Publications
Filter Total Items: 2088
Climate-driven changes in wetland hydroperiods predict losses in habitat suitability for amphibian breeding Climate-driven changes in wetland hydroperiods predict losses in habitat suitability for amphibian breeding
Environmental regimes are shifting with accelerating climate change, disrupting interactions between species and ecosystems shaped by the climate of the pre-industrial era. Species assemblages that depend on a dynamic network of ephemeral and permanent habitats may be especially sensitive to changing climate, whereby shifting environmental regimes may limit species persistence in...
Authors
Griffin C Dare, Maureen E. Ryan, Se-Yeun Lee, Leithen K. M'Gonigle, Rebecca M. McCaffery, Alan F. Hamlet, Michael J. Adams, Wendy J. Palen
The rising threat of lead: Trends in fatalities of California condors The rising threat of lead: Trends in fatalities of California condors
Endangered species face threats that change over time, and understanding variation in the importance of threats is valuable for guiding species recovery. The reintroduced population of critically endangered California condors has faced a number of threats over the three decades since the species was first released back to the wild. We modeled interannual and interseasonal trends in the...
Authors
Molly Astell, Steve Kirkland, Punzalan. Arrianna, Todd E. Katzner
Wicked problems in practice: Responding to ecological transformation in wilderness Wicked problems in practice: Responding to ecological transformation in wilderness
Congressionally designated wilderness offers the highest level of land protection in the USA, comparable to category 1b wilderness as defined by the International Union for Conservation of Nature, yet wilderness areas face impacts of climate change. Researchers and managers increasingly recognize the immense challenge of stewarding wilderness in a changing climate. Although responding to...
Authors
Jaclyn Fox Rushing, Kira Hefty, Teresa N. Hollingsworth, Amanda E. Cravens, Christopher A. Armatas, Clare Boerigter, Kellie J. Carim, Shelley D. Crausbay, Olga Helmy, David J. Lawrence, Lauren Redmore, George W. Schuurman, Eric J. Taylor, Jennifer N.L. Wilkening, Katherine A. Zeller, Sean A. Parks
Global carbon investment in terrestrial biological nitrogen fixation Global carbon investment in terrestrial biological nitrogen fixation
Biological nitrogen (N) fixation (BNF) provides the N needed to produce proteins and other biological building blocks, helping feed humanity and mitigate climate change. Due to its high energetic cost compared to other forms of N acquisition, biotic investment in BNF indicates N limitation. Globally gridded BNF flux data provide an opportunity to determine the energetic investment in BNF...
Authors
Duncan N.L. Menge, Carla R. Reis Ely, Steven S. Perakis, Sian Kou-Giesbrecht, Cory C. Cleveland, Sasha C. Reed, Benton N. Taylor, Sarah A. Batterman, Timothy E. Crews, Katherine A. Dynarski, Jennifer L. Funk, Maga G. Gei, Kevin L. Griffin, Michael J. Gundale, David F. Herridge, Sarah E. Jovan, Mark B. Peoples, Johannes Piipponen, Emilio Rodriguez-Caballero, Verity G. Salmon, Fiona M. Soper, Anika P. Staccone, Bettina Weber, Amelia A. Wolf, Nina Wurzburger
Lead exposure of snakes near recreational and military shooting areas in a sagebrush steppe ecosystem Lead exposure of snakes near recreational and military shooting areas in a sagebrush steppe ecosystem
Lead exposure has been documented in a multitude of bird and mammal species but less frequently in reptiles. Of the studies that have evaluated lead concentrations in reptiles, few have focused on snakes. We analyzed lead concentrations in liver and two types of bone from 24 gophersnakes (Pituophis catenifer; Pc) and 12 Great Basin rattlesnakes (Crotalus oreganus lutosus; Col) found dead...
Authors
Vincent A. Slabe, David S. Pilliod, Michelle I. Jeffries, Kristina Joan Parker, Megan Yrazabal, Christine D. Hayes, Patricia A. Ortiz, Todd E. Katzner
Satellite observations reveal widespread alteration of river thermal regimes by U.S. dams Satellite observations reveal widespread alteration of river thermal regimes by U.S. dams
Dams are well known to alter river thermal regimes, but assessments of downstream temperature changes have been constrained to single dams, single basins, or specific seasonal windows, thus limiting knowledge of their widespread impacts. We used satellite-based thermal infrared observations to quantify river surface temperature differences up- and downstream of 287 large dams in the...
Authors
Emily A. Ellis, George H. Allen, Christian E. Torgersen, Katie A. McQuillan
Stream temperature variability in headwater beaver dam complexes in relation to hydrologic and environmental factors Stream temperature variability in headwater beaver dam complexes in relation to hydrologic and environmental factors
Beaver modify hydrological regimes and have the ability to both increase water storage and alter stream temperatures. For these reasons, beaver translocation and the construction of human engineered beaver-dam analogs (BDAs) have become popular tools for climate-change adaptation. However, there is a lack of understanding about how beaver engineering affects stream temperature. The...
Authors
Catherine D.O. Means, Christian E. Torgersen, Joshua J. Lawler, Andrew S. Gendaszek, Benjamin J. Dittbrenner
Non-destructive sampling of larval amphibians shows tail tissues reflect whole-body methylmercury concentrations and trophic-related differences in bioaccumulation Non-destructive sampling of larval amphibians shows tail tissues reflect whole-body methylmercury concentrations and trophic-related differences in bioaccumulation
Mercury (Hg), and specifically methylmercury (MeHg), is a contaminant of global concern to humans and wildlife, but there is still limited understanding of its effects on many taxa. Amphibians are closely associated with water, where Hg is converted to MeHg, and high concentrations of MeHg can reduce survival of amphibians in the wild. However, limited non-lethal proxies exist for...
Authors
Brian J. Tornabene, Blake Hossack, Daniel A. Grear, Thomas L. Anderson, Brad Glorioso, Hardin Waddle, Jon D Davenport, Collin Eagles-Smith, Caitlin T. Rumrill, Kelly L. Smalling
Debunking the myth of the quintessential resource manager: Precision in actionable science Debunking the myth of the quintessential resource manager: Precision in actionable science
“Actionable science” is a widely held standard for identifying the merits of natural resources research. Yet, science is often framed as actionable to a vaguely identified quintessential “manager” without defining either the intended manager or use. Generic descriptions lack precision for identifying end users or their needs, limiting methodological rigor in research design and leading...
Authors
Amanda E. Cravens, Nicole M. Herman-Mercer, Aparna Bamzai-Dodson, Megan A. Moore, Richard Eugene Waggaman Berl, Nicholas W. Cole, Oronde Oliver Drakes, Diamond Victoria Ebanks, David C. Fulton, Megan Siobhan Jones, Dawn Marie Kotowicz, Michael C Mcinturff, James R. Meldrum, Kathryn Powlen, Aaron Daniel Russell, Stefan Gabriel Tangen, Emily J. Wilkins
By
Ecosystems Mission Area, Water Resources Mission Area, Climate Adaptation Science Centers, Cooperative Research Units, Forest and Rangeland Ecosystem Science Center, Fort Collins Science Center, National Wildlife Health Center, Oklahoma-Texas Water Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Office of Science Quality and Integrity
Detecting bumble bees in the wild using environmental DNA: Development and validation of a qPCR assay for the endangered Franklin’s bumble bee (Bombus franklini) Detecting bumble bees in the wild using environmental DNA: Development and validation of a qPCR assay for the endangered Franklin’s bumble bee (Bombus franklini)
Environmental DNA (eDNA) sampling is a noninvasive alternative to conventional methods of surveying insects that may be particularly useful for detecting pollinators. We developed a quantitative polymerase chain reaction (qPCR) assay to detect the DNA of Franklin’s bumble bee (Bombus franklini) from flower samples and conducted an initial test of the assay using samples collected within...
Authors
Michaela Ray Grossklaus, David S. Pilliod, Stephen Frank Spear, Matthew B B. Laramie, Akhil Kholwadwala, Amanda Jean Boone, Yer Lor, Marissa Kaminski, Jeffrey G. Everett
Behavioral shifts mask the success of legislation and outreach for endangered species recovery Behavioral shifts mask the success of legislation and outreach for endangered species recovery
A fundamental challenge in conservation is assessing the efficacy of recovery actions to optimize endangered species management. Considerable recent attention has focused on effective measures to counter the endangerment of avian scavengers, which have declined worldwide, primarily due to poisoning. One iconic example is efforts to recover the critically endangered California condor...
Authors
Victoria J. Bakker, Daniel F. Doak, Alacia Welch, L. Joseph Burnett, María C. Porras Peña, Joseph Brandt, Sharon A. Poessel, Steve Kirkland, Rachel Wolstenholme, Daniel Ryan, Mike Stake, Arianna Punzalan, Nacho Vilchis, Melissa A. Braham, Myra E. Finkelstein
RoadxStr user’s guide—For collection of road-stream crossing assessment field observations RoadxStr user’s guide—For collection of road-stream crossing assessment field observations
Intersections of drainage networks and road networks represent a critical nexus between natural waterways and human infrastructure. Managing these systems involves decisions related to management of infrastructure, hydrologic and geomorphic processes, and ecological connectivity. Interactions among these systems influence multiple values, including the intactness of transportation...
Authors
Emily Heaston, Sean Winter, Shelby Bauer, Tait Ronningen, Jason Dunham