Publications
Filter Total Items: 2076
Metapopulation viability of piping plovers in the U.S. Great Plains and Prairie Canada Metapopulation viability of piping plovers in the U.S. Great Plains and Prairie Canada
No abstract available.
Authors
J.H. Plissner, S. M. Haig
Structure and function of biological soil crusts Structure and function of biological soil crusts
No abstract available
Authors
Jayne Belnap
Raptor poisonings and current insecticide use: What do isolated kill reports mean to populations? Raptor poisonings and current insecticide use: What do isolated kill reports mean to populations?
No abstract available.
Authors
Charles J. Henny, P. Mineau, J. E. Elliott, B. Woodbridge
Spatial variation in fire frequency in the Interior Columbia River Basin Spatial variation in fire frequency in the Interior Columbia River Basin
No abstract available.
Authors
D. McKenzie, D. L. Peterson, J.K. Agee
Using analytical tools for decision making and program planning in natural resources: Breaking the fear barrier Using analytical tools for decision making and program planning in natural resources: Breaking the fear barrier
No abstract available.
Authors
D. L. Peterson, D. L. Schmoldt
Ecosystem sustainability and condition Ecosystem sustainability and condition
No abstract available.
Authors
C.Ronald Carroll, Jayne Belnap, Gary K. Meffe
Demography of the Yellowstone grizzly bears Demography of the Yellowstone grizzly bears
We undertook a demographic analysis of the Yellowstone grizzly bears (Ursus arctos) to identify critical environmental factors controlling grizzly bear vital rates, and thereby to help evaluate the effectiveness of past management and to identify future conservation issues. We concluded that, within the limits of uncertainty implied by the available data and our methods of data analysis...
Authors
C. M. Pease, David J. Mattson
Fire and aquatic ecosystems in forested biomes of North America Fire and aquatic ecosystems in forested biomes of North America
Synthesis of the literature suggests that physical, chemical, and biological elements of a watershed interact with long‐term climate to influence fire regime, and that these factors, in concordance with the postfire vegetation mosaic, combine with local‐scale weather to govern the trajectory and magnitude of change following a fire event. Perturbation associated with hydrological...
Authors
Robert E. Gresswell
Breeding bird responses to three silvicultural treatments in the Oregon Coast Range Breeding bird responses to three silvicultural treatments in the Oregon Coast Range
Silvicultural alternatives to clear-cutting have been suggested to promote development, retention, or creation of late-successional features such as large trees, multilayered canopies, snags, and logs. We assessed bird response to three silvicultural alternatives to clear-cutting that retained structural features found in old Douglas-fir (Pseudotsuga menziesii) forests and that imitated...
Authors
C. L. Chambers, William C. McComb, John C. Tappeiner
Multiscale thermal refugia and stream habitat associations of chinook salmon in northwestern Oregon Multiscale thermal refugia and stream habitat associations of chinook salmon in northwestern Oregon
We quantified distribution and behavior of adult spring chinook salmon (Oncorhynchus tshawytscha) related to patterns of stream temperature and physical habitat at channel-unit, reach-, and section-level spatial scales in a wilderness stream and a disturbed stream in the John Day River basin in northeastern Oregon. We investigated the effectiveness of thermal remote sensing for analyzing...
Authors
Christian E. Torgersen, David M. Price, Hiram W. Li, B.A. McIntosh
A GIS modeling method applied to predicting forest songbird habitat A GIS modeling method applied to predicting forest songbird habitat
We have developed an approach for using “presence” data to construct habitat models. Presence data are those that indicate locations where the target organism is observed to occur, but that cannot be used to define locations where the organism does not occur. Surveys of highly mobile vertebrates often yield these kinds of data. Models developed through our approach yield predictions of...
Authors
Randy Dettmers, Jonathan Bart
Fire, red squirrels, whitebark pine, and Yellowstone grizzly bears Fire, red squirrels, whitebark pine, and Yellowstone grizzly bears
Whitebark pine (Pinus albicaulis) habitats are important to Yellowstone grizzly bears (Ursus arctos) as refugia and sources of food. Ecological relationships between whitebark pine, red squirrels (Tamiasciurus hudsonicus), and grizzly bear use of pine seeds on Mt. Washburn in Yellowstone National Park, Wyoming, were examined during 1984-86. Following large-scale fires in 1988, we...
Authors
Shannon Podruzny, Daniel P. Reinhart, David J. Mattson