Publications
Filter Total Items: 2070
Conservation challenges and research needs for Pacific lamprey in the Columbia River Basin Conservation challenges and research needs for Pacific lamprey in the Columbia River Basin
The Pacific Lamprey Entosphenus tridentatus, an anadromous fish native to the northern Pacific Ocean and bordering freshwater habitats, has recently experienced steep declines in abundance and range contractions along the West Coast of North America. During the early 1990s, Native American tribes recognized the declining numbers of lamprey and championed their importance. In 2012, 26...
Authors
Benjamin J. Clemens, Richard J. Beamish, Kelly C. Coates, Margaret F. Docker, Jason B. Dunham, Ann E. Gray, Jon E. Hess, Jeffrey C. Jolley, Ralph T. Lampman, Brian J. McIlraith, Mary L. Moser, Joshua G. Murauskas, David L. G. Noakes, Howard A. Schaller, Carl B. Schreck, Steven J. Starcevich, Bianca Streif, Stan J. van de Wetering, Joy Wade, Laurie A. Weitkamp, Lance A. Wyss
Long-term forest productivity Long-term forest productivity
No abstract available.
Authors
Bernard T. Bormann, Steven S. Perakis, Robyn Darbyshire, Jeff Hatten
Aquatic-riparian systems Aquatic-riparian systems
No abstract available.
Authors
Deanna H. Olson, Sherri L. Johnson, Paul D. Anderson, Brooke E. Penaluna, Jason B. Dunham
Enhancing public trust in Federal forest management Enhancing public trust in Federal forest management
No abstract available.
Authors
Michael Paul Nelson, Hannah Gosnell, Dana R. Warren, Chelsea Batavia, Matthew Betts, Julia Burton, Emily Jane Davis, Mark Schulze, Catalina Segura, Cheryl Ann Friesen, Steven S. Perakis
Subsequent-year recaptures at winter sites in three species of shrubland sparrows (Emberizidae) Subsequent-year recaptures at winter sites in three species of shrubland sparrows (Emberizidae)
The tendency by individual birds to return to winter sites in subsequent years can be important in assessing the potential influence of habitat changes during the nonbreeding period. We recaptured five Brewer's (Spizella breweri), seven sagebrush (Artemisiospiza nevadensis), and three black-throated (Amphispiza bilineata) sparrows from 1–3 subsequent years at the same winter location...
Authors
Steven T. Knick, Matthias Leu, Steve E. Hanser
Improved supervised classification of accelerometry data to distinguish behaviors of soaring birds Improved supervised classification of accelerometry data to distinguish behaviors of soaring birds
Soaring birds can balance the energetic costs of movement by switching between flapping, soaring and gliding flight. Accelerometers can allow quantification of flight behavior and thus a context to interpret these energetic costs. However, models to interpret accelerometry data are still being developed, rarely trained with supervised datasets, and difficult to apply. We collected...
Authors
Maitreyi Sur, Tony Suffredini, Stephen M. Wessells, Peter H. Bloom, Michael J. Lanzone, Sheldon Blackshire, Srisarguru Sridhar, Todd E. Katzner
Developing approaches for linear mixed modeling in landscape genetics through landscape-directed dispersal simulations Developing approaches for linear mixed modeling in landscape genetics through landscape-directed dispersal simulations
Dispersal can impact population dynamics and geographic variation, and thus, genetic approaches that can establish which landscape factors influence population connectivity have ecological and evolutionary importance. Mixed models that account for the error structure of pairwise datasets are increasingly used to compare models relating genetic differentiation to pairwise measures of...
Authors
Jeffery R. Row, Steven T. Knick, Sara J. Oyler-McCance, Stephen C. Lougheed, Bradley C. Fedy
Science framework for conservation and restoration of the sagebrush biome: Linking the Department of the Interior’s Integrated Rangeland Fire Management Strategy to long-term strategic conservation actions, Part 1. Science basis and applications Science framework for conservation and restoration of the sagebrush biome: Linking the Department of the Interior’s Integrated Rangeland Fire Management Strategy to long-term strategic conservation actions, Part 1. Science basis and applications
The Science Framework is intended to link the Department of the Interior’s Integrated Rangeland Fire Management Strategy with long-term strategic conservation actions in the sagebrush biome. The Science Framework provides a multiscale approach for prioritizing areas for management and determining effective management strategies within the sagebrush biome. The emphasis is on sagebrush...
Authors
Jeanne C. Chambers, Jeffrey L. Beck, John B. Bradford, Jared Bybee, Steve Campbell, John Carlson, Thomas J Christiansen, Karen J. Clause, Gail Collins, Michele R. Crist, Jonathan B. Dinkins, Kevin Doherty, Fred Edwards, Shawn Espinosa, Kathleen A. Griffin, Paul Griffin, Jessica R. Haas, Steve E. Hanser, Douglas W. Havlina, Kenneth F. Henke, Jacob D. Hennig, Linda A Joyce, Francis F. Kilkenny, Sarah M Kulpa, Laurie L Kurth, Jeremy D Maestas, Mary E. Manning, Kenneth E. Mayer, Brian A. Mealor, Clinton McCarthy, Mike Pellant, Marco A. Perea, Karen L. Prentice, David A. Pyke, Lief A. Wiechman, Amarina Wuenschel
Monitoring protocols: Options, approaches, implementation, benefits Monitoring protocols: Options, approaches, implementation, benefits
Monitoring and adaptive management are fundamental concepts to rangeland management across land management agencies and embodied as best management practices for private landowners. Historically, rangeland monitoring was limited to determining impacts or maximizing the potential of specific land uses—typically grazing. Over the past several decades, though, the uses of and disturbances...
Authors
Jason W. Karl, Jeffrey E. Herrick, David A. Pyke
Effects of experimental removal of barred owls on population demography of northern spotted owls in Washington and Oregon—2016 progress report Effects of experimental removal of barred owls on population demography of northern spotted owls in Washington and Oregon—2016 progress report
Evidence indicates that competition with invasive barred owls (Strix varia) is causing rapid declines in populations of northern spotted owls (S. occidentalis caurina), and that the long-term persistence of spotted owls may be in question without additional management intervention. A pilot study in California showed that removal of barred owls in combination with habitat conservation may...
Authors
J. David Wiens, Katie M. Dugger, Krista E. Lewicki, David C. Simon
Quantifying the demographic cost of human-related mortality to a raptor population Quantifying the demographic cost of human-related mortality to a raptor population
Raptors are exposed to a wide variety of human-related mortality agents, and yet population-level effects are rarely quantified. Doing so requires modeling vital rates in the context of species life-history, behavior, and population dynamics theory. In this paper, we explore the details of such an analysis by focusing on the demography of a resident, tree-nesting population of golden...
Authors
W. Grainger Hunt, David Wiens, Peter R. Law, Mark R. Fuller, Teresa L. Hunt, Daniel E. Driscoll, Ronald E. Jackman
Polygamy slows down population divergence in shorebirds Polygamy slows down population divergence in shorebirds
Sexual selection may act as a promotor of speciation since divergent mate choice and competition for mates can rapidly lead to reproductive isolation. Alternatively, sexual selection may also retard speciation since polygamous individuals can access additional mates by increased breeding dispersal. High breeding dispersal should hence increase gene flow and reduce diversification in...
Authors
Josephine D’Urban Jackson, Natalie dos Remedios, Kathryn Maher, Sama Zefania, Susan M. Haig, Sara J. Oyler-McCance, Donald Blomqvist, Terry Burke, Michael W. Bruford, Tamas Szekely, Clemens Kupper