Effects of elevated CO-2 and N fertilization on fine root dynamics and fungal growth in seedling Pinus ponderosa. Environmental and Experimental Botany 37(2-3): 73-83. {a} US Environ. Protection Agency, Corvallis, OR 97333, USA

Vose, J. M., K. J. Elliott, et al. (1997). Soil respiration response to three years of elevated CO-2 and N fertilization in ponderosa pine (Pinus ponderosa Doug. ex Laws.). Plant and Soil 190(1): 19-28. {a} USDA Forest Serv., Southern Forest Experiment Station, Coweeta Hydrologic Lab., 999 Coweeta Lab Rd., Otto, NC 28763, USA

Walker, R. F., D. R. Geisinger, et al. (1997). Elevated atmospheric CO2 and soil N fertility effects on growth, mycorrhizal colonization, and xylem water potential of juvenile ponderosa pine in a field soil. Plant and Soil 195(1): 25-36. {a} Univ. Nevada, Dep. Environ. Resource Sci., Reno, NV 89512, USA

Walla, J. A., G. A. Tuskan, et al. (1997). Expression of inoculum and family specific responses in the ponderosa pine-western gall rust pathosystem. Plant Disease 81(1): 57-62. {a} North Dakota State Univ., Fargo, ND 58105, USA

Wright, R. J. and S. C. Hart (1997). Nitrogen and phosphorus status in a ponderosa pine forest after 20 years of interval burning. Ecoscience 4(4): 526-533. {a} Sch. Forestry, Coll. Ecosystem Sci. Management, Northern Arizona Univ., Flagstaff, AZ 86011, USA

Zhang, J. W., Z. Feng, et al. (1997). Carbon isotopic composition, gas exchange, and growth of three populations of ponderosa pine differing in drought tolerance. Tree Physiology 17(7): 461-466. {a} Dep. Forestry Fisheries and Wildlife, Univ. Nebraska at Lincoln, East Campus, Lincoln, NE 68583-0822, USA

Zhang, L. (1997). Cross-validation of non-linear growth functions for modelling tree height-diameter relationships. Annals of Botany London 79(3): 251-257. Fac. Forestry, State Univ. New York, Coll. Environment Sci. Forestry, Syracuse, NY 13210, USA

Agee, J. K. (1996). Achieving conservation biology objectives with fire in the Pacific Northwest. Weed Technology 10(2): 417-421. Coll. Forest Resources, Univ. Washington, Seattle, WA 98195, USA

Aston, L. S., J. Noda, et al. (1996). Organophosphate flame retardants in needles of Pinus ponderosa in the Sierra Nevada foothills. Bulletin of Environmental Contamination and Toxicology 57(6): 859-866. {a} Cent. Environ. Sci. Engineering, Univ. Nevada, Reno, NV 89557, USA

Aston, L. S. and J. N. Seiber (1996). Methods for the comparative analysis of organophosphate residues in four compartments of needles of Pinus ponderosa. Journal of Agricultural and Food Chemistry 44(9): 2728-2735. {a} Cent. Environmental Sci. Eng., Dep. Environ. Resource Sci., Univ. Nevada, Reno, NV 89957, USA

Aston, L. S. and J. N. Seiber (1996). Exchange of airborne organophosphorus pesticides with pine needles. Journal of Environmental Science and Health Part B Pesticides Food Contaminants and Agricultural Wastes 31(4): 671-698. {a} Dep. Environ. Toxicol., Univ. Calif., Davis, CA 95616, USA

Bassirirad, H., K. L. Griffin, et al. (1996). Effects of CO-2 enrichment on growth and root 15NH-4+ uptake rate of loblolly pine and ponderosa pine seedlings. Tree Physiology 16(11-12): 957-962. {a} Dep. Biol. Sci., Univ. Ill. Chicago, Chicago, IL 60607, USA

Biondi, F. (1996). Decadal-scale dynamics at the Gus Pearson Natural Area: Evidence for inverse (a)symmetric competition? Canadian Journal of Forest Research 26(8): 1397-1406. Scripps Inst. Oceanography, Geosci. Res. Div., Univ. California-San Diego, Mailcode 0215 La Jolla, CA 92093-0215, USA

Brown, P. M. and C. H. Sieg (1996). Fire history in interior ponderosa pine communities of the Black Hills, South Dakota, USA. International Journal of Wildland Fire 6(3): 97-105. {a} Rocky Mountain Forest Range Experiment Station, 240 W. Prospect Rd., Fort Collins, CO 80526, USA

Busse, M. D., P. H. Cochran, et al. (1996). Changes in ponderosa pine site productivity following removal of understory vegetation. Soil Science Society of America Journal 60(6): 1614-1621. {a} USDA-Forest Serv., Silviculture Lab., 2400 Washington Ave., Redding, CA 96001, USA

Callaway, R. M., L. E. H. De, et al. (1996). Competition and facilitation: Contrasting effects of Artemisia tridentata on desert vs. montane pines. Ecology Washington D C 77(7): 2130-2141. {a} Div. Biol. Sci., Univ. Montana, Missoula, MT 59812, USA

Carey, E. V., E. H. Delucia, et al. (1996). Stem maintenance and construction respiration in Pinus ponderosa grown in different concentrations of atmospheric CO-2. Tree Physiology 16(1-2): 125-130. {a} Dep. Plant Biol., Univ. Illinois, Urbana, IL 61801, USA

Constable, J. V. H., G. E. Taylor, Jr., et al. (1996). Climatic change effects on the physiology and growth of Pinus ponderosa: Expectations from simulation modeling. Canadian Journal of Forest Research 26(8): 1315-1325. {a} Univ. Colorado, Dep. EPO Biol., Boulder, CO 80309-0334, USA

Dix, M. E., M. Harrell, et al. (1996). Insect infestations and incidence of western gall rust among ponderosa pine sources grown in the central Great Plains. Environmental Entomology 25(3): 611-617. {a} USDA For. Serv., Rocky Mountain For. Range Experiment Stn., Natl. Agroforestry Cent., Univ. Nebraska, Lincoln, NE 68583-0822, USA

Gardner, D. R., K. E. Panter, et al. (1996). Abortifacient activity in beef cattle of acetyl- and succinylisocupressic acid from ponderosa pine. Journal of Agricultural and Food Chemistry 44(10): 3257-3261. {a} Poisonous Plant Res. Lab., Agric. Res. Serv., U.S. Dep. Agric., 1150 East 1400 North, Logan, UT 84341, USA

Gordon, T. R., A. J. Storer, et al. (1996). Population structure of the pitch canker pathogen, Fusarium subglutinans f. sp. pini, in California. Mycological Research 100(7): 850-854. Dep. Environ. Sci. Policy Management, Univ.. Calif., Berkeley, CA 94720, USA

Griffin, K. L., J. T. Ball, et al. (1996). Direct and indirect effects of elevated CO-2 on whole-shoot respiration in ponderosa pine seedlings. Tree Physiology 16(1-2): 33-41. {a} Biol. Sci. Cent., Desert Res. Inst., Reno, NV 89512, USA

Griffin, K. L., W. E. Winner, et al. (1996). Construction cost of loblolly and ponderosa pine leaves grown with varying carbon and nitrogen availability. Plant Cell and Environment 19(6): 729-738. {a} Biological Sci. Cent., Desert Res. Inst., 7010 Dandini Blvd., Reno, NV 89512, USA

Hanley, R. S. (1996). Immature stages of Scaphisoma castaneum Motschulsky (Coleoptera: Staphylinidae: Scaphidiinae), with observations on natural history, fungal hosts and development. Proceedings of the Entomological Society of Washington 98(1): 36-43. Snow Entomol. Museum, Snow Hall, Univ. Kans., Lawrence, KS 66045, USA

Harrell, M. O., J. A. Jones, et al. (1996). Life histories and parasitoids of Dioryctria borers (Lepidoptera: Pyralidae) of pines in Nebraska. Journal of the Kansas Entomological Society 69(4): 279-284. {a} Dep. Forestry Fisheries and Wildlife, Univ. Nebraska Lincoln, Lincoln, NE, 68583-0814, USA

Kaufmann, M. R. (1996). To live fast or not: Growth, vigor and longevity of old-growth ponderosa pine and lodgepole pine trees. Tree Physiology 16(1-2): 139-144. USDA Forest Service, Rocky Mountain Forest Range Experiment Station, Fort Collins, CO 80526, USA

Kelsey, R. G. (1996). Anaerobic induced ethanol synthesis in the stems of greenhouse-grown conifer seedlings. Trees Berlin 10(3): 183-188. USDA Forest Serv., Pacific Northwest Res. Stn., 3200 Jefferson Way, Corvallis, OR 97331, USA

King, J. S., R. B. Thomas, et al. (1996). Growth and carbon accumulation in root systems of Pinus taeda and Pinus ponderosa seedlings as affected by varying CO-2, temperature and nitrogen. Tree Physiology 16(7): 635-642. {a} Dep. Botany, Duke Univ., Durham, NC 27708, USA

Kolb, P. F. and R. Robberecht (1996). High temperature and drought stress effects on survival of Pinus ponderosa seedlings. Tree Physiology 16(8): 665-672. {a} Dep. Forest Resour., Coll. Forestry, Wildlife Range Sciences, Univ. Idaho, Moscow, ID 83844, USA

Kolb, P. F. and R. Robberecht (1996). Pinus ponderosa seedling establishment and the influence of competition with the bunchgrass Agropyron spicatum. International Journal of Plant Sciences 157(4): 509-515. {a} Dep. For. Resources, Dep. Range Resources, Coll. For. Wildlife Range Sci., Univ. Idaho, Moscow, ID 83844-1135, USA

Krywult, M., A. Karolak, et al. (1996). Nitrate reductase activity as an indicator of ponderosa pine response to atmospheric nitrogen deposition in the San Bernardino Mountains. Environmental Pollution 93(2): 141-146. {a} USDA Forest Serv., Pacific Southwest Research Station, 4955 Canyon Crest Dr., Riverside, CA 92507, USA

Larsen, M. J., A. E. Harvey, et al. (1996). A new species of Botryobasidium (Corticiaceae, Aphyllophorales) inhabiting the interiors of brown rotted logs of ponderosa pine. Mycotaxon 60: 429-432. {a} USDA Forest Serv., Intermountain Res. Stn., Moscow, ID, USA

Lauria, F. (1996). Typification of Pinus benthamiana HARTW. (Pinaceae), a taxon deserving renewed botanical examinations. Annalen des Naturhistorischen Museums in Wien Serie B Botanik und Zoologie 98(Suppl.): 427-446. Naturhist. Mus., Bot. Abt., Burgring 7, POB 417, A-1014 Wien, Austria

Lauria, F. (1996). The identity of Pinus ponderosa Douglas ex C. Lawson (Pinaceae). Linzer Biologische Beitraege 28(2): 999-1052. Bot. Abt., Naturhist. Mus., Burgring 7, P.O. Box 417, 1014 Vienna, Austria

Marshall, J. D. and R. A. Monserud (1996). Homeostatic gas-exchange parameters inferred from 13C/12C in tree rings of conifers. Oecologia Berlin 105(1): 13-21. {a} Dep. Forest Resources, Univ. Idaho, Moscow, ID 83843-1133, USA

Mattson, T. A., S. W. Buskirk, et al. (1996). Roost sites of the silver-haired bat (Lasionycteris noctivagans) in the black hills South Dakota. Great Basin Naturalist 56(3): 247-253. Dep. Zool. Physiol., Univ. Wyoming, Laramie, WY 82071-3166, USA

McMillin, J. D., G. Hengxiao, et al. (1996). Spatial distribution patterns of pine sawflies (Hymenoptera: Diprionidae) in Arizona, US and Sichuan, PR of China. Forest Ecology and Management 86(1-3): 151-161. {a} Box 15018, Sch. Forestry, Northern Arizona Univ., Flagstaff, AZ 86011, USA

McMillin, J. D. and M. R. Wagner (1996). Season and intensity of water stress effects on needle toughness of ponderosa pine. Canadian Journal of Forest Research 26(7): 1166-1173. {a} Sch. Forestry, P.O. Box 15018, Northern Arizaon univ., Flagstaff, AZ 86011, USA

Momen, B. and J. A. Helms (1996). Effects of simulated acid rain and ozone on foliar chemistry of field-grown Pinus ponderosa seedlings and mature trees. Environmental Pollution 91(1): 105-111. {a} Biol. Dep., MRC 302, Rensselaer Polytechnic Inst., Troy, NY 12180, USA

Momen, B., J. A. Helms, et al. (1996). Foliar metabolic heat rate of seedlings and mature trees of Pinus ponderosa exposed to acid rain and ozone. Plant Cell and Environment 19(6): 747-753. {a} Biology Department, MRC 302, Rensselaer Polytechnic Inst., Troy, NY 12180, USA

Monleon, V. J. and K. Cromack, Jr. (1996). Long-term effects of prescribed underburning on litter decomposition and nutrient release in ponderosa pine stands in central Oregon. Forest Ecology and Management 81(1-3): 143-152. {a} Dep. Forest Science, Oregon State Univ., Corvallis, OR 97331, USA

Montville, M. E., D. L. Wenny, et al. (1996). Foliar fertilization during bud initiation improves container-grown ponderosa pine seedling viability. Western Journal of Applied Forestry 11(4): 114-119. {a} Plum Creek Forest Nursery, Box 188, Pablo, MT 59855, USA

Moore, J. A., L. Zhang, et al. (1996). Height-diameter equations for ten tree species in the inland Northwest. Western Journal of Applied Forestry 11(4): 132-137. {a} Dep. Forest Res., Univ. Idaho, Moscow, ID 83844, USA

Norton, J. M. and M. K. Firestone (1996). N dynamics in the rhizosphere of Pinus ponderosa seedlings. Soil Biology and Biochemistry 28(3): 351-362. {a} Dep. Plants Soils Biometeorol., Utah State University, Logan, UT 84322-4820, USA

O, H. K. L. and P. A. Buckland (1996). Prediction of pruning wound occlusion and defect core size in ponderosa pine. Western Journal of Applied Forestry 11(2): 40-43. {a} Sch. Forestry, Univ. Montana, Missoula, MT 59812, USA

Olsen, W. K., J. M. Schmid, et al. (1996). Stand characteristics associated with mountain pine beetle infestations in ponderosa pine. Forest Science 42(3): 310-327. {a} USDA Forest Service Rocky Mountain Forest, Range Experiment Station, 240 W. Prospect Road, Fort Collins, CO 80526, USA

Page, D. D. S., A. E. Harvey, et al. (1996). Ponderosa pine seedling response to planting-site soil fumigation and fungicide application. Northwest Science 70(2): 139-147. {a} USDA For. Serv., Intermountain Res. Stn., Moscow, ID 83843, USA

Pike, K. S. and P. Stary (1996). New species of Pauesia (Hymenoptera: Braconidae: Aphidiinae) parasitoids of Cinara (Homoptera: Aphididae: Lachninae) associated with conifers in the Pacific Northwest. Proceedings of the Entomological Society of Washington 98(2): 324-331. {a} Washington State Univ., Irrigated Agric. Res. Extension Cent., 24106 N Bunn Rd, Prosser, WA 99350, USA

Powers, R. F. and G. T. Ferrell (1996). Moisture, nutrient, and insect constraints on plantation growth: The "Garden of Eden" study. New Zealand Journal of Forestry Science 26(1-2): 126-144. Pacific Southwest Res. Station, USDA Forest Serv., Redding, CA, USA

Reich, P. B., J. Oleksyn, et al. (1996). Evidence that longer needle retention of spruce and pine populations at high elevations and high latitudes is largely a phenotypic response. Tree Physiology 16(7): 643-647. {a} Dep. Forest Resources, Univ. Minnesota, 1530 N. Cleveland Avenue, St. Paul, MN 55108, USA

Rumble, M. A. and S. H. Anderson (1996). Variation in selection of microhabitats by Merriam's turkey brood hens. Prairie Naturalist 28(4): 175-188. {a} USDA Forest Serv., Rocky Mountain Forest Range Experiment Station, 501 East St. Joe, Rapid City, SD 57701, USA

Rumble, M. A. and S. H. Anderson (1996). Feeding ecology of Merriam's turkeys (Meleagris gallopavo merriami) in the Black Hills, South Dakota. American Midland Naturalist 136(1): 157-171. {a} U.S. Forest Serv., Rocky Mountain Forest Range Exp. Stn., 501 E. St. Joseph, Rapid City, SD 57701, USA

Rumble, M. A. and S. H. Anderson (1996). Microhabitats of Merriam's turkeys in the Black Hills, South Dakota. Ecological Applications 6(1): 326-334. {a} USDA, For. Serv., Rocky Mountain For. Range Exp. Station, 501 E. St. Joe, Rapid City, SD 57701, USA

Savage, M., P. M. Brown, et al. (1996). The role of climate in a pine forest regeneration pulse in the southwestern United States. Ecoscience 3(3): 310-318. {a} Dep. Geography, Univ. California, Los Angeles 90095-1524, USA

Scherer, G., B. Zamora, et al. (1996). Habitat characteristics and morphological differences of Trifolium thompsonii populations. Northwest Science 70(3): 242-251. {a} USDA-Forestry Science Lab., 1133 Western Avenue, Wenatchee, WA 98801, USA

Spiegel, L. H. and P. W. Price (1996). Plant aging and the distribution of Rhyacionia neomexicana (Lepidoptera: Tortricidae). Environmental Entomology 25(2): 359-365. {a} State Wyoming, Forestry Div., 1100 West 22nd Street, Cheyenne, WY 82002, USA

Stanosz, G. R., D. R. Smith, et al. (1996). Characterization of Sphaeropsis sapinea from the west central United States by means of random amplified polymorphic DNA marker analysis. Plant Disease 80(10): 1175-1178. {a} Dep. Plant Pathol., Univ. Wisconsin-Madison, 1630 Linden Dr., Madison, WI 53706, USA

Synder, M. A., B. Fineschi, et al. (1996). Multivariate discrimination of host use by dwarf mistletoe Arceuthobium vaginatum subsp. cryptopodum: Inter- and intraspecific comparisons. Journal of Chemical Ecology 22(2): 295-305. {a} Univ. Colorado, Boulder, CO 80309-0334, USA

Tingey, D. T., M. G. Johnson, et al. (1996). Effects of elevated CO-2 and nitrogen on the synchrony of shoot and root growth in ponderosa pine. Tree Physiology 16(11-12): 905-914. {a} U.S. Environ. Protection Agency, Corvallis, OR 97333, USA

Tinus, R. W. (1996). A trials of plug transplant seedling production in the southwest. Western Journal of Applied Forestry 11(3): 81-84. Rocky Mountain Forest Range Exp. Stn., 2500 S. Pine Knoll Dr., Flagstaff, AZ 86001, USA

Torick, L. L., D. F. Tomaback, et al. (1996). Occurrence of multi-genet tree clusters in "wind-dispersed" pines. American Midland Naturalist 136(2): 262-266. {a} Dep. Biol. Cent. Environmental Sci., Univ. Colorado Denver, Denver, CO 80217, USA

Verhoeven, A. S., W. W. I. Adamsi, et al. (1996). Close relationship between the state of the xanthophyll cycle pigments and photosystem II efficiency during recovery from winter stress. Physiologia Plantarum 96(4): 567-576. {a} Dep. Environmental, Population and Organismic Biol., Univ. Colorado, Boulder, CO 80309-0334, USA

Villa, C. J. and M. R. Wagner (1996). Effect of overstory density of Ips pini (Coleoptera: Scolytidae) performance in ponderosa pine slash. Journal of Economic Entomology 89(6): 1537-1545. {a} Inst. Nac. Investigaciones Forestales Agropecuarias, Campo Experimental Clavellinas, Cd. Guzman, Jalisco, Mexico

Wagner, O. E. (1996). Anisotropy of wave velocities in plants: Gravitropism. Physiological Chemistry and Physics and Medical NMR 28(3): 173-196. Wagner Res. Lab., 2645 Sykes Creek Road, Rogue River, OR 97537, USA

Wiant, H. V., Jr., G. B. Wood, et al. (1996). Comparison of three modern methods for estimating volume of sample trees using one or two diameter measurements. Forest Ecology and Management 83(1-2): 13-16. {a} Div. Forestry, W. V. Univ., PO Box 6125, Morgantown, WV 26506, USA

Woo, S. Y., K. J. Lee, et al. (1996). Influences of environmental gradients on the patterns of vegetation structure and tree age distribution in the east side of Cascade Range, Washington, USA. Journal of Korean Forestry Society 85(1): 107-119. {a} Coll. Forest Resources, Univ. Washington, Box 352100, Seattle, WA 98195-2100, USA

Zhang, J., J. D. Marshall, et al. (1996). Correlated population differences in dry matter accumulation, allocation, and water-use efficiency in three sympatric conifer species. Forest Science 42(2): 242-249. {a} Dep. Forestry, Fisheries Wildlife, Univ. Nebraska Lincoln, East Campus, Lincoln, NE 68583-0822, USA

Zhou, B. and J. P. McTague (1996). Comparison and evaluation of five methods of estimation of the Johnson system parameters. Canadian Journal of Forest Research 26(6): 928-935. {a} D.B. Warnell Sci. Forest Resources, Univ. Georgia, Athens, GA 30602-2152, USA

Zwieniecki, M. A. and M. Newton (1996). Seasonal pattern of water depletion from soil-rock profiles in a Mediterranean climate in southwestern Oregon. Canadian Journal of Forest Research 26(8): 1346-1352. {a} For. Sci. Dep., Oregon State Univ., Corvallis, OR 97331, USA

Adams, W. W. I., A. B. Demmig, et al. (1995). 'Photoinhibition' during winter stress: Involvement of sustained xanthophyll cycle-dependent energy dissipation. Australian Journal of Plant Physiology 22(2): 261-276. {a} Dep. Environ. Popul. Org. Biol., Univ. Colo., Boulder, CO 80309-0334, USA

Al, M. M. S., S. P. Ford, et al. (1995). Isolation and characterization of vasoactive lipids from the needles of Pinus ponderosa. Journal of Agricultural and Food Chemistry 43(8): 2154-2161. {a} Cent. Biocatalysis Bioprocessing, Coll. Pharm., Univ. Iowa, Iowa City, IA 52242, USA

Andersen, C. P. and P. T. Rygiewicz (1995). Allocation of carbon in mycorrhizal Pinus ponderosa seedlings exposed to ozone. New Phytologist 131(4): 471-480. U. S. Environmental Protection Agency, Corvallis Environmental Research Laboratory, 200 SW 35th Street, Corvallis, OR 97333, USA

Belton, M. C., C. K. F. O, et al. (1995). Phosphorus levels in topsoils under conifer plantations in Canterbury high country grasslands. New Zealand Journal of Forestry Science 25(3): 265-282. {a} Cent. Computer Biometrics, P.O. Box 84, Lincoln Univ., Canterbury, New Zealand

Benes, S. E., T. M. Murphy, et al. (1995). Relationship of antioxidant enzymes to ozone tolerance in branches of mature ponderosa pine (Pinus ponderosa) trees exposed to long-term, low concentration, ozone fumigation and acid precipitation. Physiologia Plantarum 94(1): 124-134. {a} Sect. Plant Biol., Univ. Calif., Davis, CA 95616, USA

Buchanan, J. B., L. L. Irwin, et al. (1995). Within-stand nest site selection by spotted owls in the eastern Washington Cascades. Journal of Wildlife Management 59(2): 301-310. {a} Washington Dep. Fish Wildlife, 600 Capitol Way N., Olympia, WA 98501, USA

Clark, C. S., J. A. Weber, et al. (1995). Accentuation of gas exchange gradients in flushes of ponderosa pine exposed to ozone. Tree Physiology 15(3): 181-189. {a} ManTech Environ. Technol. Inc., 200 SW 35th St., Corvallis, OR 97333, USA

Cochran, P. H. and J. W. Barrett (1995). Growth and mortality of ponderosa pine poles thinned to various densities in the Blue Mountains of Oregon. U S Forest Service Research Paper PNW(483): 1-27. Silviculture Lab., 1027 NW Trenton Ave., Bend, OR 97701, USA

Dumroese, R. K., D. L. Wenny, et al. (1995). Nursery waste water: The problem and possible remedies. U S Forest Service General Technical Report PNW(365): 89-97. {a} Forest Res. Nursery, Univ. Idaho, Moscow, ID 83844, USA

Fenn, M. E. and T. D. Leininger (1995). Uptake and distribution of nitrogen from acidic fog within a ponderosa pine (Pinus ponderosa Laws.)/litter/soil system. Forest Science 41(4): 645-663. {a} Pacific Southwest Res. Stn., USDA Forest Serv., 4955 Canyon Crest Drive, Riverside, CA 92507, USA

Fenn, M. E., M. A. Poth, et al. (1995). Throughfall chemistry of ponderosa pine exposed to wet and dry acidic deposition, drought, ozone, and nitric acid. Canadian Journal of Forest Research 25(1): 88-100. {a} USDA Forest Serv., Pacific Southwest Forest and Range Exp. Stn., 4955 Canyon Crest Drive, Riverside, CA 92507, USA

Filip, G. M., C. A. Parks, et al. (1995). Tree wound dynamics in thinned and unthinned stands of grand fir, ponderosa pine, and lodgepole pine in Eastern Oregon. Northwest Science 69(4): 276-283. {a} Dep. Forest Sci., Oregon State University, Corvallis, OR 97331, USA

Gressel, N., J. G. McColl, et al. (1995). Spectroscopy of aqueous extracts of forest litter: II. Effects of management practices. Soil Science Society of America Journal 59(6): 1723-1731. {a} Div. Ecosystem Sci., Dep. Environ. Sci. Policy Manage., Univ. Calif., Berkeley, CA 94720, USA

Griffin, K. L., W. E. Winner, et al. (1995). Growth and dry matter partitioning in loblolly and ponderosa pine seedlings in response to carbon and nitrogen availability. New Phytologist 129(4): 547-556. {a} Biol. Sci. Cent., Desert Res. Inst., 7010 Dandini Blvd., Reno, NV 89512, USA

Johnson, D. W., T. Ball, et al. (1995). Effects of elevated CO-2 and nitrogen on nutrient uptake in ponderosa pine seedlings. Plant and Soil 168-169: 535-545. {a} Biol. Sci. Cent. Desert Res. Inst., Reno, NV 89506, USA

Johnson, D. W., R. F. Walker, et al. (1995). Combined effects of nitrogen and elevated CO-2 on soils from controlled environment studies. Water Air and Soil Pollution 85(3): 1551-1556. {a} Desert Res. Inst., Univ. Nevada, Reno, NV 89512, USA

Kennedy, P. L., D. E. Crowe, et al. (1995). Breeding biology of the zone-tailed hawk at the limit of its distribution. Journal of Raptor Research 29(2): 110-116. {a} Dep. Fishery Wildlife Biol., Colo. State Univ., Fort Collins, CO 80523, USA

Klemmedson, J. O. (1995). New Mexican locust and parent material: Influence on availability of soil macronutrients. Soil Science Society of America Journal 59(3): 913-917. Sch. Renewable Nat. Resour., Univ. Ariz., Tucson, AZ 85721, USA

Little, S. N. and L. J. Shainsky (1995). Biomass and nutrient distributions in central Oregon second-growth ponderosa pine ecosystems. U S Forest Service Research Paper PNW(481): I-II, 1-17. Pacific Northwest Res. Station, P.O. Box 3890, Portland, OR 97208-3890, USA

Lundquist, J. E. (1995). Characterizing disturbance in managed ponderosa pine stands in the Black Hills. Forest Ecology and Management 74(1-3): 61-74. Rocky Mountain Forest Range Experiment Station, 240 W. Prospect Rd., Fort Collins, CO 80526, USA

Lundquist, J. E. (1995). Disturbance profile: A measure of small-scale disturbance patterns in ponderosa pine stands. Forest Ecology and Management 74(1-3): 49-59. Rocky Mountain Forest Range Experiment Station, 240 W. Prospect Rd., Fort Collins, CO 80526, USA

McMillin, J. D. and M. R. Wagner (1995). Effects of water stress on biomass partitioning of ponderosa pine seedlings during primary root growth and shoot growth periods. Forest Science 41(3): 594-610. Sch. Forestry, Box 15018, Northern Arizona University, Flagstaff, AZ 86011, USA

McMillin, J. D. and M. R. Wagner (1995). Season and intensity of water stress: Host-plant effects on larval survival and fecundity of Neodiprion gillettei (Hymenoptera: Diprionidae). Environmental Entomology 24(5): 1251-1257. Sch. Forest., North. Ariz. Univ., Box 15018, Flagstaff, AZ 86011, USA

Minnich, R. A., M. G. Barbour, et al. (1995). Sixty years of change in Californian conifer forests of the San Bernardino Mountains. Conservation Biology 9(4): 902-914. {a} Dep. Environ. Hortic, Univ. Calif., Davis, CA 95616, USA

Momen, B. and J. A. Helms (1995). Osmotic adjustment induced by elevated ozone: Interactive effects of acid rain and ozone on water relations of field-grown seedlings and mature trees of Pinus ponderosa. Tree Physiology 15(12): 799-805. {a} MRC, Biol. Dep., Renselaer Polytech. Inst., Troy, NY 12180, USA

Nemati, N. and H. Goetz (1995). Relationships of overstory to understory cover variables in a Ponderosa pine/gambel oak ecosystem. Vegetatio 119(1): 15-21. Colorado State Univ., Rangeland Ecosystem Sci. Dep., Fort Collins, CO 80523, USA

O, H. K. L. and N. I. Valappil (1995). Sapwood-leaf area prediction equations for multi-aged ponderosa pine stands in western Montana and central Oregon. Canadian Journal of Forest Research 25(9): 1553-1557. {a} Sch. Forestry, Univ. Montana, Missoula, MT 59812, USA

Omdal, D. W., C. G. I. Shawi, et al. (1995). Variation in pathogenicity and virulence of isolates of Armillaria ostoyae on eight tree species. Plant Disease 79(9): 939-944. {a} Dep. Plant Pathol. Weed Sci., Colo. State Univ., Fort Collins, CO 80523, USA

Riegel, G. M., R. F. Miller, et al. (1995). The effects of aboveground and belowground competition on understory species composition in a Pinus ponderosa forest. Forest Science 41(4): 864-889. {a} USDA Forest Serv., Silviculture Lab., 1027 N.W. Trenton Ave., Bend, OR 97701, USA

Ross, D. W. (1995). Short-term impacts of thinning ponderosa pine on pandora moth densities, pupal weights, and phenology. Western Journal of Applied Forestry 10(3): 91-94. Dep. Forest Science, Oregon State University, Corvallis, OR 97331, USA

Ruddick, J. N. R. and C. Xie (1995). Influence of the enhanced nitrogen in ammoniacal copper treated wood on decay by brown and white rot fungi. Material und Organismen Berlin 29(2): 93-104. Dep. Wood Sci., Fac. Forestry, Univ. British Columbia, 270-2357 Main Mall, Vancouver, BC V6T 1Z4, Canada

Ryan, M. G., S. T. Gower, et al. (1995). Woody tissue maintenance respiration of four conifers in contrasting climates. Oecologia Berlin 101(2): 133-140. {a} USDA Forest Serv., Rocky Mountain Exp. Stn., 240 West Prospect Street, Fort Collins, CO 80526-2098, USA

Short, R. E., S. P. Ford, et al. (1995). Abortifacient response and plasma vasoconstrictive activity after feeding needles from ponderosa pine trees to cattle and sheep. Journal of Animal Science 73(7): 2102-2104. {a} Rt. 1, Box 2021, Ft. Keogh LARRL, ARS, USDA, Miles City, MT 59301, USA

Short, R. E., R. B. Staigmiller, et al. (1995). Endocrine responses in cows fed ponderosa pine needles and the effects of stress, corpus luteum regression, progestin, and ketoprofen. Journal of Animal Science 73(1): 198-205. {a} Fort Keogh Livest. Range Res. Lab., ARS, USDA, Rt. 1, Box 2021, Miles City, MT 59301, USA

Sowa, S. and K. F. Connor (1995). Biochemical changes during pollen germination measured in vivo by infrared spectroscopy. Plant Science Limerick 105(1): 23-30. {a} USDA-Forest Serv., Southern Forest Exp. Stn., P.O. Box 906, Starkville, MS 39759, USA

Tawara, J. N., F. R. Stermitz, et al. (1995). Alkaloids of young ponderosa pine seedlings and late steps in the biosynthesis of pinidine. Phytochemistry Oxford 39(3): 705-708. Dep. Chem., Colo. State Univ., Fort Collins, CO 80523, USA

Temple, P. J. and G. H. Riechers (1995). Nitrogen allocation in ponderosa pine seedlings exposed to interacting ozone and drought stresses. New Phytologist 130(1): 97-104. Statewide Air Pollution Res. Cent., Univ. Calif., Riverside, CA 92521, USA

Vose, J. M., K. J. Elliott, et al. (1995). Effects of elevated CO-2 and N fertilization on soil respiration from ponderosa pine (Pinus ponderosa) in open-top chambers. Canadian Journal of Forest Research 25(8): 1243-1251. {a} USDA Forest Service, Southeastern Forest Exp. Stn., Coweeta Hydrologic Laboratory, 999 Coweeta Lab Road, Otto, NC 28763, USA

Walker, R. F., D. R. Geisinger, et al. (1995). Interactive effects of atmospheric CO-2 enrichment and soil N on growth and ectomycorrhizal colonization of ponderosa pine seedlings. Forest Science 41(3): 491-500. {a} Dep. Environ. Resour. Sci., Univ. Nevada, Reno, NV, USA

Walker, R. F., D. R. Geisinger, et al. (1995). Enriched atmospheric CO-2 and soil P effects on growth and ectomycorrhizal colonization of juvenile ponderosa pine. Forest Ecology and Management 78(1-3): 207-215. {a} Dep. Environmental, Resources Sci., University Nevada, Reno, NV 89512, USA

Weber, U. M. and F. H. Schweingruber (1995). A dendroecological reconstruction of western spruce budworm outbreaks (Choristoneura occidentalis) in the Front Range, Colorado, from 1720 to 1986. Trees Berlin 9(4): 204-213. {a} Swiss Natl. Mus., Dep. Res. Dev., Hardturmstr. 181, CH-8005 Zurich, Switzerland

Wilson, R., A. Cataldo, et al. (1995). Determination of total nonstructural carbohydrates in tree species by high-performance anion-exchange chromatography with pulsed amperometric detection. Canadian Journal of Forest Research 25(12): 2022-2028. {a} U.S. Environ. Protection Agency, Environ. Res. Lab., 200 SW 35th St., Corvallis, OR 97333, USA

Zhang, J. and J. D. Marshall (1995). Variation in carbon isotope discrimination and photosynthetic gas exchange among populations of Pseudotsuga menziesii and Pinus ponderosa in different environments. Functional Ecology 9(3): 402-412. {a} USDA Forest Serv., Cent. Semiarid Agrofor., East Campus-UNL, Lincoln, NE 68583-0822, USA

Adams, W. W. I. and A. B. Demmig (1994). Carotenoid composition and down regulation of photosystem II in three conifer species during the winter. Physiologia Plantarum 92(3): 451-458. Dep. Environmental, Population Organismic Biol., Univ. Colorado, Boulder, CO 80309-0334, USA

Agee, J. K. (1994). Fire and weather disturbances in terrestrial ecosystems of the eastern Cascades. U S Forest Service General Technical Report PNW(320): 1-52. Div. Ecosystem Science and Conservation, Coll. Forest Resources at Univ. Wash., Seattle, WA, USA

Allred, W. S. and W. S. Gaud (1994). Effects of abert squirrel herbivory on foliage and nitrogen losses in ponderosa pine. Southwestern Naturalist 39(4): 350-353. Dep. Biol. Sci., Northern Arizona Univ., Flagstaff, AZ 86011, USA

Allred, W. S. and W. S. Gaud (1994). Characteristics of ponderosa pines and Abert squirrel herbivory. Southwestern Naturalist 39(1): 89-90. Dep. Biol. Sci., Northern Ariz. Univ., Flagstaff, AZ 86011, USA

Allred, W. S., W. S. Gaud, et al. (1994). Effects of herbivory by abert squirrels (Sciurus aberti) on cone crops of Ponderosa pine. Journal of Mammalogy 75(3): 700-703. Dep. Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA

Anderson, P. D. and J. A. Helms (1994). Tissue water relations of Pinus ponderosa and Arctostaphylos patula exposed to various levels of soil moisture depletion. Canadian Journal of Forest Research 24(7): 1495-1502. USFS Foresty Sci. Lab., P.O. Box 898, Rhinelander, WI 54501, USA

Bertram, S. L. and T. D. Paine (1994). Influence of aggregation inhibitors (verbenone and ipsdienol) on landing and attack behavior of Dendroctonus brevicomis (Coleoptera: Scolytidae). Journal of Chemical Ecology 20(7): 1617-1629. {a} Dep. Entomol., Univ. Calif., Riverside, CA 92521, USA

Biondi, F., D. E. Myers, et al. (1994). Geostatistically modeling stem size and increment in an old-growth forest. Canadian Journal of Forest Research 24(7): 1354-1368. {a} Scripps Inst. Oceanography, Geol. Res. Div., Univ. Calif., La Jolla, CA 92093-0215, USA

Callaway, R. M., E. H. Delucia, et al. (1994). Biomass allocation of montane and desert ponderosa pine: An analog for response to climate change. Ecology Tempe 75(5): 1474-1481. {a} Plant Biol., Univ. Illinois, Urbana, Illinois 61801, USA

Callaway, R. M., E. H. Delucia, et al. (1994). Compensatory responses of CO-2 exchange and biomass allocation and their effects on the relative growth rate of ponderosa pine in different CO-2 and temperature regimes. Oecologia Berlin 98(2): 159-166. {a} Div. Biol. Sci., Univ. Montana, Missoula, MO 59812, USA

Cochran, P. H., J. M. Geist, et al. (1994). Suggested stocking levels for forest stands in northeastern Oregon and southeastern Washington. U S Forest Service Research Note PNW(513): 1-21. {a} Pacific Northwest Research Station, Silviculture Lab., 1027 NW Trenton Ave., Bend, OR 97701, USA

Cregg, B. M. (1994). Carbon allocation, gas exchange, and needle morphology of Pinus ponderosa genotypes known to differ in growth and survival under imposed drought. Tree Physiology 14(7-9): 883-898. USDA Forest Serv., Cent. Semiarid Agroforestry, Rocky Mountain Forest Range Experiment Station, East Campus-UNL, Lincoln, NE 68583-0822, USA

Delucia, E. H., R. M. Callaway, et al. (1994). Offsetting changes in biomass allocation and photosynthesis in ponderosa pine (Pinus ponderosa) in response to climate change. Tree Physiology 14(7-9): 669-677. {a} Dep. Plant Biology, Univ. Ill., Urbana, IL 61801, USA

Durall, D. M., J. D. Marshall, et al. (1994). Morphological changes and photosynthate allocation in ageing Hebeloma crustuliniforme (Bull.) Quel. and Lacaria bicolor (Maire) Orton mycorrhizas of Pinus ponderosa Dougl. ex. Laws. New Phytologist 127(4): 719-724. {a} Dep. Biol., Okanaga Univ. Coll., Kelowna, BC V1V 1V7, Canada

Eberhardt, T. L. and R. A. Young (1994). Conifer Seed Cone Proanthocyanidin Polymers: Characterization by 13C NMR Spectroscopy and Determination of Antifungal Activities. Journal of Agricultural and Food Chemistry 42(8): 1704-1708. {a} Dep. Forestry, Univ. Wisconsin, Madison, WI 53706, USA

Entry, J. A., P. T. Rygiewicz, et al. (1994). 90Sr uptake by Pinus ponderosa and pinus radiata seedlings inoculated with ectomycorrhizal fungi. Environmental Pollution 86(2): 201-206. {a} Dep. Agron. and Soils, 202 Funchess Hall, Auburn Univ., Auburn, AL 36849-5412, USA

Fassnacht, K. S., S. T. Gower, et al. (1994). A comparison of optical and direct methods for estimating foliage surface area index in forest. Agricultural and Forest Meteorology 71(1-2): 183-207. {a} Dep. Forestry, Univ. Wisconsin, 1630 Linden Drive, Madison, WI 53706, USA

Ganey, J. L. and R. P. Balda (1994). Habitat selection by Mexican spotted owls in northern Arizona. Auk 111(1): 162-169. {a} USDA For. Serv., Rocky Mountain Forest Range Exp. Stn., 2500 S. Pine Knoll, Flagstaff, AR 86001, USA

Ganey, J. L. and W. M. Block (1994). A comparison of two techniques for measuring canopy closure. Western Journal of Applied Forestry 9(1): 21-23. USDA Forest Serv., Rocky Mountain Forest Range Experiment Station, 2500 S. Pine Knoll Dr., Flagstaff, AZ 86001, USA

Gardner, D. R., R. J. Molyneux, et al. (1994). Ponderosa pine needle-induced abortion in beef cattle: Identification of isocupressic acid as the principal active compound. Journal of Agricultural and Food Chemistry 42(3): 756-761. {a} Poisonous Plant Res. Lab., Agric. Res. Service, US Dep. Agric., 1150 East 1400 North, Logan, UT 84321, USA

Gast, S. J. and M. W. Stock (1994). Genetic diversity in overwintered and non-overwintered Ips pini (Say) (Coleoptera: Scolytidae) in Idaho. Pan Pacific Entomologist 70(4): 259-266. {a} USDA For. Serv., Timber Coop. For. Pest Manage., Coeur d'Alene, Idaho 83814, USA

Habeck, J. R. (1994). Using general land office records to assess forest succession in Ponderosa Pine/Douglas-fir forests in western Montana. Northwest Science 68(2): 69-78. Div. Biol. Sci., Univ. Montana, Missoula, MT 59812, USA

Halloran, M. E. and M. Bekoff (1994). Nesting behaviour of Abert squirrels (Sciurus aberti). Ethology 97(3): 236-248. {a} Dep. EPO-Biol., Campus Box 334, Univ. Colo., Boulder, CO 80309-0334, USA

Hamilton, D. A., Jr. and G. E. Rehfeldt (1994). Using individual tree growth projection models to estimate stand-level gains attributable to genetically improved stock. Forest Ecology and Management 68(2-3): 189-207. {a} US Dep. Agric. Forest Service, Intermountain Res. Station, Forestry Sci. Lab., 1221 South Main St., Moscow, ID 83843, USA

Hogan, T. (1994). Low-elevation biodiversity in Colorado. Natural Areas Journal 14(1): 58-59. Univ. Colorado Herbarium, Campus Box 350, Boulder, CO 80309, USA

Ingham, E. R. and H. B. Massicotte (1994). Protozoan communities around conifer roots colonized by ectomycorrhizal fungi. Mycorrhiza 5(1): 53-61. {a} Dep. Botany Plant Pathology, Oregon State Univ., Corvallis, OR 97331, USA

Jackson, S. T. and S. J. Smith (1994). Pollen dispersal and representation on an isolated, forested plateau. New Phytologist 128(1): 181-193. {a} Dep. Biol. Sci., Northern Ariz. Univ., Flagstaff, AZ 86011-5640, USA

James, L. F., R. J. Molyneux, et al. (1994). Effect of feeding ponderosa pine needle extracts and their residues to pregnant cattle. Cornell Veterinarian 84(1): 33-39. {a} USDA-ARS Poisonous Plant Res. Lab., 1150 E. 1400 N., Logan, UT 84321, USA

Johnson, D., D. Geisinger, et al. (1994). Soil pCO-2, soil respiration, and root activity in CO-2-fumigated and nitrogen-fertilized ponderosa pine. Plant and Soil 165(1): 129-138. {a} Desert Res. Inst. Environ. Resource Sci., Univ. Nevada, Reno, NV 09506-60220, USA

Johnson, L. F. (1994). Multiple view zenith angle observations of reflectance from ponderosa pine stands. International Journal of Remote Sensing 15(18): 3859-3865. Johnson Controls World Serv. Inc., NASA/Ames Res. Cent., MS 242-4, Moffett Field, CA 94035-1000, USA

Klemmedson, J. O. (1994). New Mexican locust and parent material: Influence on forest floor and soil macronutrients. Soil Science Society of America Journal 58(3): 974-980. Sch. Renewable Natural Resources, Univ. Arizona, Tucson, AZ 85721, USA

Laurence, J. A., R. G. Amundson, et al. (1994). Allocation of carbon in plants under stress: An analysis of the ROPIS experiments. Journal of Environmental Quality 23(3): 412-417. {a} Boyce Thompson Inst. Plant Res., Ithaca, NY 14853, USA

Law, B. E. and R. H. Waring (1994). Combining remote sensing and climatic data to estimate net primary production across Oregon. Ecological Applications 4(4): 717-728. Dep. Forest Sci., Oregon State Univ., Corvallis, OR 97331, USA

Law, B. E. and R. H. Waring (1994). Remote sensing of leaf area index and radiation intercepted by understory vegetation. Ecological Applications 4(2): 272-279. Dep. Forest Sci., Oregon State Univ., Corvallis, OR 97331, USA

Lee, K., F. Y. Bih, et al. (1994). Oleosins in the gametophytes of Pinus and Brassica and their phylogenetic relationship with those in the sporophytes of various species. Planta Heidelberg 193(3): 461-469. {a} Dep. Botany Plant Sci., Univ. California, Riverside, CA 92521-0124, USA

Li, X. J., P. J. Burton, et al. (1994). Interactive effects of light and stratification on the germination of some British Columbia conifers. Canadian Journal of Botany 72(11): 1635-1646. {a} Dep. Forest Sci., 270-2357 Main Mall, Univ. British Columbia, Vancouver, BC V6T 1Z4, Canada

Linhart, Y. B., M. A. Snyder, et al. (1994). Differential host utilization by two parasites in a population of ponderosa pine. Oecologia Berlin 98(1): 117-120. Dep. Environ. Popul. Org. Biol., Campus Box 334, Univ. Colo., Boulder, CO 80309, USA

Lundquist, J. E., J. A. Walla, et al. (1994). Characteristics of Peridermium harknessii in axenic culture. Canadian Journal of Forest Research 24(7): 1345-1353. {a} U.S. Forest Serv., Rocky Mountain Forest and Range Exp. Stn., Fort Collins, CO 80523, USA

Marshall, J. D. and J. Zhang (1994). Carbon isotope discrimination and water-use efficiency in native plants of the north-central Rockies. Ecology Tempe 75(7): 1887-1895. Dep. Forest Resources, Univ. Idaho, Moscow, ID 83843, USA

Massicotte, H. B., R. Molina, et al. (1994). Biology of the ectomycorrhizal genus, Rhizopogon: II. Patterns of host-fungus specificity following spore inoculation of diverse hosts grown in monoculture and dual culture. New Phytologist 126(4): 677-690. {a} Dep. Agric., Forest Serv., Pacific Northwest Res. Stn., Forestry Sci. Lab., 3200 Jefferson Way, Corvallis, OR 97331, USA

McDonald, P. M., C. S. Abbott, et al. (1994). Response of young ponderosa pines, shrubs, and ferns to three release treatments. Western Journal of Applied Forestry 9(1): 24-28. {a} Pacific Southwest Res. Station, USDA Forest Serv., Redding, CA 96001, USA

McDonald, P. M., G. O. Fiddler, et al. (1994). Large mulches and manual release enhance growth of ponderosa pine seedlings. New Forests 8(2): 169-178. {a} Pacific Southwest Res. Station, Forest Serv., U.S. Dep. Agric., Redding, CA 96001, USA

McDonald, P. M., G. O. Fiddler, et al. (1994). Genetically improved ponderosa pine seedlings outgrow nursery-run seedlings with and without competition: Early findings. Western Journal of Applied Forestry 9(2): 57-61. {a} Pacific Southwest Res. Station, USDA Forest Service, Redding, CA 96001, USA

Newcombe, G., G. A. Chastagner, et al. (1994). Additional Coniferous Aecial Hosts of the Poplar Leaf Rusts, Melampsora larici-populina and M. medusae f. sp. deltoidae. Plant Disease 78(12): 1218. Washington State University, Puyallup, WA 98371-4998, USA

Omi, S. K., R. Rose, et al. (1994). Fall lifting and long-term freezer storage of ponderosa pine seedlings: Effects on starch, root growth, and field performance. Canadian Journal of Forest Research 24(3): 624-637. {a} Dep. Forest Sci., Oregon State University, Corvallis, OR 97331-5705, USA

Paine, T. D. and C. C. Hanlon (1994). Influence of oleoresin constituents from Pinus ponderosa and Pinus jeffreyi on growth of mycangial fungi from Dendroctonus ponderosae and Dendroctonus jeffreyi. Journal of Chemical Ecology 20(10): 2551-2563. {a} Dep. Entomol., Univ. Calif., Riverside, CA 92521, USA

Payandeh, B. and Y. Wang (1994). Modified site index equations for major Canadian timber species. Forest Ecology and Management 64(1): 97-101. {a} Forestry Can., Natural Resources Can., Ont. Region, 1219 Queen St. East, Sault Ste. Marie, ON P6A 5M7, Canada

Peterson, D. L., S. S. Sackett, et al. (1994). The effects of repeated prescribed burning on Pinus ponderosa growth. International Journal of Wildland Fire 4(4): 239-247. {a} Cooperative Park Studies Unit, Univ. Washington, AR-10, Seattle, WA 98195, USA

Rose, J. A. and L. E. Eddleman (1994). Ponderosa pine and understory growth following western juniper removal. Northwest Science 68(2): 79-85. {a} East. Oreg. Agric. Res. Cent., Oreg. State Univ., Burns, OR 97720, USA

Sanchez, M. G. and M. R. Wagner (1994). Sawfly (Hymenoptera: Diprionidae) and artificial defoliation affects above-and below-ground growth of ponderosa pine seedlings. Journal of Economic Entomology 87(4): 1038-1045. {a} Inst. Nac. Investigaciones, Forestales Agropecuarias, Campo Exp. Madera, Madera, Chihuahua, Mexico

Savage, M. (1994). Anthropogenic and natural disturbance and patterns of mortality in a mixed conifer forest in California. Canadian Journal of Forest Research 24(6): 1149-1159. Dep. Geography, Univ. Calif., Los Angeles, CA 90024-1524, USA

Schwab, F. E. and A. R. E. Sinclair (1994). Biodiversity of diurnal breeding bird communities related to succession in the dry Douglas-fir forests of southeastern British Columbia. Canadian Journal of Forest Research 24(10): 2034-2040. {a} Labrador Coll., Labrador City, NF A2V 2Y1, Canada

Short, R. E., R. A. Bellows, et al. (1994). Pine needle abortion in cattle: Effects of diet variables on consumption of pine needles and parturition response. Journal of Animal Science 72(4): 805-810. {a} Rt. 1, Box 2021, Fort Keogh Livestock Range Res. Lab., ARS, USDA, Miles City, MT 59301, USA

Sorensen, F. C. (1994). Genetic variation and seed transfer guidelines for Ponderosa pine in Central Oregon. U S Forest Service Research Paper PNW(472): 1-24. Forestry Sci. Lab., 3200 SW Jefferson Way, Corvallis, OR 97331, USA

Sorensen, F. C. (1994). Frequency of seedlings from natural self-fertilization in Pacific Northwest ponderosa pine (Pinus ponderosa Dougl. ex Laws.). Silvae Genetica 43(2-3): 100-108. USDA Forest Serv., Pacific Northwest Res. Stn., 3200 SW Jefferson Way, Corvallis, OR 97331, USA

Sorensen, F. C. and J. C. Weber (1994). Genetic variation and seed transfer guidelines for Ponderosa Pine in the Ochoco and Malheur National Forests of Central Oregon. U S Forest Service Research Paper PNW(468): I, 1-26. Forestry Sci. Lab., 3200 S.W. Jefferson Way, Corvallis, OR 97331, OR

Sower, L. L. and R. G. Mitchell (1994). Mating disruption of western pine shoot borer (Lepidoptera: Olethreutidae) in lodgepole pine. Journal of Economic Entomology 87(1): 144-147. {a} Forestry Sci. Lab., 3200 Jefferson Way, Corvallis, OR 97331, USA

Stermitz, F. R., J. N. Tawara, et al. (1994). Piperidine alkaloid content of Picea (spruce) and Pinus (pine). Phytochemistry Oxford 35(4): 951-953. Dep. Chem., Colorado State Univ., Fort Collins, CO 80523, USA

Stohlgren, T. J. and C. A. Farmer (1994). Reevaluating delineated bald eagle winter roost habitat in Lava Beds National Monument, California. Journal of Raptor Research 28(4): 205-212. {a} Natl. Biol. Survey, Nat. Res. Ecol. Lab., Colorado State Univ., Ft. Collins, CO 80523, USA

Synder, M. A. and Y. B. Linhart (1994). Nest-site selection by Abert's squirrel: Chemical characteristics of nest trees. Journal of Mammalogy 75(1): 136-141. Dep. Environmental Population and Organismic Biology, University Colorado, Boulder, CO 80309-0334, USA

Temple, P. J. and P. R. Miller (1994). Foliar ozone injury and radial growth of ponderosa pine. Canadian Journal of Forest Research 24(9): 1877. {a} Statewide Air Pollution Res. Cent., Univ. Calif., Riverside, CA 92521, USA

Vander, W. S. B. (1994). Removal of wind-dispersed pine seeds by ground-foraging vertebrates. Oikos 69(1): 125-132. Dep. Biol., Univ. Nevada, Reno, NV 89557, USA

Volney, W. J. A. (1994). Multi-century regional western spruce budworm outbreak patterns. Trends in Ecology and Evolution 9(2): 43-45. The Northern Forestry Centre, Canadian Forest Service, Edmonton, AB T6H 3S5, Canada

Weinstein, D. A. and R. D. Yanai (1994). Integrating the effect of simultaneous multiple stresses on plants using the simulation model TREGRO. Journal of Environmental Quality 23(3): 418-428. {a} Boyce Thompson Inst. Plant Res., Cornell Univ., Tower Rd., Ithaca, NY 14853, USA

Wingfield, M. J., T. C. Harrington, et al. (1994). Three new Leptographium species associated with conifer roots in the United States. Canadian Journal of Botany 72(2): 227-238. {a} Dep. Microbiol. Biochem., Univ. Orange Free State, P.O. Box 339, Bloemfontein 9300, South Africa

Yoder, B. J., M. G. Ryan, et al. (1994). Evidence of Reduced Photosynthetic Rates in Old Trees. Forest Science 40(3): 513-527. {a} Dep. For. Sci., Coll. Forestry, Oregon State Univ., Corvallis, OR 97331, USA

Zabowski, D. and C. L. Henry (1994). Soil and foliar nitrogen after fertiliser treatment of ponderosa pine. New Zealand Journal of Forestry Science 24(2-3): 333-343. Coll. Forest Resource, AR-10, Univ. Washington, Seattle, WA 98195, USA

Zwank, P. J., K. W. Kroel, et al. (1994). Habitat characteristics of Mexican spotted owls in southern New Mexico. Journal of Field Ornithology 65(3): 324-334. {a} U.S. Fish Wildlife Serv., N.M. Cooperative Fish Wildlife Res. Unit, N.M. State Univ., Las Cruces, NM 88003, USA

Zwieniecki, M. A. and M. Newton (1994). Root distribution of 12-year-old forests at rocky sites in southwestern Oregon: Effects of rock physical properties. Canadian Journal of Forest Research 24(9): 1791-1796. {a} Dep. Forest Sci., Oregon State Univ., Corvallis, OR 97331, USA

Anderson, R. S. (1993). A 35,000 year vegetation and climate history from Potato Lake, Mogollon Rim, Arizona. Quaternary Research Orlando 40(3): 351-359. Quaternary Studies and Environmental Sciences Programs, Bilby Research Center, Northern Arizona University, Flagstaff, AZ 86011, USA

Barrick, K. A. and M. G. Noble (1993). The iron and manganese status of seven upper montane tree species in Colorado, USA, following long-term waterlogging. Journal of Ecology 81(3): 523-531. {a} Dep. Geography, Univ. Alaska Fairbanks, Fairbanks, AK 99775-0780, USA

Barton, A. M. and J. A. Teeri (1993). The ecology of elevational positions in plants: Drought resistance in five montane pine species in southeastern Arizona. American Journal of Botany 80(1): 15-25. {a} Cent. Evolutionary Ecol., T. H. Morgan Sch. Biol. Sci., Univ. Ky., Lexington, KY 40506, USA

Beier, C., K. Hansen, et al. (1993). Spatial variability of throughfall fluxes in a spruce forest. Environmental Pollution 81(3): 257-267. {a} Dep. Forest Health Ecosystems, Danish Forest Landscape Res. Inst., Skovbrynet 16, DK-2800 Lyngby, Denmark

Benkman, C. W. (1993). Adaptation to single resources and the evolution of crossbill (Loxia) diversity. Ecological Monographs 63(3): 305-325. Dep. Biol., Box 30001, New Mexico State Univ., Las Cruces, New Mexico 88003, USA

Burr, K. E., S. J. Wallner, et al. (1993). Heat tolerance, cold hardiness, and bud dormancy relationships in seedlings of selected conifers. Journal of the American Society for Horticultural Science 118(6): 840-844. {a} U.S. Dep. Agric. Forest Serv., Rocky Mountain Forest Range Exp. Stn., Forestry Sci. Lab., 2500 South Pine Knoll Drive, Flagstaff, AZ 86001, USA

Christenson, L. K., R. E. Short, et al. (1993). Effects of ingestion of pine needles (Pinus ponderosa) by late-pregnant beef cows on potential sensitive Ca-2+ channel activity of caruncular arteries. Journal of Reproduction and Fertility 98(1): 301-306. {a} Dep. Anim. Sci., Iowa State Univ., Ames, IA 50011, USA

Connor, K. F. and L. E. Towill (1993). Pollen-handling protocol and hydration/dehydration characteristics of pollen for application to long-term storage. Euphytica 68(1-2): 77-84. {a} U.S. For. Serv., Sch. For. Resources Bldg., Miss. State Univ., Starkville, MS 39762, USA

Cregg, B. M. (1993). Seed-source variation in water relations, gas exchange, and needle morphology of mature ponderosa pine trees. Canadian Journal of Forest Research 23(4): 749-755. USDA Forest Serv., Cent. Semiarid Agroforestry, Rocky Mountain Forest and Range Exp. Stn., Lincoln, NE 68583-0822, USA

De, G. P. and B. V. Helson (1993). Efficacy and timing of insecticide sprays for control of white pine Weevil (Coleoptera: Curculionidae) in high-value pine plantations. Journal of Economic Entomology 86(4): 1171-1177. Forestry Can., Forest Pest Management Inst., Box 490, Sault Ste. Maire, Ontario P6A 5M7, Canada

Dvorak, J. and J. Stokrova (1993). Structure of the needles in the early phases of development in Pinus ponderosa P. et C. Lawson with special reference to plastids. Annals of Botany London 72(5): 423-431. {a} Inst. Botany, Acad. Sci. Czech Republic, 252 43 Pruhonice near Prague, Czech Republic

Eamus, D. (1993). Assimilation and stomatal conductance responses of red spruce to midwinter frosts and the constituent ions of acid mist. Tree Physiology 13(2): 145-155. Sch. Biol. Sci., Northern Territory Univ., P.O. Box 40146, Casuarina, Northern Territory, Australia

Entry, J. A., P. T. Rygiewicz, et al. (1993). Accumulation of Cesium-137 and Strontium-90 in ponderosa pine and Monterey pine seedlings. Journal of Environmental Quality 22(4): 742-746. {a} Dep. Agron. and Soils, 202 Funchess Hall, Auburn Univ., Auburn, AL 36849-5412, USA

Fenn, M. E. and A. Bytnerowicz (1993). Dry deposition of nitrogen and sulfur to Ponderosa and Jeffrey Pine in the San Bernardino National Forest in southern California. Environmental Pollution 81(3): 277-285. Pacific Southwest Forest Range Exp. Stn., USDA-FS, Forest Fire Lab., 4955 Canyon Crest Dr., Riverside, CA 92507, USA

Gast, S. J., M. W. Stock, et al. (1993). Physiological factors affecting attraction of Ips pini (Coleoptera: Scolytidae) to host odor or natural male pheromone in Idaho. Annals of the Entomological Society of America 86(4): 417-422. {a} USDA Forest Serv., 1201 Ironwood Dr., Coeur d'Alene, ID 83815, USA

Glaubig, R. and M. Poth (1993). A method for total phosphorus determinations in nitric-perchloric digests of pine needles and roots. Communications in Soil Science and Plant Analysis 24(17-18): 2469-2477. Pacific Southwest Research Station, USDA Forest Serv., 4955 Canyon Crest Drive, Riverside CA 92507, USA

Gower, S. T., B. E. Haynes, et al. (1993). Influence of fertilization on the allometric relations for two pines in contrasting environments. Canadian Journal of Forest Research 23(8): 1704-1711. {a} Dep. Forestry, Univ. Wis., 1630 Linden Drive, Madison, WI 53706, USA

Grulke, N. E., J. L. Hom, et al. (1993). Physiological adjustment of two full-sib families of ponderosa pine to elevated carbon dioxide. Tree Physiology 12(4): 391-401. {a} Forest Serv., U.S. Dep. Agriculture, Pacific Southwest Forest Range Experiment Station, 4955 Canyon Crest Drive, Riverside, CA 92507, USA

Harrington, M. G. (1993). Predicting Pinus ponderosa mortality from dormant season and growing season fire injury. International Journal of Wildland Fire 3(2): 65-72. U.S. Dep. Agric., Forest Serv., Intermountain Fire Sci. Lab., Intermountain Res. Stations, P.O. Box 8089, Missoula, MT 59807, USA

Hobson, K. R., D. L. Wood, et al. (1993). Chiral specificity in responses by the bark beetle Dendroctonus valens to host kairomones. Journal of Chemical Ecology 19(9): 1837-1846. {a} Utah State Univ., Dep. Forest Resources, Logan, UT 84322-5215, USA

Hudson, A. J. (1993). The influence of mountain alder on the growth, nutrition, and survival of black spruce and Sitka spruce in an afforested heathland near Mobile, Newfoundland. Canadian Journal of Forest Research 23(4): 753-748. 1B Judges Terrace, Grand Falls-Windsor, Newfoundland A2A 1L3, Canada

Lang, C. and O. Reymond (1993). Water quality indicated by benthic invertebrates in mountain rivers of western Switzerland. Bulletin de la Societe Vaudoise des Sciences Naturelles 82(3): 193-200. Marquisat 1, CH-1025 St.-Sulpice, Suisse

Lattin, J. D. and N. L. Stanton (1993). A review of the genus Melanocoris Champion with remarks on distribution and host tree associations (Hemiptera: Heteroptera: Anthocoridae). Journal of the New York Entomological Society 101(1): 95-107. {a} Systematic Entomology Laboratory, Dep. Entomology, Oregon State University, Cordley Hall 2046, Corvallis, OR 97331-2907

Lavallee, R., Y. Mauffette, et al. (1993). Development of the white pine weevil (Coleoptera: Curculionidae) on cut leaders of white pine. Environmental Entomology 22(4): 824-830. {a} Laurentine Forestry Cent., Forestry Canada-Quebec Region, Sainte-Foy, Quebec G1V 4C7, Canada

Leather, S. R. (1993). Influence of site factor modification on the population development of the pine beauty moth (Panolis flammea) in a Scottish lodgepole pine (Pinus contorta) plantation. Forest Ecology and Management 59(3-4): 207-223. Dep. Biol., Imperial Coll., Silwood Park, Ascot, SL5 7PY, UK

Lonsdale, W. M. (1993). Rates of spread of an invading species Mimosa pigra in northern Australia. Journal of Ecology 81(3): 513-521. CSIRO Div. Entomol., PMB 44, Winnellie, Darwin, NT, Australia

Mazari, A. and E. L. Camm (1993). Effect of cytokinins on plastid development and photosynthetic polypeptides during organogenesis of Pinus ponderosa Dougl. cotyledons cultured in vitro. Plant Cell Tissue and Organ Culture 33(1): 81-89. {a} Dep. Botany, Univ. British Columbia, Vancouver, B.C. V6T 1Z4, Canada

McDonald, P. M. and G. O. Fiddler (1993). Feasibility of alternatives to herbicides in young conifer plantations in California. Canadian Journal of Forest Research 23(10): 2015-2022. {a} Pacific Southwest Res. Station, USDA Forest Service, 2400 Washington Ave., Redding, CA 96001, USA

Nordmeyer, A. H. and N. J. Ledgard (1993). Above-ground biomass, productivity, and nutrients in 15-year-old stands of Ponderosa pine, Corsican pine, Douglas fir, and European larch in the Craigieburn Range, New Zealand. Studia Forestalia Suecica(191): 75-85. N.Z. Forest Res. Inst., P.O. Box 465, Rangiora, New Zealand

Paillotin, G., A. Dobek, et al. (1993). Why does the light-gradient photovoltage from photosynthetic organelles show a wavelength-dependent polarity? Biophysical Journal 65(1): 379-385. {a} Abt. Biophysik, Fachbereich Biologie/Chemie, Universitaet Osnabrueck, Barbarastrasse 11, D-4500 Osnabrueck, Germany

Pedras, M. S. C., J. L. Taylor, et al. (1993). A novel chemical signal from the "blackleg" fungus: Beyond phototoxins and phytoalexins. Journal of Organic Chemistry 58(18): 4778-4780. {a} Plant Biotechnol. Inst., Natl. Res. Council Can., Saskatoon, SK S7N 0W9, Canada

Peterson, D. L., M. J. Arbaugh, et al. (1993). Effects of ozone and climate on ponderosa pine (Pinus ponderosa) growth in the Colorado Rocky Mountains. Canadian Journal of Forest Research 23(9): 1750-1759. {a} Natl. Park Serv., Coop. Park Stud. Unit, Coll. For. Resour., Univ. Wash., AR-10, Seattle, WA 98195, USA

Prins, H. H. T. and D. J. H. P. Van (1993). Herbivore population crashes and woodland structure in East Africa. Journal of Ecology 81(2): 305-314. {a} Dep. Nature Conservation, Univ. Wageningen, PO Box 8080, 6700 DD Wageningen, Netherlands Antilles

Randall, J. M. and M. Rejmanek (1993). Interference of bull thistle (Cirsium vulgare) with growth of ponderosa pine (Pinus ponderosa) seedlings in a forest plantation. Canadian Journal of Forest Research 23(8): 1507-1513. {a} Bot. Dep., Univ. Calif., Davis, CA 95616, USA

Regelbrugge, J. C. and S. G. Conard (1993). Modeling tree mortality following wildfire in Pinus ponderosa forests in the Central Sierra Nevada of California. International Journal of Wildland Fire 3(3): 139-148. Pacific Southwest Res. Station, USDA Forest Serv., 4955 Canyon Crest Dr., Riverside, CA 92507, USA

Rehfeldt, G. E. (1993). Genetic variation in the Ponderosae of the Southwest. American Journal of Botany 80(3): 330-343. Intermountaine Res. Station, U.S. Dep. Agriculture, Forest Serv., 1221 S. Main Street, Moscow, Idaho 83843

Rumble, M. A. and S. H. Anderson (1993). Macrohabitat associations of Merriam's turkeys in the Black Hills, South Dakota. Northwest Science 67(4): 238-245. {a} USDA, Forest Serv., Rocky Mountain Forest Range Exp. Stn., 501 E. St. Joe, Rapid City, SD 57701, USA

Rumble, M. A. and S. H. Anderson (1993). Habitat selection of Merriam's turkey (Meleagris gallopavo merriami) hens with poults in the Black Hills, South Dakota. Great Basin Naturalist 53(2): 131-136. {a} USDA Forest Service, 501 E. St. Joseph St., South Dakota Sch. Mines, Rapid City, South Dakota 57701, USA

Rumble, M. A. and R. A. Hodorff (1993). Nesting ecology of Merriam's turkeys in the Black Hills, South Dakota. Journal of Wildlife Management 57(4): 789-801. {a} USDA Forest Serv., Rocky Mountain Forest Range Exp. Stn., 501 East St. Joe, Rapid City, SD 57701, USA

Shashkin, A. V. and E. A. Vaganov (1993). Simulation model of climate-determined variability of the growth of conifers, using steppe pines as an example. Ekologiya Moscow(5): 3-9. Inst. For. Timber, Sib. Dep., Russ. Acad. Sci., Krasnoyarsk, Russia

Stohlgren, T. J. (1993). Bald eagle winter roost characteristics in Lava Beds National Monument, California. Northwest Science 67(1): 44-54. Natl. Park Service, Natl. Resource Ecology Lab., Colorado State Univ., Fort Collins, Colo. 80523

Takemoto, B. K. and A. Bytnerowicz (1993). Effects of acidic fog on seedlings of Pinus ponderosa and Abies concolor: Foliar injury, Physiological and biochemical responses. Environmental Pollution 79(3): 235-241. {a} California Air Resources Board, Research Div., Sacramento, CA 95812, USA

Tam, S. C. and G. Sposito (1993). Fluorescence spectroscopy of aqueous pine litter extracts: Effects of humification and aluminium complexation. Journal of Soil Science 44(3): 513-524. {a} Dep. Chemistry, Univ. Aberdeen, Aberdeen AB9 2UE, UK

Tawara, J. M., A. Blokhin, et al. (1993). Toxic piperidine alkaloids from pine (Pinus) and spruce (Picea) trees: New structures and a biosynthetic hypothesis. Journal of Organic Chemistry 58(18): 4813-4818. {a} Dep. Chem., Colo. State Univ., Fort Collins, CO 80523, USA

Temple, P. J., G. H. Riechers, et al. (1993). Growth responses of ponderosa pine to long-term exposure to ozone, wet and dry acidic deposition, and drought. Canadian Journal of Forest Research 23(1): 59-66. {a} Statewide Air Pollution Research Center, Univ. California, Riverside, CA 92521, USA

Wagner, M. R. and Z. Y. Zhang (1993). Host plant traits associated with resistance of ponderosa pine to the sawfly, Neodiprion fulviceps. Canadian Journal of Forest Research 23(5): 839-845. {a} Sch. Forestry, Box 15018, Northern Ariz. Univ., Flagstaff, AZ 86011, USA

Waring, R. H., J. Runyon, et al. (1993). Developing remote sensing techniques to estimate photosynthesis and annual forest growth across a steep climatic gradient in western Oregon, USA. Studia Forestalia Suecica(191): 33-42. {a} Coll. Forestry, Oregon State Univ., Corvallis, OR 97331, USA

Weber, J. A., C. S. Clark, et al. (1993). Analysis of the relationships among ozone uptake, conductance, and photosynthesis in needles of Pinus ponderosa. Tree Physiology 13(2): 157-172. {a} U.S. EPA Environ. Res. Lab., 200 SW 35th Street, Corvallis, OR 97333, USA

Weigand, J. F., R. W. Haynes, et al. (1993). Economic assessment of ungulate herbivory in commercial forests of eastern Oregon and Washington, USA. Forest Ecology and Management 61(1-2): 137-155. {a} USDA Pacific Northwest Res. Station, P.O. Box 3890, Portland, OR 97208, USA

White, M. A. and J. L. Vankat (1993). Middle and high elevation coniferous forest communities of the North Rim region of Grand Canyon National Park, Arizona, USA. Vegetatio 109(2): 161-174. {a} Dep. Botany, Miami Univ., Oxford, OH 45056, USA

Xanthopoulos, G. and R. H. Wakimoto (1993). A time to ignition-temperature-moisture relationship for branches of three western conifers. Canadian Journal of Forest Research 23(2): 253-258. {a} Natural Res. Technologies Consulting, 45 Agias Eleousis St., Athens, 17675, Greece

Bell, J. H., J. L. Lauer, et al. (1992). Habitat use patterns of white-tailed deer, Umatilla River, Oregon. Northwest Science 66(3): 160-171.

Beyers, J. L., G. H. Riechers, et al. (1992). Effects of long-term ozone exposure and drought on the photosynthetic capacity of ponderosa pine (Pinus ponderosa Laws.). New Phytologist 122(1): 81-90. {a} USDA Forest Serv., Forest Fire Lab., 4955 Canyon Crest Dr., Riverside, Calif. 92507, USA

Covington, W. W. and S. S. Sackett (1992). Soil mineral nitrogen changes following prescribed burning in ponderosa pine. Forest Ecology and Management 54(1-4): 175-191. {a} P.O. Box 4098, Sch. Forestry, Northern Arizona Univ., Flagstaff, Ariz. 86011

Dunbar, C. S. and M. R. Wagner (1992). Bionomics of Neodiprion gillettei (Hymenoptera: Diprionidae) on Pinus ponderosa. Annals Of The Entomological Society Of America 85(3): 286-292.

Entry, J. A., N. E. Martin, et al. (1992). Chemical constituents in root bark of five species of western conifer saplings and infection by Armillaria ostoyae. Phytopathology 82(4): 393-397.

Fox, J. W., D. L. Wood, et al. (1992). Survival and development of Ips paraconfusus Lanier (Coleoptera: Scolytidae) reared axenically and with tree-pathogenic fungi vectored by cohabiting Dendroctonus species. Canadian Entomologist 124(6): 1157-1167. {a} Dep. Entomological Sci., University California, Berkeley, Calif. 94270

Gijzen, M., E. Lewinsohn, et al. (1992). Antigenic cross-reactivity among monoterpene cyclases from grand fir and induction of these enzymes upon stem wounding. Archives Of Biochemistry And Biophysics 294(2): 670-674.

Hart, S. C., M. K. Firestone, et al. (1992). Decomposition and nutrient dynamics of ponderosa pine needles in a Mediterranean-type climate. Canadian Journal Of Forest Research 22(3): 306-314.

Himejima, M., K. R. Hobson, et al. (1992). Antimicrobial terpenes from oleoresin of ponderosa pine tree Pinus ponderosa: A defense mechanism against microbial invasion. Journal of Chemical Ecology 18(10): 1809-1818. {a} Div. Entomol. Parasitol., Coll. Nat. Resources, Univ. Calif., Berkeley, Calif. 94720

Jain, R. K. (1992). Fuelwood characteristics of certain hardwood and softwood tree species of India. Bioresource Technology 41(2): 129-133.

Kalabokidis, K. D. and R. H. Wakimoto (1992). Prescribed burning in uneven-aged stand management of ponderosa pine/Douglas fir forests. Journal Of Environmental Management 34(3): 221-235.

Khalilov, R. I. and A. N. Tikhonov (1992). Inhibition of photochemical activity of the photosystem II of higher plants chloroplasts under UV light effect. Biofizika 37(5): 935-938. Phys. Fac., M.V. Lomonosov Mosc. State Univ., Moscow, Russia

Klemmedson, J. O. (1992). Decomposition and nutrient release from mixtures of gambel oak and ponderosa pine leaf litter. Forest Ecology And Management 47(1-4): 349-362.

Kralovec, M. L., R. L. Knight, et al. (1992). Nesting productivity, food habits, and nest sites of bald eagles in Colorado and southeastern Wyoming. Southwestern Naturalist 37(4): 356-361. {a} Dep. Fishery Wildlife Biol., Colorado State Univ., Fort Collins, CO 80523

Langer, E. R. (1992). Chemical control of wilding conifer seedlings in New Zealand. Plant Protection Quarterly 7(3): 135-139. New Zealand Forest Res. Inst., P.O. Box 31 011, Christchurch, New Zealand

McDonald, P. M. (1992). Estimating seed crops of conifer and hardwood species. Canadian Journal Of Forest Research 22(6): 832-838.

McDonald, P. M., C. N. Skinner, et al. (1992). Ponderosa pine needle length: An early indicator of release treatment effectiveness. Canadian Journal Of Forest Research 22(5): 761-764.

McPherson, G. R. (1992). Comparison of linear and non-linear overstory-understory models for ponderosa pine: A conceptual framework. Forest Ecology and Management 55(1-4): 31-34. For.-Watershed Sci. Program, Sch. Renewable Nat. Resour., Univ. Ariz., Tucson, AZ 85721, USA

McTague, J. P. (1992). Enhanced estimates of total volume with any single upper-stem measurement. Forest Ecology And Management 48(1-2): 55-67.

Nair, K. S. S. and G. Mathew (1992). Biology, infestation characteristics and impact of the bagworm, Pteroma plagiophleps Hamps. in forest plantations of Paraserianthes falcataria. Entomon 17(1-2): 1-13. Div. Entomol., Kerala Forest Res. Inst., Peechi, Kerala, India 680 653

Oliver, W. W. and K. L. Dolph (1992). Mixed-conifer seedling growth varies in response to overstory release. Forest Ecology And Management 48(1-2): 179-183.

Otrosina, W. J., T. E. Chase, et al. (1992). Allozyme differential of intersterility groups of Heterobasidion annosum isolated from conifers in the Western United States. Phytopathology 82(5): 540-545.

Riegel, G. M., R. F. Miller, et al. (1992). Competition for resources between understory vegetation and overstory Pinus ponderosa in northeastern Oregon. Ecological Applications 2(1): 71-85.

Ruddick, J. N. R. (1992). Bacterial depletion of copper from CCA-treated wood. Material und Organismen Berlin 27(2): 135-146. Fac. For., Univ. British Columbia, Mac Millan Build., 270-2357 Main Mall, Vancouver, B.C. V6T 1Z4, Canada

Schmid, J. M., S. A. Mata, et al. (1992). Bark temperature patterns in mountain pine beetle susceptible stands of lodgepole pine in the central rockies. Canadian Journal of Forest Research 22(11): 1669-1675. {a} USDA Forest Serv., Rocky Mountain Forest and Range Experiment Station, 240 West Prospect, Fort Collins, Co. 80526, USA

Short, R. E., L. F. James, et al. (1992). Effects of feeding Ponderosa pine needles during pregnancy: Comparative studies with bison, cattle, goats, and sheep. Journal of Animal Science 70(11): 3498-3504. {a} Fort Keogh Livestock Range Res. Lab., ARS, USDA, Miles City, Montana 59301

Telewski, F. W. (1992). Ethylene production by different age class ponderosa and Jeffrey pine needles as related to ozone exposure and visible injury. Trees Berlin 6(4): 195-198. Buffalo Erie County Botanical Garden, 2655 South Park Ave., Buffalo, N.Y. 14218

Temple, P. J., G. H. Riechers, et al. (1992). Foliar injury response of Ponderosa pine seedlings to ozone, wet and dry acidic deposition, and drought. Environmental And Experimental Botany 32(2): 101-113.

Von, R. E. V. and M. S. Lapp (1992). Chemosystematic studies in the genus Pinus: VII. The leaf oil terpene composition of ponderosa pine, Pinus ponderosa. Canadian Journal Of Botany 70(2): 374-378.

Wagner, J. E. and D. B. Rideout (1992). The stability of the capital asset pricing model's parameters in analyzing forest investments. Canadian Journal of Forest Research 22(11): 1639-1645. {a} USDA Forest Service, Southeastern Forest Experiment Station, 3041 Cornwallis Rd., Box 12254, Research Triangle Park, N.C. 27709, USA

Yow, T. H., M. R. Wagner, et al. (1992). Influence of selection for volume growth on the genetic variability of southwestern ponderosa pine. Silvae Genetica 41(6): 326-333. {a} School Forestry, P.O. Box 4098, Northern Arizona University, Flagstaff, AZ 86011, USA

Brigham, R. M. (1991). Flexibility in foraging and roosting behavior by the big brown bat (Eptesicus fuscus). Canadian Journal Of Zoology 69(1): 117-121.

Capo, A. M. and M. Newton (1991). Survival-and-growth of five species of Pinus seedlings after different approaches to competition control: "Bridging" studies between Oregon and Mexico. New Forests 5(3): 219-238.

Delucia, E. H. and W. H. Schlesinger (1991). Resource-use efficiency and drought tolerance in adjacent great basin and Sierran plants. Ecology 72(1): 51-58.

Fritts, H. C., E. E. Vaganov, et al. (1991). Climate variation and tree-ring structure in conifers: Empirical and mechanistic models of tree-ring width, number of cells, cell size, cell-wall thickness and wood density. Climate Research 1(2): 97-116.

Goodson, N. J., D. R. Stevens, et al. (1991). Effects of snow on foraging ecology and nutrition of bighorn sheep. Journal Of Wildlife Management 55(2): 214-222.

Houpis, J. L. J., M. P. Costella, et al. (1991). A branch exposure chamber for fumigating ponderosa pine to atmospheric pollution. Journal Of Environmental Quality 20(2): 467-474.

Klemmedson, J. O. (1991). Oak influence of nutrient availability in pine forests of central Arizona (USA). Soil Science Society Of America Journal 55(1): 248-253.

Lewinsohn, E., M. Gijzen, et al. (1991). Defense mechanisms of conifers: Relationship of monoterpene cyclase activity to anatomical specialization and oleoresin monoterpene content. Plant Physiology 96(1): 38-43.

Lieutier, F., A. A. Berryman, et al. (1991). Preliminary study of the monoterpene response of three pines to Ophiostoma clavigerum (Ascomycetes: Ophiostomatales) and two chemical elicitors. Annales Des Sciences Forestieres 48(4): 377-388.

Lin, Y., M. R. Wagner, et al. (1991). In vitro formation of axillary buds by immature shoots of ponderosa pine. Plant Cell Tissue And Organ Culture 26(3): 161-166.

McDonald, P. M. (1991). Container seedlings outperform bareroot stock: Survival and growth after 10 years. New Forests 5(2): 147-156.

Mitchell, J. E. and P. N. S. Bartling (1991). Comparison of linear and nonlinear overstory-understory models for ponderosa pine. Forest Ecology And Management 42(3-4): 195-204.

Mitchell, R. G. and L. L. Sower (1991). Life history of the western pine shoot borer (Lepidoptera: Olethreutidae) and effects on lodgepole pine in central Oregon (USA). Journal Of Economic Entomology 84(1): 206-211.

Omi, S. K., R. Rose, et al. (1991). Effectiveness of freezer storage in fulfilling the chilling requirement of fall-lifted ponderosa pine seedlings. New Forests 5(4): 307-326.

Omi, S. K., B. Yoder, et al. (1991). Fall lifting and long-term freezer storage of ponderosa pine seedlings: Effects on post-storage leaf water potential, stomatal conductance, and root growth potential. Tree Physiology 8(3): 315-325.

Paine, T. D. and C. C. Hanlon (1991). Response of Dendroctonus brevicomis and Ips paraconfusus (Coleoptera: Scolytidae) to combinations of synthetic pheromone attractants and inhibitors verbenone and ipsdienol. Journal Of Chemical Ecology 17(11): 2163-2176.

Panter, K. E., F. D. Galey, et al. (1991). Ponderosa pine needle induced parturition in cattle: Analysis for presence of mycotoxins. Journal Of Agricultural And Food Chemistry 39(5): 927-929.

Parks, C. A. and J. T. Hoffman (1991). Control of western dwarf mistletoe with the plant-growth regulator ethephon. U S Forest Service Research Note Pnw(506): 1-4.

Riegel, G. M., R. F. Miller, et al. (1991). Understory vegetation response to increasing water and nitrogen levels in a Pinus ponderosa forest in northeastern Oregon (USA). Northwest Science 65(1): 10-15.

Rose, R., J. Gleason, et al. (1991). Grading ponderosa pine seedlings for outplanting according to their root volume. Western Journal Of Applied Forestry 6(1): 11-20.

Schmid, J. M., S. A. Mata, et al. (1991). Water potential in ponderosa pine stands of different growing-stock levels. Canadian Journal Of Forest Research 21(6): 750-755.

Schuman, G. E. and S. E. Belden (1991). Decomposition of wood-residue amendments in revegetated bentonite mine spoils. Soil Science Society Of America Journal 55(1): 76-80.

Shurkhal, A. V., A. V. Podogas, et al. (1991). Genetic differentiation of 18 pine species based on allozyme loci: The genus Pinus: subgenera Strobus and Pinus. Doklady Akademii Nauk Sssr 316(2): 484-488.

Sloan, J. P. (1991). Ponderosa and lodgepole pine seedling bud burst varies with lift date and cultural practices in Idaho (USA) nursery. U S Forest Service Research Note Int(397): 1-9.

Sowa, S., K. F. Connor, et al. (1991). Temperature changes in lipid and protein structure measured by Fourier Transform IR spectrophotometry in intact pollen grains. Plant Science 78(1): 1-10.

Tisdale, R. A. and M. R. Wagner (1991). Host stress influences oviposition preference and performance of a pine sawfly. Ecological Entomology 16(3): 371-376.

Tuskan, G. A. and P. L. Ellis (1991). Auxin-impregnated hygroscopic gel: Effects on ponderosa pine and common hackberry seedlings. New Forests 5(4): 359-367.

Vance, N. C. and J. B. Zaerr (1991). Influence of drought stress and low irradiance on plant water relations and structural constituents in needles of Pinus ponderosa seedlings. Tree Physiology 8(2): 175-184.

Vose, J. M. and A. S. White (1991). Biomass response mechanisms of understory species the first year after prescribed burning in an Arizona (USA) ponderosa pine community. Forest Ecology And Management 40(3-4): 175-188.

Walla, J. A., G. A. Tuskan, et al. (1991). Comparison of white-spored and orange-spored Peridermium harknessii in native North Dakota (USA) Pinus ponderosa. Mycologia 83(3): 251-256.

White, A. S., J. E. Cook, et al. (1991). Effects of fire and stand structure on grass phenology in a Ponderosa pine forest. American Midland Naturalist 126(2): 269-278.

White, C. S. (1991). The role of monoterpenes in soil nitrogen cycling processes in ponderosa pine: Results from laboratory bioassays and field studies. Biogeochemistry 12(1): 43-68.

Zhang, X. and J. S. States (1991). Selective herbivory of ponderosa pine by Abert squirrels: A re-examination of the role of terpenes. Biochemical Systematics And Ecology 19(2): 111-116.

Zinkel, D. F. and T. V. Magee (1991). Resin acids of Pinus ponderosa needles. Phytochemistry 30(3): 845-848.

Belden, S. E., G. E. Schuman, et al. (1990). Salinity and moisture responses in wood residue amended bentonite mine spoil. Soil Science 150(6): 874-882.

Bull, E. L., A. L. Wright, et al. (1990). Nesting habitat of flammulated owls in Oregon (USA). Journal Of Raptor Research 24(3): 52-55.

Burr, K. E., R. W. Tinus, et al. (1990). Comparison of three cold hardiness tests for conifer seedlings. Tree Physiology 6(4): 351-370.

Bytnerowicz, A., M. Poth, et al. (1990). Effects of photochemical smog and mineral nutrition on Ponderosa pine seedlings. Environmental Pollution 67(3): 233-248.

Dunbar, C. S. and M. R. Wagner (1990). Distribution of ponderosa pine (Pinus ponderosa) feeding sawflies (Hymenoptera: Diprionidae) in the USA and Canada. Entomological News 101(5): 266-272.

Fenn, M. E., P. H. Dunn, et al. (1990). Black stain root disease in ozone-stressed ponderosa pine. Plant Disease 74(6): 426-430.

Hoy, J. B. (1990). Long-term effects of lindane on the oribatid community in a pine plantation. Environmental Entomology 19(4): 898-900.

Keane, R. E., S. F. Arno, et al. (1990). Simulating cumulative fire effects in ponderosa pine and Douglas-fir forests. Ecology 71(1): 189-203.

Lopushinsky, W. and T. A. Max (1990). Effect of soil temperature on root and shoot growth and on budburst timing in conifer seedling transplants. New Forests 4(2): 107-124.

Nickrent, D. L. and T. L. Butler (1990). Allozymic relationships of Arceuthobium campylopodum and allies in California (USA). Biochemical Systematics And Ecology 18(4): 253-266.

Niebling, C. R. and M. T. Conkle (1990). Diversity of Washoe pine and comparisons with allozymes of ponderosa pine races. Canadian Journal Of Forest Research 20(3): 298-308.

Norton, J. M., J. L. Smith, et al. (1990). Carbon flow in the rhizosphere of ponderosa pine seedlings. Soil Biology And Biochemistry 22(4): 449-456.

Pierson, E. A. and R. N. Mack (1990). The population biology of Bromus tectorum in forests: Effect of disturbance, grazing, and litter on seedling establishment and reproduction. Oecologia 84(4): 526-533.

Pierson, E. A. and R. N. Mack (1990). The population biology of Bromus tectorum in forests: Distinguishing the opportunity for dispersal from environmental restriction. Oecologia 84(4): 519-525.

Rehfeldt, G. E. (1990). Genetic differentiation among populations of Pinus ponderosa from the upper Colorado River Basin (USA). Botanical Gazette 151(1): 125-137.

Sieg, C. H. and D. M. Becker (1990). Nest-site habitat selected by merlins in southeastern Montana (USA). Condor 92(3): 688-694.

Steuter, A. A., B. Jasch, et al. (1990). Woodland/grassland boundary changes in the Middle Niobrara Valley of Nebraska identified by delta carbon-13 values of soil organic matter. American Midland Naturalist 124(2): 301-308.

Taylor, K. L. and R. W. Fonda (1990). Woody fuel structure and fire in subalpine fir forests, Olympic National Park, Washington (USA). Canadian Journal Of Forest Research 20(2): 193-199.

Thier, R. W. and M. A. Marsden (1990). Vertical growth response of ponderosa pine infested by western pine shoot borer, Eucosma sonomana Kearfott (Lepidoptera: Olethreutidae). Canadian Entomologist 122(3-4): 343-348.

Tisdale, R. A. and M. R. Wagner (1990). Effects of photoperiod, temperature, and humidity on oviposition and egg development of Neodiprion fulviceps (Hymenoptera: Diprionidae) on cut branches of ponderosa pine. Environmental Entomology 19(3): 456-458.

Tuskan, G. A., W. A. Sargent, et al. (1990). Influence of plant growth regulators, basal media and carbohydrate levels on the in vitro development of Pinus ponderosa (Dougl. ex Law.) cotyledon explants. Plant Cell Tissue And Organ Culture 20(1): 47-52.

Ustin, S. L. and B. Curtiss (1990). Spectral characteristics of ozone-treated conifers. Environmental And Experimental Botany 30(3): 293-308.

Vance, N. C. and J. B. Zaerr (1990). Analysis by high-performance liquid chromatography of free amino acids extracted from needles of drought-stressed and shaded Pinus ponderosa seedlings. Physiologia Plantarum 79(1): 23-30.

Wagner, M. R. and D. P. Frantz (1990). Influence of induced water stress in ponderosa pine on pine sawflies. Oecologia 83(4): 452-457.

With, K. A. and M. L. Morrison (1990). Flock formation of two parids in relation to cyclical seed production in a pinyon-juniper woodland. Auk 107(3): 522-532.

Adams, R. P. and G. F. J. Edmunds (1989). A re-examination of the volatile leaf oils of Pinus ponderosa Dougl. Ex. P. Lawson using ion trap mass spectroscopy. Flavour And Fragrance Journal 4(1): 19-24.

Anthony, R. G. and F. B. Isaacs (1989). Characteristics of bald eagle nest sites in Oregon (USA). Journal Of Wildlife Management 53(1): 148-159.

Burr, K. E., R. W. Tinus, et al. (1989). Relationships among cold hardiness, root growth potential and bud dormancy in three conifers. Tree Physiology 5(3): 291-306.

Bytnerowicz, A., D. M. Olszyk, et al. (1989). Effects of air filtration on concentration and deposition of gaseous and particulate air pollutants in open-top field chambers. Journal Of Environmental Quality 18(3): 268-273.

Bytnerowicz, A., D. M. Olszyk, et al. (1989). Effects of photochemical smog on growth, injury, and gas exchange of pine seedlings. Canadian Journal Of Botany 67(7): 2175-2181.

Delucia, E. H. and S. A. Heckathorn (1989). The effect of soil drought on water-use efficiency in a contrasting Great Basin desert and Sierran montane species. Plant Cell And Environment 12(9): 935-940.

Delucia, E. H., W. H. Schlesinger, et al. (1989). Edaphic limitations to growth and photosynthesis in Sierran and Great Basin (USA) vegetation. Oecologia 78(2): 184-190.

Doescher, P. S., S. D. Tesch, et al. (1989). Water relations and growth of conifer seedlings during three years of cattle grazing on a southwest Oregon (USA) plantation. Northwest Science 63(5): 232-240.

Doguwa, S. I. (1989). On second order neighborhood analysis of mapped point patterns. Biometrical Journal 31(4): 451-459.

Ellis, D. D. and D. E. Bilderback (1989). Temporal competence of embryonic Pinus ponderosa cotyledons to form multiple buds in vitro. American Journal Of Botany 76(3): 348-355.

Filip, G. M., L. D. Bryant, et al. (1989). Mass movement of river ice causes severe tree wounds along the Grande Ronde River in northeastern Oregon (USA). Northwest Science 63(5): 211-213.

Grace, J. K., D. L. Wood, et al. (1989). Behavior and survival of Reticulitermes hesperus banks (Isoptera: Rhinotermitidae) on selected sawdusts and wood extracts. Journal Of Chemical Ecology 15(1): 129-140.

Hardegree, S. P. (1989). Errors in the estimation of pre-excision plant water potential. Irrigation Science 10(4): 321-330.

Hardegree, S. P. (1989). Discrepancies between water potential isotherm measurements on Pinus ponderosa seedling shoots: Xylem hysteresis and apoplasmic osmotic potentials. Plant Cell And Environment 12(1): 57-62.

Hardegree, S. P. (1989). Xylem water holding capacity as a source of error in water potential estimates made with the pressure chamber and thermocouple psychrometer. American Journal Of Botany 76(3): 356-360.

Harrington, T. C., J. J. Worrall, et al. (1989). Compatibility among host-specialized isolates of Heterobasidion annosum from western North America. Phytopathology 79(3): 290-296.

James, L. F., R. E. Short, et al. (1989). Pine needle abortion in cattle: A review and report of 1973-1984 research. Cornell Veterinarian 79(1): 39-52.

McNabb, D. H. and S. D. Hobbs (1989). Shallow tillage fails to increase 5-year growth of ponderosa pine seedlings. Northwest Science 63(5): 241-245.

Morris, J. W., L. A. Castle, et al. (1989). Efficacy of different Agrobacterium tumefaciens strains in transformation of pinaceous gymnosperms. Physiological And Molecular Plant Pathology 34(5): 451-462.

Neufeld, H. S., D. M. Durall, et al. (1989). A rootbox for quantitative observations on intact entire root systems. Plant And Soil 117(2): 295-298.

Parker, A. J. (1989). Forest/environment relationships in Yosemite National Park, California, USA. Vegetatio 82(1): 41-54.

Pasek, J. E. and M. E. Dix (1989). Life history of a ponderosa pine coneworm, Dioryctria auranticella (Lepidoptera: Pyralidae). Journal Of Economic Entomology 82(3): 879-885.

Perry, D. A., H. Margolis, et al. (1989). Ectomycorrhizal mediation of competition between coniferous tree species. New Phytologist 112(4): 501-512.

Pyle, M. M. and R. P. Adams (1989). In situ preservation of DNA in plant specimens. Taxon 38(4): 576-581.

Ross, D. W. (1989). Western pine shoot borer (Lepidoptera: Olethreutidae) response to site preparation in ponderosa pine plantations. Journal Of Economic Entomology 82(2): 543-547.

Schlesinger, W. H., E. H. Delucia, et al. (1989). Nutrient-use efficiency of woody plants on contrasting soils in the western Great Basin, Nevada (USA). Ecology 70(1): 105-113.

Stark, N., D. Essig, et al. (1989). Nutrient concentration in Pinus ponderosa and Pseudotsuga menziesii xylem sap from acid and alkaline soils. Soil Science 148(2): 124-131.

Sumaryono, G. C. (1989). Differential tolerance of woody nursery crop seedlings to napropamide. Weed Technology 3(4): 584-589.

Uresk, D. W. and K. E. Severson (1989). Understory-overstory relationships in ponderosa pine forests, Black Hills, South Dakota (USA). Journal Of Range Management 42(3): 203-208.

Verbyla, D. L. and R. F. Fisher (1989). Effect of aspect on ponderosa pine height and diameter growth. Forest Ecology And Management 27(2): 93-98.

Verbyla, D. L. and R. F. Fisher (1989). An alternative approach to conventional soil-site regression modeling. Canadian Journal Of Forest Research 19(2): 179-184.

White, D. E. and M. Newton (1989). Competitive interactions of whiteleaf manzanita, herbs, Douglas-fir, and ponderosa pine in southwest Oregon (USA). Canadian Journal Of Forest Research 19(2): 232-238.

Baker, G. (1988). Seasonal growth characteristics of red beech, Corsican pine, ponderosa pine, radiata pine, and Douglas fir nursery seedlings. New Zealand Forestry 32(4): 22-24.

Bull, E. L., M. G. Henjum, et al. (1988). Nesting and foraging habitat of Great Gray Owls. Journal Of Raptor Research 22(4): 107-115.

Carlson, C. E., W. W. McCaughey, et al. (1988). Relations among stand structure, dispersal of second-instar western spruce budworm, defoliation, and height growth of young conifers. Canadian Journal Of Forest Research 18(6): 794-800.

Delucia, E. H., W. H. Schlesinger, et al. (1988). Water relations and the maintenance of Sierran conifers on hydrothermally altered rock. Ecology 69(2): 303-311.

Dix, M. E. and E. W. Underhill (1988). Sex pheromone of Retinia metallica (Busck) (Lepidoptera: Tortricidae): Identification and field studies. Canadian Entomologist 120(8-9): 721-726.

Houpis, J. L. J., K. A. Surano, et al. (1988). Chlorophyll and carotenoid concentrations in two varieties of Pinus ponderosa seedlings subjected to long-term elevated carbon dioxide. Tree Physiology 4(2): 187-193.

Kufeld, R. C., D. C. Bowden, et al. (1988). Habitat selection and activity patterns of female mule deer in the Front Range, Colorado (USA). Journal Of Range Management 41(6): 515-522.

Lanner, R. M. and K. F. Connor (1988). Control of shoot elongation in ponderosa pine: Relative roles of apical and axillary meristems. Tree Physiology 4(3): 233-244.

Lowary, T. L. and G. N. Richards (1988). Vacuum pyrolysis of bark from Pinus ponderosa. Journal Of Wood Chemistry And Technology 8(3): 393-412.

McLeod, S. D. and S. W. Running (1988). Comparing site quality indices and productivity in ponderosa pine stands of western Montana (USA). Canadian Journal Of Forest Research 18(3): 346-352.

Mitchell, R. G. and L. L. Sower (1988). Phenology and heat accumulation as field guides for the seasonal history of the western pine shoot borer (Lepidoptera: Olethreutidae). Journal Of Economic Entomology 81(1): 286-289.

Moir, W. H. and J. H. Dieterich (1988). Old-growth ponderosa pine from succession in pine-bunchgrass forests in Arizona and New Mexico (USA). Natural Areas Journal 8(1): 17-24.

Muir, P. S. and T. V. Armentano (1988). Evaluating oxidant injury to foliage of Pinus ponderosa: A comparison of methods. Canadian Journal Of Forest Research 18(5): 498-505.

Petersen, T. D. (1988). Effects of interference from Calamagrostis rubescens on size distributions in stands of Pinus ponderosa. Journal Of Applied Ecology 25(1): 265-272.

Peterson, D. L. and M. J. Arbaugh (1988). An evaluation of the effects of ozone injury on radial growth of ponderosa pine (Pinus ponderosa) in the Southern Sierra Nevada (California, USA). Japca 38(7): 921-927.

Pohlman, A. A. and J. G. McColl (1988). Soluble organics from forest litter and their role in metal dissolution. Soil Science Society Of America Journal 52(1): 265-271.

Ramsay, C. A. and G. E. Long (1988). Survival of larch casebearers, Coleophora laricella (Hubner), on foliage of eight seedling conifers. Canadian Entomologist 120(11): 993-996.

Rygiewicz, P. T., S. L. Miller, et al. (1988). A root-mycocosm for growing ectomycorrhizal hyphae apart from host roots while maintaining symbiotic integrity. Plant And Soil 109(2): 281-284.

Severson, K. E. and D. W. Uresk (1988). Influence of ponderosa pine overstory on forage quality in the Black Hills, South Dakota (USA). Great Basin Naturalist 48(1): 78-82.

Vora, R. S. (1988). A comparison of the spherical densitometer and ocular methods of estimating canopy cover. Great Basin Naturalist 48(2): 224-227.

Weiser, R. L. and S. J. Wallner (1988). Freezing woody plant stems produces acoustic emissions. Journal Of The American Society For Horticultural Science 113(4): 636-639.

Anderson, L., C. E. Carlson, et al. (1987). Forest fire frequency and western spruce budworm outbreaks in western Montana (USA). Forest Ecology And Management 22(3-4): 251-260.

Becker, D. M. and C. Hullsieg (1987). Home range and habitat utilization of breeding male merlins, Falco columbarius, in southeastern Montana (USA). Canadian Field Naturalist 101(3): 398-403.

Bekoff, M., A. C. Scott, et al. (1987). Nonrandom nest-site selection in evening grosbeaks. Condor 89(4): 819-829.

Brown, T. C. (1987). Production and cost of scenic beauty: Examples for a ponderosa pine forest. Forest Science 33(2): 394-410.

Bull, E. L. (1987). Ecology of the pileated woodpecker in northeastern Oregon (USA). Journal Of Wildlife Management 51(2): 472-481.

Delkov, N., S. Yurukov, et al. (1987). Investigations of certain gymnospermous exotic species in the botanical garden of the Higher Institute of Forest Engineering. Gorskostopanska Nauka 24(6): 21-25.

Elliott, K. J. and A. S. White (1987). Competitive effects of various grasses and forbs on ponderosa pine seedlings. Forest Science 33(2): 356-366.

Ellis, D. D. and R. C. Judd (1987). SDS-PAGE analysis of bud-forming cotyledons of Pinus ponderosa. Plant Cell Tissue And Organ Culture 11(1): 57-66.

Fisher, R. F., M. J. Jenkins, et al. (1987). Fire and the prairie-forest mosaic of Devils Tower National Monument (Wyoming, (USA). American Midland Naturalist 117(2): 250-257.

Getis, A. and J. Franklin (1987). Second-order neighborhood analysis of mapped point patterns. Ecology 68(3): 473-477.

Haight, R. G. (1987). Evaluating the efficiency of even-aged and uneven-aged stand management. Forest Science 33(1): 116-134.

Hobbs, S. D., S. G. Stafford, et al. (1987). Undercutting conifer seedlings: Effect on morphology and field performance on droughty sites. Canadian Journal Of Forest Research 17(1): 40-46.

Isaacs, F. B. and R. G. Anthony (1987). Abundance, foraging, and roosting of bald eagles wintering in the Harney Basin, Oregon (USA). Northwest Science 61(2): 114-121.

Kienast, F., F. H. Schweingruber, et al. (1987). Tree-ring studies on conifers along ecological gradients and the potential of single-year analyses. Canadian Journal Of Forest Research 17(7): 683-696.

Kim, K. S., S. H. Hong, et al. (1987). Resistance test of 13 pine species and race identification for pine gall midge. Research Report Of The Institute Of Forest Genetics(23): 34-37.

Lutz, R. S. and J. A. Crawford (1987). Seasonal use of roost sites by Merriam's wild turkey hens and hen-poult flocks in Oregon (USA). Northwest Science 61(3): 174-178.

McColl, J. G. and M. K. Firestone (1987). Cumulative effects of simulated acid rain on soil chemical and microbial characteristics and conifer seedling growth. Soil Science Society Of America Journal 51(3): 794-800.

McCullough, D. G. and M. R. Wagner (1987). Evaluation of four techniques to assess vigor of water-stressed ponderosa pine. Canadian Journal Of Forest Research 17(2): 138-145.

McCullough, D. G. and M. R. Wagner (1987). Influence of watering and trenching ponderosa pine on a pine sawfly. Oecologia 71(3): 382-387.

McKee, A. and D. Knutson (1987). A disjunct ponderosa pine stand in southeastern Oregon (USA). Great Basin Naturalist 47(1): 163-167.

Megahan, W. F. and R. Steele (1987). An approach for predicting snow damage to ponderosa pine plantations. Forest Science 33(2): 485-503.

Merrill, L. M., F. G. Hawksworth, et al. (1987). Frequency and severity of ponderosa pine dwarf mistletoe in relation to habitat type and topography in Colorado (USA). Plant Disease 71(4): 342-344.

Oren, R., R. H. Waring, et al. (1987). Twenty-four years of ponderosa pine growth in relation to canopy leaf area and understory competition. Forest Science 33(2): 538-547.

Owen, D. R., K. Q. J. Lindahl, et al. (1987). Pathogenicity of fungi isolated from Dendroctonus valens, Dendroctonus brevicomis, and Dendroctonus ponderosae to ponderosa pine seedlings. Phytopathology 77(4): 631-636.

Pederson, J. C., R. C. Farentinos, et al. (1987). Effects of logging on habitat quality and feeding patterns of Abert squirrels. Great Basin Naturalist 47(2): 252-258.

Schowalter, T. D. (1987). Abundance and distribution of Lygus hesperus (Heteroptera: Miridae) in two conifer nurseries in western Oregon (USA). Environmental Entomology 16(3): 687-690.

Steinauer, E. M. and T. B. Bragg (1987). Ponderosa pine (Pinus ponderosa) invasion of Nebraska Sandhills Prairie (USA). American Midland Naturalist 118(2): 358-365.

Tiedemann, A. R. (1987). Combustion losses of sulfur from forest foliage and litter. Forest Science 33(1): 216-223.

Vose, J. M. and A. S. White (1987). Processes of understory seedling recruitment 1 year after prescribed fire in an Arizona (USA) ponderosa pine community. Canadian Journal Of Botany 65(11): 2280-2290.

Wallace, M. C. and P. R. Krausman (1987). Elk, mule deer, and cattle habitats in central Arizona (USA). Journal Of Range Management 40(1): 80-83.

Andariese, S. W. and W. W. Covington (1986). Biomass estimation for four common grass species in northern Arizona (USA) ponderosa pine (Pinus ponderosa). Journal Of Range Management 39(5): 472-473.

Andraiese, S. W. and W. W. Covington (1986). Changes in understory production for three prescribed burns of different ages in ponderosa pine (Pinus ponderosa). Forest Ecology And Management 14(3): 193-204.

Chen, Z. K. and F. H. Wang (1986). Late embryogeny of Pinus bungeana. Acta Phytotaxonomica Sinica 24(6): 458-463.

Covington, W. W. and S. S. Sackett (1986). Effect of periodic burning on soil nitrogen concentrations in ponderosa pine (Pinus ponderosa). Soil Science Society Of America Journal 50(2): 452-457.

Fielder, P. C. and R. G. Starkey (1986). Bald eagle (Haliaeetus leucocephalus) perch-sites in eastern Washington (USA). Northwest Science 60(3): 186-190.

Fritts, H. C. and W. Xiangding (1986). A comparison between response-function analysis and other regression techniques. Tree Ring Bulletin 46: 31-46.

Froehlich, H. A., D. W. R. Miles, et al. (1986). Growth of young Pinus ponderosa and Pinus contorta on compacted soil in Central Washington (USA). Forest Ecology And Management 15(4): 285-294.

Harrington, T. C. and F. W. J. Cobb (1986). Varieties of Verticicladiella wageneri. Mycologia 78(4): 562-567.

Hopkins, W. E. (1986). A comparison of the growth basal area stocking level curve to a number of curves developed from south central Oregon (USA) tree data. Canadian Journal Of Forest Research 16(3): 508-512.

Hung, L. L. L. and R. Molina (1986). Use of the ectomycorrhizal fungus Laccaria laccata in forestry: III. Effects of commercially produced inoculum on container-grown Douglas-fir (Pseudotsuga menziesii) and ponderosa pine (Pinus ponderosa) seedlings. Canadian Journal Of Forest Research 16(4): 802-806.

Karenlampi, L. (1986). Relationships between macroscopic symptoms of injury and cell structural changes in needles of ponderosa pine exposed to air pollution in California (USA). Annales Botanici Fennici 23(3): 255-264.

Kovacic, D. A., D. M. Swift, et al. (1986). Immediate effects of prescribed burning on mineral soil nitrogen in ponderosa pine (Pinus ponderosa) of New Mexico (USA). Soil Science 141(1): 71-76.

Lanini, W. T. and S. R. Radosevich (1986). Response of three conifer species to site preparation and shrub control. Forest Science 32(1): 61-77.

Lopushinsky, W. (1986). Seasonal and diurnal trends of heat pulse velocity in Douglas-fir (Pseudotsuga menziesii var. glauca) and ponderosa pine (Pinus ponderosa). Canadian Journal Of Forest Research 16(4): 814-821.

Mackey, D. L. (1986). Brood habitat of Merriam's turkeys (Meleagris gallopavo merriami) in south-central Washington (USA). Northwest Science 60(2): 108-112.

Merrill, W., N. Wenner, et al. (1986). Resistance of Pinus ponderosa to Endocronartium harknessii in Pennsylvania (USA). Plant Disease 70(4): 317-320.

Mitchell, O. T. and R. P. Guries (1986). Genetic load and heterozygosity in the Pinaceae. Canadian Journal Of Genetics And Cytology 28(6): 942-946.

Rehfeldt, G. E. (1986). Adaptive variation in Pinus ponderosa from Intermountain Regions: II. Middle Columbia River System (USA). U S Forest Service Research Paper Int(373): 1-9.

Rehfeldt, G. E. (1986). Adaptive variation in Pinus ponderosa from intermountain regions: I. Snake River and Salmon River basins (Idaho, USA). Forest Science 32(1): 79-92.

Rice, P. M., C. E. Carlson, et al. (1986). Basal injury syndrome of Pinus needles. Canadian Journal Of Botany 64(3): 632-642.

Rogers, J. M., R. A. Susott, et al. (1986). Chemical composition of forest fuels affecting their thermal behavior. Canadian Journal Of Forest Research 16(4): 721-726.

Ross, D. W., W. Scott, et al. (1986). Effects of site preparation on ponderosa pine (Pinus ponderosa), associated vegetation, and soil properties in south central Oregon (USA). Canadian Journal Of Forest Research 16(3): 612-618.

Seidel, K. W. (1986). Tolerance of seedlings of ponderosa pine (Pinus ponderosa), Douglas-fir (Pseudotsuga menziesii), grand fir (Abies grandis), and Engelmann spruce (Picea engelmanni) for high temperatures. Northwest Science 60(1): 1-7.

Shainsky, L. J. and S. R. Radosevich (1986). Growth and water relations of Pinus ponderosa seedlings in competitive regimes with Arctostaphylos patula seedlings. Journal Of Applied Ecology 23(3): 957-966.

Smith, D. R. and M. R. Wagner (1986). Recognition of two species in the pine (Pinus ponderosa) feeding Neodiprion fulviceps complex (Hymenoptera: Diprionidae) of western USA. Proceedings Of The Entomological Society Of Washington 88(2): 215-220.

Su, N. Y. and M. Tamashiro (1986). Wood-consumption rate and survival of the formosan subterranean termite (Coptotermes formosanus) (Isoptera: Rhinotermitidae) when fed one of six woods used commercially in Hawaii (USA). Proceedings Of The Hawaiian Entomological Society 26: 109-114.

Szaro, R. C. and R. P. Balda (1986). Relationships among weather, habitat structure, and ponderosa pine (Pinus ponderosa) forest birds. Journal Of Wildlife Management 50(2): 253-260.

Wagner, M. R., D. C. McCullough, et al. (1986). Life history of Neodiprion fulviceps, a ponderosa pine (Pinus ponderosa) feeding sawfly (Hymenoptera: Diprionidae). Proceedings Of The Entomological Society Of Washington 88(2): 221-226.

Wickman, B. E., K. W. Seidel, et al. (1986). Natural regeneration 10 years after a Douglas-fir tussock moth outbreak in northeastern Oregon (USA). U S Forest Service Research Paper Pnw(370): 1-15.

Wyant, J. G., P. N. Omi, et al. (1986). Fire induced tree mortality in a Colorado (USA) ponderosa pine (Pinus ponderosa) and Douglas-fir (Pseudotsuga menziesii) stand. Forest Science 32(1): 49-59.

Barnosky, C. W. (1985). Late quaternary vegetation in the Southwestern Columbia Basin, Washington (USA). Quaternary Research 23(1): 109-122.

Erickson, H. E., R. L. Edmonds, et al. (1985). Decomposition of logging residues in Douglas-fir (Pseudotsuga menziesii), western hemlock (Tsuga heterophylla), Pacific silver fir (Abies amabilis), and ponderosa pine (Pinus ponderosa) ecosystems. Canadian Journal Of Forest Research 15(5): 914-921.

Franklin, J., J. Michaelsen, et al. (1985). Spatial analysis of density dependent pattern in coniferous forest stands. Vegetatio 64(1): 29-36.

Franzreb, K. E. (1985). Foraging ecology of brown creepers (Certhia americana) in a mixed-coniferous forest. Journal Of Field Ornithology 56(1): 9-16.

Gibson, K. E., M. D. McGregor, et al. (1985). Demonstration of the effectiveness of basal area cutting to reduce tree killing by the mountain pine beetle (Dendroctonus ponderosae) in ponderosa pine (Pinus ponderosa), Crow and northern Cheyenne Indian Reservations, Montana (USA), 1984: Establishment report. U S Forest Service Northern Region Cooperative Forestry And Pest Management Report(85-8): 1-9.

Graham, V. K., G. M. Blake, et al. (1985). Heritability estimates for Pinus ponderosa of the Inland Empire (USA). Silvae Genetica 34(2-3): 95-100.

Hodges, R. W. (1985). A new species of Exoteleia (Gelechiidae) reared from ponderosa pine (Pinus ponderosa). Journal Of The Lepidopterists' Society 39(2): 139-144.

Jacobs, B. F. (1985). A middle Wisconsin pollen record from Hay Lake, Arizona (USA). Quaternary Research 24(1): 121-130.

James, R. L. (1985). Studies of Fusarium associated with containerized conifer seedling diseases: (2). Diseases of western larch (Larix occidentalis), Douglas-fir (Pseudotsuga menziesii), grand fir (Abies grandis), subalpine fir (Abies lasiocarpa), and ponderosa pine (Pinus ponderosa) seedlings at the USA Department of Agriculture Forest Service Nursery, Coeur D'Alene, Idaho (USA). U S Forest Service Northern Region Cooperative Forestry And Pest Management Report(85-12): 1-7.

Johnson, D. W., G. W. Peterson, et al. (1985). Diplodia tip blight of ponderosa pine (Pinus ponderosa) in the Black Hills of South Dakota (USA). Plant Disease 69(2): 136-137.

Kinzer, H. G. and J. M. Reeves (1985). Chemical treatments for brood control and suppression of Dendroctonus adjunctus attacks on ponderosa pine (Pinus ponderosa). Southwestern Entomologist 10(4): 244-252.

Klemmedson, J. O., C. E. Meier, et al. (1985). Needle decomposition and nutrient release in ponderosa pine (Pinus ponderosa) ecosystems. Forest Science 31(3): 647-660.

Kovacic, D. A., M. I. Dyer, et al. (1985). Understory biomass in ponderosa pine (Pinus ponderosa) following mountain pine beetle (Dendroctonus ponderosae) infestation. Forest Ecology And Management 13(1-2): 53-68.

Ledgard, N. J. and M. C. Belton (1985). Exotic trees in the Canterbury high country (New Zealand). New Zealand Journal Of Forestry Science 15(3): 298-323.

Ledgard, N. J. and M. C. Belton (1985). Diversification and opportunities in forestry in the South Island (New Zealand) high country. New Zealand Journal Of Forestry 30(1): 133-143.

Linhart, Y. B. and J. B. Mitton (1985). Relationships among reproduction, growth rates, and protein heterozygosity in ponderosa pine (Pinus ponderosa). American Journal Of Botany 72(2): 181-184.

Merrill, L. M., F. G. Hawksworth, et al. (1985). Evaluation of a roadside survey procedure for dwarf mistletoe (Arceuthobium vaginatum ssp. cryptopodum) on ponderosa pine (Pinus ponderosa) in Colorado (USA). Plant Disease 69(7): 572-573.

Miller, R. F., A. V. Morgan, et al. (1985). Pre-Vashon fossil Coleoptera of Fraser age from the Fraser Lowland, British Columbia (Canada). Canadian Journal Of Earth Sciences 22(4): 498-505.

Mitchell, J. E. and R. T. Rodgers (1985). Food habits and distribution of cattle on a forest and pasture range in northern Idaho (USA). Journal Of Range Management 38(3): 214-220.

Otvos, I. S. and R. W. Stark (1985). Arthropod food of some forest-inhabiting birds. Canadian Entomologist 117(8): 971-990.

Patton, D. R., R. L. Wadleigh, et al. (1985). The effects of timber harvesting on the Kaibab squirrel (Sciurus aberti kaibabensis). Journal Of Wildlife Management 49(1): 14-19.

Pederson, J. C. and B. L. Welch (1985). Comparison of ponderosa pines (Pinus ponderosa) as feed and nonfeed trees for Abert squirrels (Sciurus aberti). Journal Of Chemical Ecology 11(2): 149-158.

Stark, N. and C. Spitzner (1985). Xylem sap analysis for determining the nutrient status and growth of Pinus ponderosa. Canadian Journal Of Forest Research 15(5): 783-790.

Tilden, P. E. and W. D. Bedard (1985). Field response of Dendroctonus brevicomis to exo-brevicomin, frontalin and myrcene released at 2 proportions and 3 levels. Journal Of Chemical Ecology 11(6): 757-766.

Uresk, D. W. and W. W. Paintner (1985). Cattle diets in a ponderosa pine forest in the northern Black Hills (USA). Journal Of Range Management 38(5): 440-442.

Vance, N. C. and S. W. Running (1985). Summer climatic influences on Pinus ponderosa planted on mined lands in eastern Montana (USA). Reclamation & Revegetation Research 4(2): 129-144.

Wagner, M. R. and P. D. Evans (1985). Defoliation increases nutritional quality and allelochemics of pine seedlings. Oecologia 67(2): 235-237.

Wagner, M. R. and R. L. Mathiasen (1985). Dwarf mistletoe (Arceuthobium vaginatum ssp. eryptopodium) and pandora moth (Coloradia pandoro pandora) interaction and its contribution to Ponderosa pine (Pinus ponderosa) mortality in Arizona (USA). Great Basin Naturalist 45(3): 423-426.

White, A. S. (1985). Presettlement regeneration patterns in a southwestern (USA) ponderosa pine (Pinus ponderosa) stand. Ecology 66(2): 589-594.

Wilks, D. S., P. L. Gersper, et al. (1985). Association of soil moisture with spread of Ceratocystis wageneri in ponderosa pine disease centers. Plant Disease 69(3): 206-208.

Wood, G. B., H. T. Schreuder, et al. (1985). Comparison of a model-based sampling strategy with point-Poisson sampling on a timber management area in the Arapahoe-Roosevelt National Forest in Colorado (USA). Canadian Journal Of Forest Research 15(1): 83-86.

Beckman, J. S. and J. B. Mitton (1984). Peroxidase allozyme differentiation among successional stands of ponderosa pine (Pinus ponderosa var. scopulorum). American Midland Naturalist 112(1): 43-49.

Bjugstad, A. J. (1984). Shrub and tree establishment on coal soils in northern High Plains, USA. Minerals And The Environment 6(3): 127-130.

Ellis, D. D. and D. E. Bilderback (1984). Multiple bud formation by cultured embryos of Pinus ponderosa. Journal Of Plant Physiology 115(3): 201-204.

Grubb, T. G. (1984). Winter activity of bald eagles (Haliaeetus leucocephalus) at Navaho Lake, New Mexico (USA). Southwestern Naturalist 29(3): 335-342.

Hopkins, R. B. (1984). Ovenbirds (Seiurus aurocapillus) at the periphery of their range in western North Dakota (USA). Prairie Naturalist 16(4): 167-176.

Mackenzie, S. L. and K. R. Holme (1984). Analysis of conifer leaf free amino acids by gas-liquid chromatography. Journal Of Chromatography 299(2): 387-396.

Madany, M. H. and N. E. West (1984). Vegetation of 2 relict mesas in Zion National Park (Utah, USA). Journal Of Range Management 37(5): 456-461.

Marx, D. H., C. E. Cordell, et al. (1984). Commercial vegetative inoculum of Pisolithus tinctorius and inoculation techniques for development of ectomycorrhizae on bare-root tree seedlings. Forest Science Monograph(25): 1-101.

Niering, W. A. and C. H. Lowe (1984). Vegetation of the Santa Catalina Mountains (Arizona, USA): Community types and dynamics. Vegetatio 58(1): 3-28.

Peterson, G. W. (1984). Resistance to Dothistroma pini within geographic seed sources of Pinus ponderosa. Phytopathology 74(8): 956-960.

Schmidt, J. M., J. C. Mitchell, et al. (1984). Insect damage, cone dimensions and seed production in crown levels of ponderosa pine (Pinus ponderosa). Great Basin Naturalist 44(4): 575-578.

Shea, P. J., M. I. Haverty, et al. (1984). Effectiveness of fenitrothion and permethrin for protecting ponderosa pine (Pinus ponderosa) trees from attack by the western pine beetle (Dendroctonus brevicomis). Journal Of The Georgia Entomological Society 19(4): 427-433.

Smith, W. K., D. R. Young, et al. (1984). Autumn stomatal closure in 6 conifer species of the central Rocky Mountains (USA). Oecologia 63(2): 237-242.

Sower, L. L., G. E. Daterman, et al. (1984). Surveying populations of western pine shoot borers (Eucosma sonomana) (Lepidoptera: Olethreutidae). Journal Of Economic Entomology 77(3): 715-719.

Sower, L. L. and M. D. Shorb (1984). Effect of western pine shoot borer (Eucosma sonomana) (Lepidoptera: Olethreutidae) on vertical growth of ponderosa pine (Pinus ponderosa). Journal Of Economic Entomology 77(4): 932-935.

Van, D. T. R., J. L. Betancourt, et al. (1984). Biogeographic implications of a packrat midden sequence from the Sacramento Mountains, South-Central New Mexico, (USA). Quaternary Research 22(3): 344-360.

Woods, J. H., G. M. Blake, et al. (1984). Using isozyme analysis to aid in selecting genetically superior ponderosa pine (Pinus ponderosa) for coal-mine spoil reclamation. Northwest Science 58(4): 262-281.

Yandell, K. L. (1984). Sound production of Dendroctonus ponderosae (Coleoptera, Scolytidae): A comparison of populations from 3 host pines in Oregon (USA). Zeitschrift Fuer Angewandte Entomologie 97(2): 180-187.

Ryker, L. C. and K. L. Yandell (1983). Effect of verbenone on aggregation of Dendroctonus ponderosae (Coleoptera, Scolytidae) to synthetic attractant. Zeitschrift Fuer Angewandte Entomologie 96(5): 452-459.

Gifford, D. J. (1808). An electrophoretic analysis of the seed proteins from Pinus monticola and eight other species of pine. Canadian Journal Of Botany 66(9): 1808-1812.

Reich, R. M., P. W. J. Mielke, et al. (1808). Spatial analysis of ponderosa pine trees infected with dwarf mistletoe. Canadian Journal Of Forest Research 21(12): 1808-1815.

Gleason, J. F., M. Duryea, et al. (1766). Nursery and field fertilization of 2 plus 0 ponderosa pine seedlings: The effect on morphology, physiology, and field performance. Canadian Journal Of Forest Research 20(11): 1766-1772.

Kovacic, D. A., J. T. V. St, et al. (1755). Lack of vesicular-arbuscular mycorrhizal inoculum in a ponderosa pine (Pinus ponderosa) forest. Ecology 65(6): 1755-1759.

Maze, J., R. K. Scagel, et al. (1733). Patterns of within-tree variation in a population of Pinus ponderosa. Canadian Journal Of Botany 64(8): 1733-1738.

Snyder, M. A. (1730). Selective herbivory by Abert's squirrel mediated by chemical variability in Ponderosa pine. Ecology 73(5): 1730-1741.

Kercher, J. R. and M. C. Axelrod (1725). A process model of fire ecology and succession in a mixed-conifer forest. Ecology 65(6): 1725-1742.

Blake, E. A., M. R. Wagner, et al. (1691). Relative effect of seed and cone insects on ponderosa pine in northern Arizona (USA). Journal Of Economic Entomology 82(6): 1691-1694.

Miller, K. K. and M. R. Wagner (1682). Effect of pandora moth (Lepidoptera: Saturniidae) defoliation on growth on ponderosa pine in Arizona (USA). Journal Of Economic Entomology 82(6): 1682-1686.

Bremner, J. M. and G. W. McCarty (1630). Effects of terpenoids on nitrification in soil. Soil Science Society Of America Journal 52(6): 1630-1633.

Klemmedson, J. O. (1623). Influence of oak in pine forests of central Arizona (USA) on selected nutrients of forest floor and soil. Soil Science Society Of America Journal 51(6): 1623-1628.

Petersen, T. D. and B. D. Maxwell (1620). Water stress of Pinus ponderosa in relation to foliage density of neighboring plants. Canadian Journal Of Forest Research 17(12): 1620-1622.

Ford, S. P., L. K. Christenson, et al. (1609). Effects of ponderosa pine needle ingestion on uterine vascular function in late-gestation beef cows. Journal Of Animal Science 70(5): 1609-1614.

Panter, K. E., L. F. James, et al. (1604). Ponderosa pine needle-induced parturition in cattle. Journal Of Animal Science 70(5): 1604-1608.

Fenn, M. E. and P. H. Dunn (1560). Litter decomposition across an air-pollution gradient in the San Bernardino Mountains (California, USA). Soil Science Society Of America Journal 53(5): 1560-1567.

Hamrick, J. L., H. M. Blanton, et al. (1559). Genetic structure of geographically marginal populations of ponderosa pine. American Journal Of Botany 76(11): 1559-1568.

Goheen, G. J., F. W. J. Cobb, et al. (1535). Visitation frequencies of some insect species on Ceratocystis wageneri infected and apparently healthy ponderosa pines (Pinus ponderosa). Canadian Entomologist 117(12): 1535-1544.

Agee, J. K. and J. Kertis (1520). Forest types of the North Cascades National Park Service Complex (Washington, USA). Canadian Journal Of Botany 65(7): 1520-1530.

McAlpine, R. S. (1496). Temporal variations in elliptical forest fire shapes. Canadian Journal Of Forest Research 19(11): 1496-1500.

Rehfeldt, G. E. (1491). A model of genetic variation for Pinus ponderosa in the Inland Northwest (USA): Applications in gene resource management. Canadian Journal Of Forest Research 21(10): 1491-1500.

Pierce, H. D. J., J. E. Conn, et al. (1455). Monoterpene metabolism in female mountain pine beetles, Dendroctonus ponderosae Hopkins, attacking ponderosa pine. Journal Of Chemical Ecology 13(6): 1455-1480.

Schmid, J. M., S. A. Mata, et al. (1439). Bark temperature patterns in ponderosa pine stands and their possible effects on mountain pine beetle behavior. Canadian Journal Of Forest Research 21(10): 1439-1446.

Burdon, R. D. and C. B. Low (1401). Performance of Pinus ponderosa and Pinus jeffreyi provenances in New Zealand. Canadian Journal Of Forest Research 21(9): 1401-1414.

Karenlampi, L. and J. L. J. Houpis (1381). Structural conditions of mesophyll cells of Pinus ponderosa var. scopulorum after sulfur dioxide fumigation. Canadian Journal Of Forest Research 16(6): 1381-1385.

Otrosina, W. and F. W. J. Cobb (1360). Analysis of allozymes of three distinct variants of Verticicladiella wageneri isolated from conifers in western North America. Phytopathology 77(9): 1360-1363.

Tam, S. C., G. Sposito, et al. (1320). Spectroscopic and chemical evidence of variability across a pine litter layer. Soil Science Society Of America Journal 55(5): 1320-1325.

Hoff, R. J. (1316). Resistance to western gall rust in artificially inoculated ponderosa pine. Canadian Journal Of Forest Research 21(9): 1316-1320.

Andersen, C. P., W. E. Hogsett, et al. (1288). Ozone decreases spring root growth and root carbohydrate content in ponderosa pine the year following exposure. Canadian Journal Of Forest Research 21(8): 1288-1291.

Su, N. Y., M. Tamashiro, et al. (1259). Effects of three insect growth regulators, feeding substrates, and colony origin on survival and presoldier production of the Formosan subterranean termite (Isoptera: Rhinotermitidae). Journal Of Economic Entomology 78(6): 1259-1263.

Bedard, W. D., K. Q. J. Lindahl, et al. (1249). Behavior of the western pine beetle (Dendroctonus brevicomis) during host colonization. Journal Of Chemical Ecology 11(9): 1249-1262.

Vance, N. C., D. O. Copes, et al. (1244). Differences in proteins synthesized in needles of unshaded and shaded Pinus ponderosa var. scopulorum seedlings during prolonged drought. Plant Physiology 92(4): 1244-1248.

Lieutier, F. and A. A. Berryman (1243). Preliminary histological investigations of the defense reactions of three pines to Ceratocystis clavigera and two chemical elicitors. Canadian Journal Of Forest Research 18(10): 1243-1247.

Stomp, A. M., C. Loopstra, et al. (1226). Extended host range of Agrobacterium tumefaciens in the genus Pinus. Plant Physiology 92(4): 1226-1232.

Mannan, R. W. and E. C. Meslow (1219). Bird populations and vegetation characteristics in managed and old-growth forests, northeastern Oregon (USA). Journal Of Wildlife Management 48(4): 1219-1238.

Hunt, R. S. (1157). Leptomelanconium pinicola, new combination and associated needle blight of pines. Canadian Journal Of Botany 63(6): 1157-1159.

Klemmedson, J. O., C. E. Meier, et al. (1105). Litter fall transfers of dry matter and nutrients in ponderosa pine stands. Canadian Journal Of Forest Research 20(7): 1105-1115.

Lanier, G. N., S. A. Teale, et al. (1103). Biosystematics of the genus Ips (Coleoptera: Scolytidae) in North America: Review of the Ips calligraphus group. Canadian Entomologist 123(5): 1103-1124.

Thomas, T. L. and J. K. Agee (1082). Prescribed fire effects on mixed conifer forest structure at Crater Lake, Oregon (USA). Canadian Journal Of Forest Research 16(5): 1082-1087.

Sturgeon, K. B. and J. B. Mitton (1064). Biochemical diversity of ponderosa pine (Pinus ponderosa) and predation by bark beetles (Coleoptera: Scolytidae). Journal Of Economic Entomology 79(4): 1064-1068.

Chen, N. M. and J. H. Borden (1059). Adverse effect of fenoxycarb on reproduction by the California fivespined ips, Ips paraconfusus Lanier (Coleoptera: Scolytidae). Canadian Entomologist 121(12): 1059-1068.

Clayton, J. L. and D. A. Kennedy (1041). Nutrient losses from timber harvest in the Idaho (USA) batholith. Soil Science Society Of America Journal 49(4): 1041-1049.

Monson, R. K. and M. C. Grant (1041). Experimental studies of ponderosa pine: III. Differences in photosynthesis, stomatal conductance, and water-use efficiency between two genetic lines. American Journal Of Botany 76(7): 1041-1047.

Grant, M. C., Y. B. Linhart, et al. (1033). Experimental studies of ponderosa pine: II. Quantitative genetics of morphological traits. American Journal Of Botany 76(7): 1033-1040.

Linhart, Y. B., M. C. Grant, et al. (1024). Experimental studies in ponderosa pine: I. Relationship between variation in proteins and morphology. American Journal Of Botany 76(7): 1024-1032.

Grimble, D. G. and R. C. Beckwith Temporal changes in presence of late instar Mitoura spinetorum (Lycaenidae) in eastern Oregon. Journal of the Lepidopterists' Society 47(4): 329-330. Pac. Northwest For. Range Exp. Stn., 3200 S.W. Jefferson Way, Corvallis, OR 97331, USA

Morris, P. I. Iron in treated wood reduces the toxicity of arsenic to Leucogyrophana pinastri. Material und Organismen Berlin 28(1): 47-54. Composites Treated Wood Products, Forintek Canada Corp., Western Lab., 2665 East Mall, Vancouver, BC V6T 1W5, Canada

Sexton, C. M., P. G. Forsyth, et al. A comparison of agar exposure and vermiculite burial methods for preparing basidiomycete-colonized wood. Material und Organismen Berlin 28(1): 39-46. Dep. Forest Products, Oregon State Univ., Forest Res. Lab. 105, Corvallis, OR 97331-5709, USA