Publications
Filter Total Items: 2066
Adjacent and downstream effects of forest harvest on the distribution and abundance of larval headwater stream amphibians in the Oregon Coast Range Adjacent and downstream effects of forest harvest on the distribution and abundance of larval headwater stream amphibians in the Oregon Coast Range
Forest harvest is a primary landscape-scale management action affecting riparian forests. Although concerns about impacts of forest harvest on stream amphibians is generally limited to areas adjacent to harvest, there is a paucity of information regarding potential downstream effects of forest harvest on these species. We designed a before-after, control-impact (BACI) experiment to...
Authors
Adam Duarte, Nathan Chelgren, Jennifer Rowe, Christopher Pearl, Sherri Johnson, Michael Adams
Closing the gap between science and management of cold-water refuges in rivers and streams Closing the gap between science and management of cold-water refuges in rivers and streams
Human activities and climate change threaten coldwater organisms in freshwater ecosystems by causing rivers and streams to warm, increasing the intensity and frequency of warm temperature events, and reducing thermal heterogeneity. Cold-water refuges are discrete patches of relatively cool water that are used by coldwater organisms for thermal relief and short-term survival. Globally...
Authors
Francine Mejia, Valerie Ouellet, Martin A. Briggs, Stephanie Carlson, Rose Casas-Mulet, Mollie Chapman, Matthias Collins, Stephen Dugdale, Joseph Ebersole, Danielle Frechette, Aimee Fullerton, Carol-Anne Gillis, Zachary Johnson, Christa Kelleher, Barret Kurylyk, Rebecca Lave, Benjamin Letcher, Knut Myrvold, Tracie-Lynn Nadeau, Helen Neville, Herve Piégay, Kathryn Smith, Diego Tonolla, Christian Torgersen
Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection Combining expert knowledge of a threatened trout distribution with sparse occupancy data for climate-related projection
Objective To evaluate the vulnerability of Bull Trout Salvelinus confluentus to potential climate changes across its range in Oregon, we compiled disparate expert knowledge of the distribution of spawning and rearing and combined these probabilistic statements as data along with documented records of breeding and rearing in a joint occupancy model.Methods The joint expert knowledge...
Authors
Nathan Chelgren, Jason B. Dunham, Stephanie Gunckel, David Hockman-Wert, Chris Allen
Using state-and-transition simulation models to scope post-fire success in restoring greater sage-grouse habitat Using state-and-transition simulation models to scope post-fire success in restoring greater sage-grouse habitat
Wildfires are increasingly modifying wildlife habitat in the western United States and managers need ways to scope the pace and degree to which post-fire restoration actions can re-create habitat in dynamic landscapes. We developed a spatially explicit state-transition simulation model (STSM) to project post-fire revegetation and the potential for sage-grouse habitat restoration in...
Authors
Elizabeth Orning, Julie A. Heinrichs, David Pyke, Peter Coates, Cameron Aldridge
Integrated rangeland fire management strategy actionable science plan completion assessment— Climate and weather topic, 2015–20 Integrated rangeland fire management strategy actionable science plan completion assessment— Climate and weather topic, 2015–20
Loss and degradation of sagebrush (Artemisia spp.) rangelands due to an accelerated invasive annual grass-wildfire cycle and other stressors are significant management, conservation, and economic issues in the western U.S. These sagebrush rangelands comprise a unique biome spanning 11 states, support over 350 wildlife species, and provide important ecosystem services that include...
Authors
Christopher Anthony, Matthew Holloran, Mark Ricca, Steven E. Hanser, Sue L. Phillips, Paul F. Steblein, Lief Wiechman
Per- and polyfluoroalkyl substances (PFAS) in United States tapwater: Comparison of underserved private-well and public-supply exposures and associated health implications Per- and polyfluoroalkyl substances (PFAS) in United States tapwater: Comparison of underserved private-well and public-supply exposures and associated health implications
Drinking-water quality is a rising concern in the United States (US), emphasizing the need to broadly assess exposures and potential health effects at the point-of-use. Drinking-water exposures to per- and poly-fluoroalkyl substances (PFAS) are a national concern, however, there is limited information on PFAS in residential tapwater at the point-of-use, especially from private-wells. We...
Authors
Kelly L. Smalling, Kristin Romanok, Paul Bradley, Matthew Morriss, James L. Gray, Leslie Kanagy, Stephanie Gordon, Brianna Williams, Sara Breitmeyer, Daniel Jones, Laura DeCicco, Collin A. Eagles-Smith, Tyler Wagner
By
Ecosystems Mission Area, Water Resources Mission Area, Cooperative Research Units, Forest and Rangeland Ecosystem Science Center, New Jersey Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Utah Water Science Center
Ecological effects of pinyon-juniper removal in the Western United States—A synthesis of scientific research, January 2014–March 2021 Ecological effects of pinyon-juniper removal in the Western United States—A synthesis of scientific research, January 2014–March 2021
Executive Summary Increasing density of pinyon (Pinus spp.) and juniper (Juniperus spp.) woodlands (hereinafter “pinyon-juniper”), as well as expansion of these woodlands into adjacent shrublands and grasslands, has altered ecosystem function and wildlife habitat across large areas of the interior western United States. Although there are many natural and human-caused drivers of woodland...
Authors
Douglas Shinneman, Susan McIlroy, Sharon Poessel, Rosemary Downing, Tracey Johnson, Aaron Young, Todd E. Katzner
Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends
This report describes status and trends in watershed condition across the Northwest Forest Plan (NWFP) area over the first 25 years since its inception in 1994. The program charged with this task is the Aquatic and Riparian Effectiveness Monitoring Program (AREMP), which has assembled information from field data collection, spatial datasets, and a host of landscape models to evaluate the...
Authors
Jason B. Dunham, Christine Hirsch, Sean Gordon, Rebecca Flitcroft, Nathan Chelgren, Marcia Snyder, David Hockman-Wert, Gordon Reeves, Heidi Andersen, Scott Anderson, William A. Battaglin, Tom Black, Jason Brown, Shannon Claeson, Lauren Hay, Emily Heaston, Charles H. Luce, Nathan Nelson, Colin Penn, Mark Raggon
Implications of tree expansion in shrubland ecosystems for two generalist avian predators Implications of tree expansion in shrubland ecosystems for two generalist avian predators
Shrublands globally have undergone structural changes due to plant invasions, including the expansion of native trees. Removal of native conifer trees, especially juniper (Juniperus spp.), is occurring across the Great Basin of the western U.S. to support declining sagebrush (Artemisia spp.) habitats and associated wildlife species, such as greater sage-grouse (Centrocercus urophasianus)...
Authors
Aaron Young, Todd E. Katzner, Douglas Shinneman, Tracey Johnson
Modeling the spatial distribution of carcasses of eagles killed by wind turbines Modeling the spatial distribution of carcasses of eagles killed by wind turbines
Currently, the US Fish and Wildlife Service makes eagle permitting and management decisions nationwide based on a limited understanding of the impacts of wind power generation on eagles, and the factors that influence risk at a given facility. Accurate estimates of eagle mortality at wind power facilities form the basis for comparing the magnitudes of mortality rates in different areas...
Authors
Manuela Huso, Daniel Dalthorp, Jeffrey Mintz, Torgeir Nygard, Roel May
Captive breeding, husbandry, release, and translocation of sciurids Captive breeding, husbandry, release, and translocation of sciurids
Captive breeding and release programs have been instrumental in preventing the extinction of some wildlife species, but these programs have been less successful for other species. Evaluating initial guidelines for procedures to start a captive breeding and release program for a particular species is an important first step in the process of initiating such a program. The Mohave ground...
Authors
Sharon Poessel