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189 results found
Lists codes for identification of potential natural communities (plant association, habitat types), their seral status, and vegetation structure in and around the Pacific Northwest. Codes are a six-digit alphanumeric system using the first letter of tree species, life-form, seral status, and…
Author(s): Frederick C. Hall
Keywords: Plant association, seral, structure, potential natural community, Pacific Northwest
Source: Gen. Tech. Rep. PNW-GTR-418. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 290 p. In cooperation with: Pacific Northwest Region
Year: 1998
Twelve species of bats occur in Douglas-fir forests of the Pacific Northwest, of which nine are known to roost in tree cavities, bark crevices, or foliage, and several are closely associated with old-growth forests. Thus bat populations may be detrimentally affected by forest management practices…
Author(s): Robin E. Christy, Stephen D. West
Keywords: Bats, Pacific Northwest, natural history, old-growth forests
Source: Gen. Tech. Rep. PNW-GTR-308. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 28 p. (Huff, Mark H.; Holthausen, Richard M.; Aubry, Keith B., Tech. coords. Biology and management of old-growth forests)
Year: 1993
New approaches and technologies to evaluate wildlife-habitat relations, implement integrated forest management, and improve public participation in the process are needed to implement ecosystem management. Presented here are five papers that examine ecosystem management concepts at international,…
Author(s): Mark H. Huff, Lisa K. Norris, J. Brian Nyberg, Nancy L. Wilkin, coords.
Keywords: Biodiversity, conservation planning, forest plantations, forest structure, land management planning, landscape, Pacific Northwest, British Columbia, protected areas, public participation, regional planning, resource conflicts, silvicultural treatments, sustainable forest development
Source: Gen. Tech. Rep. PNW-GTR-336. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Station, 100 p. (Huff, Mark H.; McDonald, Stephen E., Gucinski, Hermann, tech. coords.; Applications of ecosystem management)
Year: 1994
Adaptive management represents a process to use management policies as a source of learning, which in turn can inform subsequent actions. However, despite its appealing and apparently straightforward objectives, examples of successful implementation remain elusive, and a review of efforts to…
Author(s): G.H. Stankey, B.T. Bormann, C. Ryan, B. Shindler, V. Sturtevant, R.N. Clark, C. Philpot
Keywords: Endangered species, Pacific Northwest, policy, USDA Forest Service
Source: Journal of Forestry. 101(1): 40-46
Year: 2003
Ecological management of second-growth forest holds great promise for conservation of biodiversity, yet little experimental evidence exists to compare alternative management approaches. Wintering birds are one of several groups of species most likely to be influenced by forest management activities…
Author(s): B. Haveri, A.B. Carey
Keywords: biodiversity, birds, conservation, forest management, Pacific Northwest, silviculture, variable-density thinning, Washington, winter
Source: Wildlife Society Bulletin. 28(3): 643-652
Year: 2000
We hypothesized that creating a mosaic of interspersed patches of different densities of canopy trees in a second-growth Douglas-fir (Pseudotsuga menziesiz) forest would accelerate development of biocomplexity (diversity in ecosystem structure, composition, and processes) by promoting…
Author(s): A.B. Carey
Keywords: biocomplexity, biodiversity, ecosystem management, forest management, Pacific Northwest, small mammals, variable-density thinning
Source: Journal of Wildlife Management. 65(4): 1014-1027
Year: 2001
An understanding of the factors governing sciurid abundance in the Pacific Northwest is essential for prescribing forest management practices for second-growth forests where recovery of Spotted Owl (Strix occidentalis) populations and enhancement of biodiversity are objectives. We compared…
Author(s): A.B. Carey
Keywords: biodiversity, ecosystem management, forest ecology, Glaucomys, managed forest, old growth, Pacific Northwest, squirrels, snags, Strix occidentalis, Tamias, Tamiasciurus
Source: Ecological Applications. 5(3): 648-661
Year: 1995
Researchers involved with the Pacific Northwest (PNW) Research Station Sustainable Wood Production Initiative have outlined some of the barriers and opportunities for sustainable wood production in the region. Sustainable wood production is defined as the capacity of forests to produce wood,…
Author(s): Robert L. Deal, Seth M. White
Keywords: Pacific Northwest, sustainable forestry, wood production, timber harvest, land use changes, economics
Source: Gen. Tech. Rep. PNW-GTR-626. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 67 p
Year: 2005
This illustrated key for identifying spiders inhabiting true fir and Douglas-fir is based on extensive collections from throughout the three North American Pacific Coast States. Details of the age classes present at budburst and the season in which to expect adults are presented for all species.…
Author(s): A.R. Moldenke, B.L. Fichter, W.P. Stephen, C.E. Griswold
Keywords: Keys (spider), spiders, Douglas-fir, true fir, Pacific Northwest
Source: Gen. Tech. Rep. PNW-GTR-207. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 48 p
Year: 1987
The amphibian and reptile fauna of older forest ecosystems in the Pacific Northwest includes several endemic species, species with unique behavioral and ecological characteristics, and species whose populations have been in decline in recent years. We review the biology of these species and include…
Author(s): A.P. Blaustein, J.J. Beatty, D.H. Olson, R.M. Storm
Keywords: Amphibian, reptile, old-growth forest, Pacific Northwest, ecology
Source: Gen. Tech. Rep. PNW-GTR-337. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 98 p
Year: 1995