Publications
Filter Total Items: 2066
Multi-scale relationships in thermal limits within and between two cold-water frog species uncover different trends in physiological vulnerability Multi-scale relationships in thermal limits within and between two cold-water frog species uncover different trends in physiological vulnerability
1. Critical thermal limits represent an important component of an organism's capacity to cope with future temperature changes. Understanding the drivers of variation in these traits may uncover patterns in physiological vulnerability to climate change. Local temperature extremes have emerged as a major driver of thermal limits, although their effects can be mediated by the exploitation...
Authors
Amanda Cicchino, Alisha Shah, Brenna Forester, Jason B. Dunham, Cameron Ghalambor, W. Chris Funk
Anticoagulant rodenticides are associated with increased stress and reduced body condition of avian scavengers in the Pacific Northwest Anticoagulant rodenticides are associated with increased stress and reduced body condition of avian scavengers in the Pacific Northwest
Anticoagulant rodenticides (AR) have been used globally to manage commensal rodents for decades. However their application has also resulted in primary, secondary, and tertiary poisoning in wildlife. Widespread exposure to ARs (primarily second generation ARs; SGARs) in raptors and avian scavengers has triggered considerable conservation concern over their potential effects on...
Authors
Garth Herring, Collin A. Eagles-Smith, Jeremy Buck
A retrospective assessment of fuel break effectiveness for containing rangeland wildfires in the sagebrush biome A retrospective assessment of fuel break effectiveness for containing rangeland wildfires in the sagebrush biome
Escalated wildfire activity within the western U.S. has widespread societal impacts and long-term consequences for the imperiled sagebrush (Artemisia spp.) biome. Shifts from historical fire regimes and the interplay between frequent disturbance and invasive annual grasses may initiate permanent state transitions as wildfire frequency outpaces sagebrush communities’ innate capacity to...
Authors
Cali Weise, Brianne Brussee, Peter Coates, Douglas Shinneman, Michele Crist, Cameron Aldridge, Julie Heinrichs, Mark Ricca
A 37 K SNP array for the management and conservation of Golden Eagles (Aquila chrysaetos) A 37 K SNP array for the management and conservation of Golden Eagles (Aquila chrysaetos)
We describe the development of a custom 37 K Affymetrix Axiom myDesign single nucleotide polymorphism (SNP) array for a culturally and ecologically important apex predator, the golden eagle (Aquila chrysaetos). Using this SNP array, we performed population genomic analysis on 154 individuals of known natal localities and detected three genetic clusters that we designated as Taiga/High...
Authors
Megan Judkins, Gary W. Roemer, Brian Millsap, Joseph Barnes, Bryan Bedrosian, Stephen Clarke, Robert Domenech, Garth Herring, Myles Lamont, Brian Smith, Dale Stahlecker, Matthew Stuber, Wesley Warren, Ronald A. Van Den Bussche
Ferruginous Hawk movements respond predictably to intra-annual variation but unexpectedly to anthropogenic habitats Ferruginous Hawk movements respond predictably to intra-annual variation but unexpectedly to anthropogenic habitats
Birds exhibit flexible movement responses to environmental variation across the annual cycle, and those responses can provide insight into potential impacts that environmental changes may have on these species. To understand year-round variation in space use by Ferruginous Hawks Buteo regalis, we tracked 12 birds breeding in southwestern Idaho, USA, using GPS telemetry collected over 207...
Authors
Georgia Isted, Robert Thomas, Kevin Warner, Matthew Stuber, Ethan Ellsworth, Todd E. Katzner
Tree symbioses sustain nitrogen fixation despite excess nitrogen supply Tree symbioses sustain nitrogen fixation despite excess nitrogen supply
Symbiotic nitrogen fixation (SNF) is a key ecological process whose impact depends on the strategy of SNF regulation—the degree to which rates of SNF change in response to limitation by N versus other resources. SNF that is obligate or exhibits incomplete downregulation can result in excess N fixation, whereas a facultative SNF strategy does not. We hypothesized that tree-based SNF...
Authors
Duncan N.L. Menge, Amelia Wolf, Jennifer Funk, Steven Perakis, Palani Akana, Rachel Arkebauer, Thomas Bytnerowicz, K. A. Carreras Pereira, Alexandra Huddell, Sian Kou-Giesbrecht, Sarah Ortiz
Estimating northern spotted owl (Strix occidentalis caurina) pair detection probabilities based on call-back surveys associated with long-term mark-recapture studies, 1993–2018 Estimating northern spotted owl (Strix occidentalis caurina) pair detection probabilities based on call-back surveys associated with long-term mark-recapture studies, 1993–2018
The northern spotted owl (Strix occidentalis caurina; hereinafter NSO) was listed as “threatened” under the Endangered Species Act in 1990 and population declines have continued since that listing. Given the species’ protected status, any proposed activities on Federal lands that might impact NSO require consultation with U.S. Fish and Wildlife Service and part of that consultation often...
Authors
Katie Dugger, Alan Franklin, Damon B. Lesmeister, Raymond Davis, J. Wiens, Gary C. White, James Nichols, James Hines, Charles Yackulic, Carl Schwarz, Steven Ackers, L. Steven Andrews, Larissa L. Bailey, Robin Bown, Jesse Burgher, Kenneth Burnham, Peter C. Carlson, Tara Chestnut, Mary Conner, Krista E. Dilione, Eric Forsman, Scott A. Gremel, Keith Hamm, Dale Herter, J. Mark Higley, Rob B. Horn, Julianna Jenkins, William L. Kendall, David W Lamphear, Christopher McCafferty, Trent McDonald, Janice Reid, Jeremy Rockweit, David Simon, Stan Sovern, James Swingle, Heather Wise
Supervised versus unsupervised approaches to classification of accelerometry data Supervised versus unsupervised approaches to classification of accelerometry data
Sophisticated animal-borne sensor systems are increasingly providing novel insight into how animals behave and move. Despite their widespread use in ecology, the diversity and expanding quality and quantity of data they produce have created a need for robust analytical methods for biological interpretation. Machine learning tools are often used to meet this need. However, their relative
Authors
Maitreyi Sur, Jonathan Hall, Joseph Brandt, Molly Astell, Sharon Poessel, Todd E. Katzner
Who spawns where? Temperature, elevation, and discharge differentially affect the distribution of breeding by six Pacific salmonids within a large river basin Who spawns where? Temperature, elevation, and discharge differentially affect the distribution of breeding by six Pacific salmonids within a large river basin
Within the geographic range of salmonid fishes, many apparently suitable rivers and streams are used for reproduction by some species but not others. This is widely known but seldom addressed, as studies often examine factors determining the distribution of one or only a few species. We examined physical factors associated with the spawning distribution of six native Pacific salmonids...
Authors
Catherine Austin, Christian Torgersen, Thomas Quinn
A multi-level assessment of biological effects associated with mercury concentrations in smallmouth bass, Micropterus dolomieu A multi-level assessment of biological effects associated with mercury concentrations in smallmouth bass, Micropterus dolomieu
Total mercury (THg) was measured in muscle (fillet) and liver tissue of adult smallmouth bass Micropterus dolomieu collected at multiple sites in the Potomac and Susquehanna River drainages within the Chesapeake Bay watershed. Smallmouth bass in these drainages have experienced episodic mortality events, a high prevalence of skin lesions and reproductive endocrine disruption (intersex or
Authors
Vicki S. Blazer, Heather Walsh, Adam Sperry, Brenna Raines, James Willacker, Collin A. Eagles-Smith
Nitrogen-bedrock interactions regulate multi-element nutrient limitation and sustainability in forests Nitrogen-bedrock interactions regulate multi-element nutrient limitation and sustainability in forests
Nutrient limitation of tree growth can intensify when nutrients are lost to forest harvest, creating challenges for forest growth and sustainability. Forest harvest accelerates nutrient loss by removing nutrient-containing biomass and by increasing nutrient leaching, shaping patterns of nutrient depletion that cause long-term shifts in nutrient limitation. Nitrogen most frequently limits...
Authors
Kaveh Siah, Steven Perakis, Julie Pett-Ridge, Gregory van der Heijden
Trends, impacts, and cost of catastrophic and frequent wildfires in the sagebrush biome Trends, impacts, and cost of catastrophic and frequent wildfires in the sagebrush biome
Fire regimes in sagebrush (Artemisia spp.) ecosystems have been greatly altered across the western United States. Broad-scale invasion of non-native annual grasses, climate change, and human activities have accelerated wildfire cycles, increased fire size and severity, and lengthened fire seasons in many sagebrush ecosystems to the point that current wildfire-management practices and...
Authors
Michele R. Crist, Rick Belger, Kirk Davies, Dawn Davis, James Meldrum, Douglas Shinneman, Thomas E. Remington, Justin Welty, Kenneth E. Mayer