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Numbers of Bell's Vireos (Vireo beltii) have declined throughout much of the breeding range in recent years, yet little information exists to determine factors that are causing these declines. We studied Bell's Vireos nesting in grassland-shrub habitats at two study areas in central Missouri to…
Author(s): Joel M. Budnik, Mark R. Ryan, Frank R. Thompson III
Keywords: demography, Missouri, grassland-shrub, habitats, brown-headed Cowbirds, parasitism
Source: The Auk. Volume 117. Issue 4. 2000. 925-935
Year: 2000
A multi-unit wilderness system in the Southern Appalachians was evaluated for its long-term capacity to support biodiversity and provide other forms of “ecological insurance.” Based on spatial thresholds for selected species, community and ecosystem level attributes, ecological capacity was found…
Author(s): J. C. Haney, M. Wilbert, C. De Grood, D. S. Lee, J. Thomson
Keywords: wilderness, ecological capacity, ecosystems, biodiversity, habitats, forest types, Minimum Dynamic Area (MDA), planning, Appalachian Mountains
Source: In: McCool, Stephen F.; Cole, David N.; Borrie, William T.; O’Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference—Volume 2: Wilderness within the context of larger systems; 1999 May 23–27; Missoula, MT. Proceedings RMRS-P-15-VOL-2. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 128-137
Year: 2000
Research was begun in 1995 to describe factors influencing the spatial dynamics and persistence of federally listed chinook salmon within the Frank Church River of No Return Wilderness. Results addressed two objectives: 1) description of chinook salmon redd distributions, and 2) comparison of index…
Author(s): Russell F. Thurow
Keywords: wilderness, Oncorhynchus tshawytscha, chinook salmon, habitats, survival, spawning, redds, temporal variation, spatial variation, Frank Church River of No Return Wilderness, Idaho
Source: In: McCool, Stephen F.; Cole, David N.; Borrie, William T.; O’Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference—Volume 3: Wilderness as a place for scientific inquiry; 1999 May 23–27; Missoula, MT. Proceedings RMRS-P-15-VOL-3. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 143-151.
Year: 2000
To balance wilderness lake use between recreational fisheries and protected habitat for native species, managers need to understand how stocking non-native predaceous fish affects amphibian populations within a landscape. The goal of this paper is to help managers design and conduct studies that…
Author(s): David S. Pilliod, Charles R. Peterson
Keywords: wilderness lakes, fish stocking, nonnative fishes, amphibians, habitats
Source: In: Cole, David N.; McCool, Stephen F.; Borrie, William T.; O’Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference-Volume 5: Wilderness ecosystems, threats, and management; 1999 May 23–27; Missoula, MT. Proceedings RMRS-P-15-VOL-5. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 328-335
Year: 2000
The variability of topography, geology, climate; vegetation, and land use in the Pacific Northwest creates considerable spatial and temporal variability of fluvial processes and reach-scale channel type. Here we identify process domains of typical Pacific Northwest watersheds and examine local…
Author(s): John M. Buffington, Richard D. Woodsmith, Derek B. Booth, David R. Montgomery
Keywords: fluvial processes, channels, channel morphology, habitats, watersheds
Source: In: Montgomery, D.R .; Bolton, S.; Booth, D. B.; Wall, L. Restoration of Puget Sound Rivers. Seattle, WA: University of Washington Press. p. 46-78.
Year: 2003
In this chapter, we summarize current knowledge about the effects of fire, logging, and grazing on coniferous forest birds and their habitats. We critically review the results of studies evaluating how these individual factors influence bird numbers, species diversity, nesting success, and habitat…
Author(s): Deborah M. Finch, Joseph L. Ganey, Wang Yong, Rebecca T. Kimball, Rex Sallabanks
Keywords: Pinus ponderosa, ponderosa pine, Southwest, birds, fire, logging, grazing, habitats
Source: In: Block, William M.; Finch, Deborah M. (Tech. eds.). Songbird ecology in southwestern ponderosa pine forests: a literature review. Gen. Tech. Rep. RM-292. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. p. 103-136.
Year: 1997
Many studies in Southwestern ponderosa pine forests have investigated the relationships between songbirds and habitat characteristics at the level of individual patches (Hall et al. and Finch et al., this volume). To date, though, no published studies from Southwestern ponderosa pine forests have…
Author(s): Kevin M. Rich, Patricia Mehlhop
Keywords: Pinus ponderosa, ponderosa pine, Southwest, songbirds, habitats
Source: In: Block, William M.; Finch, Deborah M. (Tech. eds.). Songbird ecology in southwestern ponderosa pine forests: a literature review. Gen. Tech. Rep. RM-292. Fort Collins, CO: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. p. 137-144.
Year: 1997
Research on forest habitats and the nutritional ecology of Sitka black-tailed deer conducted during 1981 through 1986 is reviewed and synthesized. The research approach was based on the assumption that foraging efficiency is the best single measure of habitat quality for an individual deer.…
Author(s): T.A. Hanley, C.T. Robbins, D.E. Spalinger
Keywords: Deer, black-tailed deer, Sitka black-tailed deer, Odocoileus hemionus, wildlife, habitats, forest management, Alaska, southeastern Alaska, nutrition, ecology
Source: Gen. Tech. Rep. PNW-GTR-230. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 52 p.
Year: 1989
Continuing human activities threaten the highly prized aquatic resources of the interior Columbia basin. Precipitous declines in native species, particularly Pacific salmon, and a large influx of introduced species have radically altered the composition and distribution of native fishes.…
Author(s): Danny C. Lee, James R. Sedell, Bruce E. Rieman, Russell F. Thurow, Jack E. Williams
Keywords: aquatic species, habitats, interior Columbia basin, Pacific salmon
Source: Journal of Forestry. 96(10): 16-21.
Year: 1998
Knowledge of environmental factors impacting anadromous salmonids in their freshwater habitats, particularly at large spatial scales, may be important for restoring them to previously recorded levels in the northwestern United States. Consequently, we used existing data sets and an information-…
Author(s): William L. Thompson, Danny C. Lee
Keywords: Oncorhynchus tshawytscha, Oncorhynchus mykiss, population density, environmental factors, habitats, Idaho
Source: Canadian journal of fisheries and aquatic sciences. 57(9): 1834-1842
Year: 2000
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