Publications
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Designing multi-scale hierarchical monitoring frameworks for wildlife to support management: A sage-grouse case study Designing multi-scale hierarchical monitoring frameworks for wildlife to support management: A sage-grouse case study
Population monitoring is integral to the conservation and management of wildlife; yet, analyses of population demographic data rarely consider processes occurring across spatial scales, potentially limiting the effectiveness of adaptive management. Therefore, we developed a method to identify hierarchical levels of organization (i.e., populations) to define multiple spatial scales...
Authors
Michael S. O’Donnell, David R. Edmunds, Cameron L. Aldridge, Julie A. Heinrichs, Peter S. Coates, Brian G. Prochazka, Steve E. Hanser
Status of Pacific martens (Martes caurina) on the Olympic Peninsula, Washington Status of Pacific martens (Martes caurina) on the Olympic Peninsula, Washington
Pacific martens (Martes caurina) remain common in montane regions of the Pacific states, yet their distribution and status on the Olympic Peninsula, Washington, is uncertain. Between 1968– 2008, six reliable marten detections exist; a dead juvenile female (2008) indicates martens were reproducing on the Peninsula within the last decade. To assess the status of martens, we describe...
Authors
K. M. Moriarty, K. B. Aubry
Anticoagulant rodenticides in Strix owls indicate widespread exposure in west coast forests Anticoagulant rodenticides in Strix owls indicate widespread exposure in west coast forests
Exposure of nontarget wildlife to anticoagulant rodenticides (AR) is a global conservation concern typically centered around urban or agricultural areas. Recently, however, the illegal use of ARs in remote forests of California, USA, has exposed sensitive predators, including the federally threatened northern spotted owl (Strix occidentalis caurina). We used congeneric barred owls (S...
Authors
David Wiens, Krista E. Dilione, Collin A. Eagles-Smith, Garth Herring, Damon B. Lesmeister, Mourad W. Gabriel, Greta Wengert, David C. Simon
Floodplains provide important amphibian habitat despite multiple ecological threats Floodplains provide important amphibian habitat despite multiple ecological threats
Floodplain ponds and wetlands are productive and biodiverse ecosystems, yet they face multiple threats including altered hydrology, land use change, and non‐native species. Protecting and restoring important floodplain ecosystems requires understanding how organisms use these habitats and respond to altered environmental conditions. We developed Bayesian models to evaluate occupancy of...
Authors
Meredith Holgerson, Adam Duarte, Marc Hayes, Michael J. Adams, Julie A. Tyson, Keith Douville, Angela Strecker
Elevated heterozygosity in adults relative to juveniles provides evidence of viability selection on eagles and falcons Elevated heterozygosity in adults relative to juveniles provides evidence of viability selection on eagles and falcons
Viability selection yields adult populations that are more genetically variable than those of juveniles, producing a positive correlation between heterozygosity and survival. Viability selection could be the result of decreased heterozygosity across many loci in inbred individuals and a subsequent decrease in survivorship resulting from the expression of the deleterious alleles...
Authors
Jacqueline M. Doyle, Janna R Willoughby, Douglas A. Bell, Peter H. Bloom, Evgeny A. Bragin, Nadia B. Fernandez, Todd E. Katzner, Kolbe Leonard, J Andrew DeWoody
Relevance of individual and environmental drivers of movement of Golden Eagles Relevance of individual and environmental drivers of movement of Golden Eagles
An animal's movement is expected to be governed by an interplay between goals determined by its internal state and energetic costs associated with navigating through the external environment. Understanding this ecological process is challenging when an animal moves in two dimensions and even more difficult for birds that move in a third dimension. To understand the dynamic interaction...
Authors
Maitreyi Sur, Adam E. Duerr, Doug A. Bell, Robert N. Fisher, Jeff A. Tracey, Peter H. Bloom, Trish Miller, Todd E. Katzner
Adding invasive species bio-surveillance to the U.S. Geological Survey streamgage network Adding invasive species bio-surveillance to the U.S. Geological Survey streamgage network
The costs of invasive species in the United States alone are estimated to exceed US$100 billion per year so a critical tactic in minimizing the costs of invasive species is the development of effective, early-detection systems. To this end, we evaluated the efficacy of adding environmental (e)DNA surveillance to the U.S. Geological Survey (USGS) streamgage network, which consists of > 8...
Authors
Adam J. Sepulveda, Christian Schmidt, Jon Amberg, Patrick R. Hutchins, Christian Stratton, Christopher A. Mebane, Matthew Laramie, David S. Pilliod
Passive restoration of vegetation and biological soil crusts following 80 years of exclusion from grazing across the Great Basin Passive restoration of vegetation and biological soil crusts following 80 years of exclusion from grazing across the Great Basin
Restoration targets for biological soil crusts are largely unknown. We surveyed seven 80‐year‐old grazing exclosures across northern Nevada for biocrusts to quantify reference conditions at relatively undisturbed sites. Exclosures were associated with the following plant communities: Wyoming big sagebrush, black sagebrush, and areas co‐dominated by winterfat and Wyoming big sagebrush...
Authors
Lea A. Condon, Nicole Pietrasiak, Roger Rosentreter, David A. Pyke
Wetland management strategy to reduce mercury export in water and bioaccumulation in fish Wetland management strategy to reduce mercury export in water and bioaccumulation in fish
Wetland environments provide numerous ecosystem services but also facilitate methylmercury (MeHg) production and bioaccumulation. We developed a wetland‐management technique to reduce MeHg concentrations in wetland fish and water. We physically modified seasonal wetlands by constructing open‐ and deep‐water treatment cells at the downstream end of seasonal wetlands to promote naturally...
Authors
Joshua T. Ackerman, Jacob Fleck, Collin A. Eagles-Smith, Mark C. Marvin-DiPasquale, Lisamarie Windham-Myers, Mark P. Herzog, Harry L. McQuillen
Decision analysis for the reintroduction of Bull Trout into the lower Pend Oreille River, Washington Decision analysis for the reintroduction of Bull Trout into the lower Pend Oreille River, Washington
The decision to reintroduce a species can be difficult owing to conflicting opinions and objectives, as well as uncertainty of the outcome. Structured decision making addresses these considerations by identifying realistic fundamental objectives and building achievable management alternatives, within a quantitative modeling framework. The process is driven by participation of...
Authors
Joseph R. Benjamin, William R. Brignon, Jason B. Dunham
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem
Major ecological realignments are already occurring in response to climate change. To be successful, conservation strategies now need to account for geographical patterns in traits sensitive to climate change, as well as climate threats to species-level diversity. As part of an effort to provide such information, we conducted a climate vulnerability assessment that included all Pacific...
Authors
Lisa G Crozier, Michelle M McClure, Tim J. Beechie, Steven J. Bograd, David A. Boughton, Mark H. Carr, Thomas D. Cooney, Jason B. Dunham, Correigh M. Greene, Melissa A Haltuch, Elliott L. Hazen, Damon M Holzer, David D. Huff, Rachel C. Johnson, Chris E Jordan, Issac C Kaplan, Steven T Lindley, Nathan J Mantua, Peter B. Moyle, James M Myers, Mark W Nelson, Brian C Spence, Laurie A. Weitkamp, Thomas H. Williams, Ellen Willis-Norton
Application of multiple-population viability analysis to evaluate species recovery alternatives Application of multiple-population viability analysis to evaluate species recovery alternatives
Population viability analysis (PVA) is a powerful conservation tool, but one that remains unapproachable for many species. This is particularly true for species with multiple, broadly-distributed populations for which collecting suitable data can be challenging. A recently-developed method of multiple population viability analysis (MPVA), however, addresses many limitations of...
Authors
Helen M. Neville, Douglas R. Leasure, Daniel C. Dauwalter, Jason B. Dunham, Robin Bjork, Kurt A. Fesenmyer, Nathan Chelgren, Mary M. Peacock, Charles H. Luce, Daniel J. Isaak, Lee Ann Carranza, Jon Sjoberg, Seth J. Wenger