Publications
Filter Total Items: 1990
Leveraging rangeland monitoring data for wildlife: From concept to practice
Available rangeland data, from field-measured plots to remotely sensed landscapes, provide much needed information for mapping and modeling wildlife habitats.Better integration of wildlife habitat characteristics into rangeland monitoring schemes is needed for most rangeland wildlife species at varying spatial and temporal scales.Here, we aim to stimulate use of and inspire ideas about rangeland m
Authors
David Pilliod, Jeffrey L. Beck, Courtney Jean Duchardt, Janet L. Rachlow, Kari E. Veblen
Adaptive monitoring in support of adaptive management in rangelands
Monitoring supports iterative learning about the effectiveness of management actions, information that can help managers plan future actions, facilitate decision-making, and improve outcomes.Adaptive monitoring is the evolution of a monitoring program in response to new management questions; new or changing environmental or socioeconomic conditions, improved monitoring methods, models, and tools;
Authors
Sarah E. McCord, David Pilliod
Monitoring for adaptive management of burned sagebrush-steppe rangelands: addressing variability and uncertainty on the 2015 Soda Megafire
• Use of adaptive management supported by robust monitoring is vital to solving severe rangeland problems, such as the exotic annual grass invasion and fire cycle in sagebrush-steppe rangelands.• Uncertainty in post-fire plant-community composition and plant response to treatments poses a challenge to land management and research but can be addressed with a high density of observations over short
Authors
Matthew Germino, Peter Torma, Matthew Fisk, Cara Applestein
Drivers of flight performance of California Condors (Gymnogyps californianus)
Flight behavior of soaring birds depends on a complex array of physiological, social, demographic, and environmental factors. California Condors (Gymnogyps californianus) rely on thermal and orographic updrafts to subsidize extended bouts of soaring flight, and their soaring flight performance is expected to vary in response to environmental variation and, potentially, with experience. We collecte
Authors
Sophie R. Bonner, Sharon Poessel, Joseph C. Brandt, Molly T. Astell, James R. Belthoff, Todd Katzner
Rotenone use and subsequent prey loss lowers Osprey fledging rates via brood reduction
Fisheries managers used the fish toxicant rotenone to eradicate an undesirable brown bullhead (Ameiurus nebulosus) population and all other fish species at Hyatt Reservoir, Oregon, on 12 October 1989. This 4-yr study (1988–1990, 1992) compared effects of that rotenone project on Ospreys (Pandion haliaetus) nesting at Hyatt Reservoir and nearby Howard Prairie Reservoir (untreated reference)—the lat
Authors
Charles J. Henny, James L Kaiser
Toward scoping reviews of individual bird species
Scoping reviews, in which the literature on a given topic is systematically collated and summarized, aid literature searches and highlight knowledge gaps on a given topic, thus hastening scientific progress and informing conservation efforts. Because much research and conservation is targeted at the species level, ornithology and bird conservation would benefit from scoping reviews of individual s
Authors
Christopher J W McClure, Zackery Szymczycha, David L Anderson, Francisca Helena Aguiar-Silva, Sarah Schulwitz, Leah Dunn, MIchael T Henderson, Leticia Camacho, José de Jesús Vargas González, Chris N. Parish, Evan R. Buechley, Jesse D'Elia, Sanford Wilbur, Kenneth Johansen, Devin L Johnson, Søren Møller, Ivan Pokrovsky, Todd E. Katzner
Classifying behavior from short-interval biologging data: An example with GPS tracking of birds
Recent advances in digital data collection have spurred accumulation of immense quantities of data that have potential to lead to remarkable ecological insight, but that also present analytic challenges. In the case of biologging data from birds, common analytical approaches to classifying movement behaviors are largely inappropriate for these massive data sets.We apply a framework for using K-mea
Authors
Silas Bergen, Manuela Huso, A. Duerr, Missy A Braham, Todd E. Katzner, Sara Schmuecker, Tricia A. Miller
Demographic implications of lead poisoning for eagles across North America
Lead poisoning occurs worldwide in populations of predatory birds, but exposure rates and population impacts are known only from regional studies. We evaluated the lead exposure of 1210 bald and golden eagles from 38 US states across North America, including 620 live eagles. We detected unexpectedly high frequencies of lead poisoning of eagles, both chronic (46 to 47% of bald and golden eagles, as
Authors
Vincent A. Slabe, James T. Anderson, Brian A. Millsap, Jeffrey L. Cooper, Alan R. Harmata, Marco Restani, Ross H. Crandall, Barbara Bodenstein, Peter H. Bloom, Travis L. Booms, John Buchweitz, Renee C. E. Culver, Kim Dickerson, Robert Domenech, Ernesto Dominguez-Villegas, Daniel Driscoll, Brian W. Smith, Michael J. Lockhart, David McRuer, Tricia A. Miller, Patricia Ortiz, Krysta Rogers, Matt Schwarz, Natalie Turley, Brian Woodbridge, Myra E. Finkelstein, Christian A. Triana, Christopher R. DeSorbo, Todd E. Katzner
Post-release survival of translocated fishers: Implications for translocation success
As a vital tool for the conservation of species at risk, translocations are also opportunities to identify factors that influence translocation success. We evaluated factors associated with post-release survival of 90 radio-tracked fishers (Pekania pennanti) translocated from central British Columbia, Canada, to the Olympic Peninsula of Washington, USA, from 2008 to 2011. We hypothesized that the
Authors
Jeffrey C. Lewis, Kurt Jenkins, Patricia J. Happe, David J. Manson, Paul C. Griffin
Pathways of productivity and influences on top consumers in forested streams
Forested stream ecosystems involve complex physical and biotic pathways that can influence fish in numerous ways. Consequently, the responses of fish communities to disturbance can be difficult to understand. In this study, we employed a food web model that links biotic (e.g., physiology, predator–prey interactions) and abiotic (e.g., temperature, sunlight) attributes to address fish responses to
Authors
Joseph R. Benjamin, Jason B. Dunham, Sherri L Johnson, Linda Ashkenas, Brooke E Penaluna, Robert E Bilby, Douglas S. Bateman, David W. Leer, James R Bellmore
Age-specific survival rates, causes of death, and allowable take of golden eagles in the western United States
In the United States, the Bald and Golden Eagle Protection Act prohibits take of golden eagles (Aquila chrysaetos) unless authorized by permit, and stipulates that all permitted take must be sustainable. Golden eagles are unintentionally killed in conjunction with many lawful activities (e.g., electrocution on power poles, collision with wind turbines). Managers who issue permits for incidental ta
Authors
Brian Milsap, Guthrie S. Zimmerman, William L. Kendall, Joseph G. Barnes, Melissa A. Braham, Bryan E Bedrosian, Douglas A. Bell, Peter H. Bloom, Ross H. Crandall, Robert Domenech, Daniel Driscoll, Adam E. Duerr, Rick Gerhardt, Samantha E.J. Gibbs, Alan R. Harmata, Kenneth Jacobson, Todd E. Katzner, Robert N. Knight, J. Michael Lockhart, Carol McIntyre, Robert K. Murphy, Steven J. Slater, Brian W. Smith, Jeff P. Smith, Dale W. Stahlecker, James W. Watson
Golden eagle occupancy surveys and monitoring strategy in coastal southern California, United States
Golden eagles (Aquila chrysaetos) are of increasing conservation concern in western North America. Effective conservation measures for this wide-ranging, federally protected raptor species require monitoring frameworks that accommodate strong inference on the status of breeding populations across vast landscapes. We used a broad-scale sampling design to identify relationships between landscape con
Authors
David Wiens, Peter H. Bloom, Melanie C. Madden, Patrick Kolar, Jeff A. Tracey, Robert N. Fisher