Publications
Filter Total Items: 2073
Intra-site sources of restoration variability in severely invaded rangeland: Strong temporal effects of herbicide-weather interactions; weak spatial effects of plant-community patch type and litter Intra-site sources of restoration variability in severely invaded rangeland: Strong temporal effects of herbicide-weather interactions; weak spatial effects of plant-community patch type and litter
Invasions by exotic annual grasses (EAGs) are replacing native perennials in semiarid areas globally, including the vast sagebrush-steppe rangelands of western North America. Efforts to eradicate EAGs and restore perennials have had mixed success, especially in relatively warm and dry areas where EAGs had high dominance prior to intervention. Greater consideration of the ecological...
Authors
Rebecca Donaldson, Matthew J. Germino
In-reservoir physical processes modulate aqueous and biological methylmercury export from a seasonally anoxic reservoir In-reservoir physical processes modulate aqueous and biological methylmercury export from a seasonally anoxic reservoir
Anoxic conditions within reservoirs related to thermal stratification and oxygen depletion lead to methylmercury (MeHg) production, a key process governing the uptake of mercury in aquatic food webs. Once formed within a reservoir, the timing and magnitude of the biological uptake of MeHg and the relative importance of MeHg export in water versus biological compartments remain poorly...
Authors
Austin K. Baldwin, Collin A. Eagles-Smith, James Willacker, Brett Poulin, David P. Krabbenhoft, Jesse Naymik, Michael T. Tate, Dain Bates, Nick Gastelecutto, Charles Hoovestol, Christopher F. Larsen, Alysa Muir Yoder, James A. Chandler, Ralph Myers
Influence of riparian thinning on trophic pathways supporting stream food webs in forested watersheds Influence of riparian thinning on trophic pathways supporting stream food webs in forested watersheds
Resource managers seek to thin second-growth riparian forests to address multiple stream and riparian management objectives, including enhancing aquatic productivity via light-mediated trophic pathways in watersheds of the Pacific Northwest (USA). However, such increases in aquatic productivity depend on complex food web dynamics that link riparian forests and streams. To evaluate how...
Authors
David A. Roon, Jason B. Dunham, J. Ryan Bellmore, Deanna H. Olson, Bret C. Harvey
Monitoring framework to evaluate effectiveness of aquatic and floodplain habitat restoration activities for native fish along the Willamette River, northwestern Oregon Monitoring framework to evaluate effectiveness of aquatic and floodplain habitat restoration activities for native fish along the Willamette River, northwestern Oregon
Since 2008, large-scale restoration programs have been implemented along the Willamette River, Oregon, to address historical losses of floodplain habitats caused by dam construction, bank protection, large wood removal, land conversion, and other anthropogenic influences. The Willamette Focused Investment Partnership (WFIP) restoration initiative brings together more than 16...
Authors
Mackenzie K. Keith, J. Rose Wallick, Rebecca L. Flitcroft, Tobias J. Kock, Laura A. Brown, Rich Miller, Joan C. Hagar, Kathleen Guillozet, Krista L. Jones
Temporal mismatch in space use by a sagebrush obligate species after large-scale wildfire Temporal mismatch in space use by a sagebrush obligate species after large-scale wildfire
The increase in size and frequency of wildfires in sagebrush steppe ecosystems has significant impacts on sagebrush obligate species. We modeled seasonal habitat use by female greater sage-grouse (Centrocercus urophasianus) in the Trout Creek Mountains of Oregon and Nevada, USA, to identify landscape characteristics that influenced sage-grouse habitat selection and to create predictive...
Authors
Elizabeth M. Schuyler, Christian A. Hagen, Christopher R. Anthony, Lee J. Foster, Katie M. Dugger
Engaging stakeholders to develop a decision support model of conservation risk and management capacity to prioritize investments in Bull Trout recovery Engaging stakeholders to develop a decision support model of conservation risk and management capacity to prioritize investments in Bull Trout recovery
Rarely are sufficient resources available to support the full suite of management actions to promote recovery of a species across their entire distribution. Decision support models are a tool that can inform natural resource management decisions with consideration of the perspectives from a variety of stakeholders who work across large geographic and jurisdictional extents. We offer an...
Authors
William R. Brignon, M. Brian Davis, Stephanie Gunkel, Jason B. Dunham, Michael H. Meeuwig, Chris S Allen, Shaun Clements
Predictive models of selective cattle use of large, burned landscapes in semiarid sagebrush-steppe Predictive models of selective cattle use of large, burned landscapes in semiarid sagebrush-steppe
The fire-exotic annual grass cycle is a severe threat to shrub-steppe rangelands, and a greater understanding of how livestock grazing relates to the problem is needed to guide effective management interventions. Grazing effects vary throughout shrub-steppe rangelands because livestock are selective in their use within pastures. Thus, knowing where cattle are located and concentrate...
Authors
Christopher R. Anthony, Matthew Germino
Anaxyrus boreas (boreal toad). Egg predation Anaxyrus boreas (boreal toad). Egg predation
No abstract available..
Authors
Benjamin Lafrance, Nina Moore, David S. Pilliod, Erin L. Muths
Confirmation that eagle fatalities can be reduced by automated curtailment of wind turbines Confirmation that eagle fatalities can be reduced by automated curtailment of wind turbines
Automated curtailment is potentially a powerful technique to reduce collision mortality of wildlife with wind turbines. Previously, we used a before–after–control–impact framework to demonstrate that eagle fatalities declined after automated curtailment was implemented with the IdentiFlight system at a wind power facility in Wyoming, USA. We received substantial interest and feedback...
Authors
Christopher J. W. McClure, Brian W. Rolek, Leah Dunn, Jennifer D. McCabe, Luke Martinson, Todd E. Katzner
Range-wide sources of variation in reproductive rates of northern spotted owls Range-wide sources of variation in reproductive rates of northern spotted owls
We conducted a range-wide investigation of the dynamics of site level reproductive rate of northern spotted owls using survey data from 11 study areas across the sub-species geographic range collected during 1993–2018. Our analytical approach accounted for imperfect detection of owl pairs and misclassification of successful reproduction (i.e., at least one young fledged) and contributed...
Authors
Jeremy T. Rockweit, Julianna M Jenkins, James E. Hines, James D. Nichols, Katie M. Dugger, Alan B. Franklin, Peter C. Carlson, William L. Kendall, Damon B. Lesmeister, Christopher McCafferty, Steven H. Ackers, L. Steven Andrews, Larissa Bailey, Jesse Burgher, Kenneth P. Burnham, Tara E. Chestnut, Mary M Conner, Raymond J. Davis, Krista E. Dilione, Eric D. Forsman, Elizabeth M. Glenn, Scott A. Gremel, Keith A. Hamm, Dale R. Herter, J. Mark Higley, Rob B. Horn, David W Lamphear, Trent L. McDonald, Janice A Reid, Carl J. Schwarz, David C. Simon, Stan G Sovern, James K. Swingle, David Wiens, Heather Wise, Charles B. Yackulic
Collateral damage: Anticoagulant rodenticides pose threats to California condors Collateral damage: Anticoagulant rodenticides pose threats to California condors
Anticoagulant rodenticides (ARs) are widespread environmental contaminants that pose risks to scavenging birds because they routinely occur within their prey and can cause secondary poisoning. However, little is known about AR exposure in one of the rarest avian scavengers in the world, the California condor (Gymnogyps californianus). We assessed AR exposure in California condors and...
Authors
Garth Herring, Collin A. Eagles-Smith, Rachel Wolstenholme, Alacia Welch, Chris West, Barnett A. Rattner
Open-source intelligence for conservation biology Open-source intelligence for conservation biology
Open-source intelligence (OSINT) evolved in spy agencies but now is rapidly changing many fields of study, from anthropology to zoology. Despite the fact that OSINT occasionally is used in conservation biology, there is little recognition that some tools and frameworks used by conservation professionals are drawn from this well-established field. The history and conceptual foundations of...
Authors
Todd E. Katzner, Eve C. Thomason, Karrin Huhmann, Tara Conkling, Camille B. Concepcion, Vincent Slabe, Sharon A. Poessel