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Research Areas
Biological Diversity
In old forest, stream, and meadow ecosystems, the Andrews Forest has thousands of species of insects, 83 bird species, 19 gymnosperm species, and 9 species of fish. Biodiversity research at Andrews examines the causes and consequences of biological diversity in our landscape and seeks to understand how land use, disturbance, and climate change will affect these patterns and relationships. Studies range from the genetic to landscape scales, and include field observational studies, experiments, and modeling. We use "biodiversity" as a broad term/theme for many pieces of work that, for the most part, are not coordinated in a unified program of inquiry. Research Details
- Ongoing research in LTER6
- Phenology and Trophic interactions in LTER6
- Nutrient Network (Nutnet)
- Oregon State University Bioacoustics group
- Interactive visualization of moth diversity
- Overview of Andrews Forest biodiversity research (2008)
- Photos of Caterpillars of the Pacific Northwest
- Archived specimen from Andrews Forest:
- Species Lists from the Andrews Forest
- Ecology of epiphytic lichens
- Bunchgrass Ridge: Restoration of montane meadows in western Oregon - A center for research and adaptive management.
- Prior Research Details and Summaries
Key Databases
- Invertebrates of the Andrews Experimental Forest: An annotated list of insects and other arthropods, 1971 to 2002 -- SA001
- Vascular plant list on the Andrews Experimental Forest and nearby Research Natural Areas, 1958 to 1979 -- SA002
- Spatial and temporal distribution and abundance of moths in the Andrews Experimental Forest, 1994 to 2008 -- SA015
- Headwater Stream Macroinvertebrates of the H.J. Andrews Experimental Forest, Oregon -- SA022
- Plant succession and biomass dynamics following logging and burning in the Andrews Experimental Forest Watersheds 1 and 3, 1962-Present -- TP073
- Species interactions during succession -- TP103
List of all Biological Diversity databases
Personnel
- Leader(s)
- Key Personnel
- Associates
- Graduate Students
Other Links
Key Citations
- Northern Spotted Owl Demography Study
- Birding by ear online - Terra article
- Automated insect identification
- Epiphytes and Forest Management
- Ecology of Epiphytic Lichens
Dovciak, Martin; Halpern, Charles B. 2010 . Positive diversity-stability relationships in forest herb populations during four decades of community assembly. Ecology Letters. 13: 1300-1309, doi:10.1111/j.1461-0248.2010.01524.x. (Pub No: 4578)
Frady, Charles; Johnson, Sherri; Li, Judy. 2007. Stream macroinvertebrate community responses as legacies of forest harvest at the H.J. Andrews Experimental Forest, Oregon. Forest Science. 53(2): 281-293. (Pub No: 4053)
Lutz, James A.; Halpern, Charles B. 2006. Tree mortality during early forest development: a long-term study of rates, causes, and consequences. Ecological Monographs. 76(2): 257-275. (Pub No: 4017)
Watterson, Nicholas. 2004. Exotic plant invasion from roads to stream networks in steep forested landscapes of western Oregon. Corvallis, OR: Oregon State University. 90 p. M.S. thesis. (Pub No: 3807)
Heyborne, W. H.; Miller, J. C.; Parsons, G. L. 2003. Ground dwelling beetles and forest vegetation change over a 17-year-period, in western Oregon, USA. Forest Ecology and Management. 179: 123-134. (Pub No: 3668)
Rich, J. J.; Heichen, R. S.; Bottomley, P. J.; Cromack, K. Jr. ; Myrold, D. D. 2003. Community composition and functioning of denitrifying bacteria from adjacent meadow and forest soils. Applied and Environmental Microbiology. 69(10): 5974-5982. (Pub No: 3676)
Miller, Jeffrey C.; Hammond, Paul C. 2003 . Lepidoptera of the Pacific Northwest: caterpillars and adults. FHTET-2003-03. Morgantown, VW: U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team. 324 p. (Pub No: 3739)
Rozzell, Lara R. 2003. Species pairwise associations over nine years of secondary succession: assessing alternative explanations and successional mechanisms. Logan, UT: Utah State University. 56 p. M.S. thesis. (Pub No: 3782)
Parendes, Laurie A.; Jones, Julia A. 2000. Role of light availability and dispersal in exotic plant invasion along roads and streams in the H.J. Andrews Experimental Forest, Oregon. Conservation Biology. 14(1): 64-75. (Pub No: 2522)
Miller, Jeffrey C.; Hammond, Paul C. 2000. Macromoths of Northwest forests and woodlands. FHTET-98-18. Morgantown, VW: U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team. 133 p. (Pub No: 2802)
Hammond, Paul C.; Miller, Jeffrey C. 1998. Comparison of the biodiversity of Lepidoptera within three forested ecosystems. Annals of the Entomological Society of America. 91(3): 323-328. (Pub No: 2530)
Hansen, Andrew J.; Garman, Steven L.; Marks, Barbara; Urban, Dean L. 1996. An approach for managing vertebrate diversity across multiple use landscapes. In: Samson, Fred B.; Knopf, Fritz L., eds. Ecosystem management: selected readings. New York: Springer-Verlag: 331-350. (Pub No: 3041)
Halpern, Charles B.; Spies, Thomas A. 1995. Plant species diversity in natural and managed forests of the Pacific Northwest. Ecological Applications. 5(4): 913-934. (Pub No: 1526)
Peck, JeriLynn E.; Acker, Steven A.; McKee, W. Arthur. 1995. Autecology of mosses in coniferous forests in the central western Cascades of Oregon. Northwest Science. 69(3): 184-190. (Pub No: 1549)
Sillett, Stephen Charles. 1995. Canopy epiphyte studies in the central Oregon Cascades: implications for the management of Douglas-fir forests. Corvallis, OR: Oregon State University. 115 p. Ph.D. dissertation. (Pub No: 2227)
Miller, Jeffrey C. 1995. Caterpillars of Pacific Northwest forests and woodlands. Morgantown, VW: U.S. Department of Agriculture, Forest Service, National Center of Forest Health Management; FHM-NC-06-95. 80 p. (Pub No: 2402)
Neitlich, Peter N. 1993. Lichen abundance and biodiversity along a chronosequence from young managed stands to ancient forest. Burlington, VT: University of Vermont. 90 p. M.S. thesis. (Pub No: 1504)
Hansen, Andrew J.; Garman, Steven L.; Marks, Barbara; Urban, Dean L. 1993. An approach for managing vertebrate diversity across multiple-use landscapes. Ecological Applications. 3(3): 481-496. (Pub No: 1257)
Walls, Susan C.; Blaustein, Andrew R.; Beatty, Joseph J. 1992. Amphibian biodiversity of the Pacific Northwest with special reference to old-growth stands. The Northwest Environmental Journal. 8: 53-69. (Pub No: 1397)
Halpern, Charles B.; Franklin, Jerry F.; McKee, Arthur. 1992. Changes in plant species diversity after harvest of Douglas-fir forests. Northwest Environmental Journal. 8(1): 205-207. (Pub No: 1405)
Halpern, Charles B.; Antos, Joseph A.; Cromack, Kermit Jr.; Olson, Annette M. 1992. Species interactions and plant diversity during secondary succession. Northwest Environmental Journal. 8(1): 203-205. (Pub No: 1406)
Spies, Thomas A. 1991. Plant species diversity and occurrence in young, mature and old-growth Douglas-fir stands in western Oregon and Washington. In: Ruggiero, Leonard F.; Aubry, Keith B.; Carey, Andrew B.; Huff, Mark H., tech. eds. Wildlife and vegetation of unmanaged Douglas-fir forests. Gen. Tech. Rep. PNW-285. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 111-121. (Pub No: 1245)
Parsons, Gary L.; Cassis, Gerasimos; Moldenke, Andrew R.; Lattin, John D.; Anderson, Norman H.; Miller, Jeffrey C.; Hammond, Paul; Schowalter, Timothy D. 1991. Invertebrates of the H.J. Andrews Experimental Forest, western Cascade Mountains, Oregon: V. An annotated list of the insects and other arthropods. PNW-GTR-290. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 168 p. (Pub No: 984)
Halpern, Charles B.; Franklin, Jerry F. 1990. Physiognomic development of Pseudotsuga forests in relation to initial structure and disturbance intensity. Journal of Vegetation Science. 1: 475-482. (Pub No: 1129)
Franklin, Jerry F.; Perry, David A.; Schowalter, Timothy D.; Harmon, Mark E.; McKee, Arthur; Spies, Thomas A. 1989. The importance of ecological diversity in maintaining long-term site productivity. In: Perry, D. A.; Meurisse, R.; Thomas, B.; Miller, R.; Boyle, J.; Means, J.; Perry, C. R.; Powers, R. F., eds. Maintaining the long-term productivity of Pacific Northwest forest ecosystems. Portland, OR: Timber Press: 82-97. (Pub No: 950)
Halpern, Charles B. 1989. Early successional patterns of forest species: interactions of life history traits and disturbance. Ecology. 70(3): 704-720. (Pub No: 956)
Schowalter, T. D.; Crossley, D. A. Jr. 1988. Canopy arthropods and their response to forest disturbance. In: Swank, Wayne T.; Crossley, D. A. Jr., eds. Forest hydrology and ecology at Coweeta. Ecology Studies 66. New York: Springer-Verlag: 207-218. (Pub No: 1332)
Franklin, Jerry F.; Cromack, Kermit Jr.; Denison, William; McKee, Arthur; Maser, Chris; Sedell, James; Swanson, Fred; Juday, Glen. 1981. Ecological characteristics of old-growth Douglas-fir forests. Gen. Tech. Rep. PNW-118. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 48 p. (Pub No: 125)
Zobel, Donald B.; McKee, Arthur; Hawk, Glenn M.; Dyrness, C. T. 1976. Relationships of environment to composition, structure, and diversity of forest communities of the central western Cascades of Oregon. Ecological Monographs. 46(2): 135-156. (Pub No: 192)
Parsons, David R. 1975. Time and energy budgets of a population of dippers (Cinclus mexicanus) during winter in the Cascade Range of Oregon. Corvallis, OR: Oregon State University. 29 p. M.S. thesis. (Pub No: 1947)
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