A5038122814- Wildlife Ecology and Conservation
- Rangeland and Wildlife Management
- Fire effects on ecosystems
- Animal Ecology and Behavior Studies
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Turfgrass Adaptation and Management
- Archaeology and Natural History
- Avian ecology and behavior
- Ecology and biodiversity studies
- Wildlife-Road Interactions and Conservation
- Noise Effects and Management
- Remote Sensing and LiDAR Applications
- Remote Sensing in Agriculture
- Hydrology and Watershed Management Studies
- Botany, Ecology, and Taxonomy Studies
- Conservation, Ecology, Wildlife Education
- Conferences and Exhibitions Management
- Soil erosion and sediment transport
- Genetic diversity and population structure
- Landslides and related hazards
- Climate Change Communication and Perception
- Rangeland Management and Livestock Ecology
- Social Acceptance of Renewable Energy
- Urban Green Space and Health
United States Geological Survey
2018-2025
Northern Rocky Mountain Science Center
2018-2025
University of Washington
2009-2020
Rocky Mountain Research (United States)
2020
Entertainment Industries Council
2018
Oregon State University
2008-2014
Although increased frequency of extreme-weather events is one the most secure predictions associated with contemporary climate change, effects such on distribution and abundance climate-sensitive species remain poorly understood. Montane ecosystems may be especially sensitive to extreme weather because complex abiotic biotic interactions that propagate from climate-driven reductions in snowpack. Snowpack not only protects subnivean biotas cold, but also influences forage availability through...
Abstract: Livestock grazing is common and widespread throughout North America, yet few studies have evaluated its effects on small mammals. We studied mammals in mixed‐conifer forests oak woodlands the Cascade‐Siskiyou National Monument southern Oregon, USA, to 1) evaluate small‐mammal microhabitat associations, 2) identify riparian‐associated species, 3) test hypothesis that does not influence after accounting for associations. live‐trapped at 16 study sites used logistic regression model...
First posted February 7, 2024 For additional information, contact: Director, Fort Collins Science CenterU.S. Geological Survey2150 Centre Ave., Bldg. CFort Collins, CO 80526-8118 The U.S. Survey is working with Federal land management agencies to develop a series of science syntheses support environmental effects analyses that conduct comply the National Environmental Policy Act (NEPA). This report synthesizes information about potential culverts on stream connectivity and subsequent fish....
Abstract Recent snow droughts associated with unusually warm winters are predicted to increase in frequency and affect species dependent upon snowpack for winter survival. Changes populations of some cold‐adapted have been attributed heat stress or indirect effects on habitat from summers, but little is known about the importance weather population dynamics how responses drought vary among sympatric species. We evaluated changes abundance hoary marmots ( Marmota caligata ) over a period that...
Drones have emerged as a popular wildlife research tool, but their use for many species and environments remains untested is needed on validation of sampling approaches that are optimised unpiloted aircraft. Here, we present foreword to special issue features studies pushing the taxonomic innovation boundaries drone thus helps address these knowledge application gaps. We then conclude by highlighting future ideas likely push biology conservation in exciting new directions.
ABSTRACT Habitat suitability maps are important tools for conservation planning and species investigations, but at resolutions that biologically meaningful useful local‐level decision‐making lacking many use resources fine scales. Airborne light detection ranging (LiDAR) describes 3‐dimensional structure of forests other habitats high resolution, which can improve habitat models facilitate investigations otherwise impossible with field data or remote‐sensing techniques. We used an...
Vegetation phenology and productivity play a crucial role in surface energy balance, plant animal distribution, movement habitat use can be measured with remote sensing metrics including start of season (SOS), peak instantaneous rate green-up date (PIRGd), (POS), end (EOS), integrated vegetation indices. However, for most metrics, we do not yet understand the agreement remotely sensed data products near-surface observations. We also need summaries changes over time, spatial variability,...
Migration is a critical behavioral strategy necessary for population persistence and ecosystem functioning, but migration routes have been increasingly disrupted by anthropogenic activities, including energy development. Wind the world's fastest growing source of electricity represents an important alternative to hydrocarbon extraction, its effects on migratory species beyond birds bats are not well understood. We evaluated wind-energy development pronghorn migration, behavior habitat...
Abstract Wildlife aggregation patterns can influence disease transmission. However, limited research evaluates the of anthropogenic and natural factors on aggregation. Many managers would like to reduce wildlife contact rates, driven by aggregation, limit We develop a novel analytical framework quantify how management activities such as supplemental feeding hunting versus weather drive rates while accounting for correlated contacts. apply National Elk Refuge (NER), Wyoming, USA, where...
Abstract In the face of climate change, wind energy represents an important alternative to oil and gas extraction meet increasing demands, but it has potential disrupt wildlife populations. Because behavioral adjustments, such as altered habitat selection, are a primary way that long‐lived species respond novel disturbances, we evaluated effects development on pronghorn ( Antilocapra americana ) space use selection. Using data from GPS‐collared female in Shirley Basin south‐central Wyoming,...
First posted September 30, 2020 For additional information, contact: Director, Fort Collins Science CenterU.S. Geological Survey2150 Centre Ave., Building CFort Collins, CO 80526-8118 The greater sage-grouse (Centrocercus urophasianus; hereafter GRSG) has been a focus of scientific investigation and management action for the past two decades. 2015 U.S. Fish Wildlife Service listing determination “not warranted” was in part due to large-scale collaborative effort develop strategies conserve...
Abstract Novel approaches to quantifying density and distributions could help biologists adaptively manage wildlife populations, particularly if methods are accurate, consistent, cost‐effective, rapid, sensitive change. Such may also improve research on interactions between processes of interest, such as disease transmission across multiple populations. We assess how satellite imagery, unmanned aerial system (UAS) Global Positioning System (GPS) collar data vary in characterizing elk...
First posted February 14, 2018 For additional information, contact: Director, Fort Collins Science CenterU.S. Geological Survey2150 Centre Ave., Building CFort Collins, CO 80526-8118 The greater sage-grouse (Centrocercus urophasianus; hereafter GRSG) has been a focus of scientific investigation and management action for the past two decades. 2015 U.S. Fish Wildlife Service listing determination “not warranted” was in part due to large-scale collaborative effort develop strategies conserve...
Animal movement is the mechanism connecting landscapes to fitness, and understanding variation in seasonal animal movements has benefited from analysis categorization of displacement. However, patterns can defy classification when are highly variable. Hidden Markov models (HMMs) a class latent-state well-suited modeling data. Here, we used HMMs assess pronghorn (
ABSTRACT Habitat loss and fragmentation can have detrimental effects on wildlife populations where pervasive create population isolates that may experience reduced genetic diversity lower persistence. Diseases cause epizootics also reduce disproportionate small populations. We studied survival of radio‐marked western gray squirrels ( Sciurus griseus ) using known‐fate models in Program MARK we quantified annual reproductive success by following females through the breeding season counting...
Abstract Non‐native species maps are important tools for understanding and managing biological invasions. We demonstrate a novel approach to extend presence modeling map fractional cover (FC) of non‐native yellow sweet clover Melilotus officinalis in the Northern Great Plains, USA. used ensembles MaxEnt models FC across landscapes from satellite imagery trained regional aerial that was by local unmanned vehicle (UAV) imagery. Clover field surveys classified UAV were nearly identical ( n =...
First posted February 1, 2019 For additional information, contact: Director, Fort Collins Science CenterU.S. Geological Survey2150 Centre Ave., Building CFort Collins, CO 80526-8118 The Wyoming Landscape Conservation Initiative (WLCI) was established in 2008 to address the scientific and conservation questions associated with land use changes because of energy development other factors southwest Wyoming. Over past decade, partners from U.S. Survey (USGS), State Federal management agencies,...
First posted May 10, 2018 For additional information, contact: Director, Fort Collins Science CenterU.S. Geological Survey2150 Centre Ave., Building CFort Collins, CO 80526-8118 This is the ninth annual report highlighting U.S. Survey (USGS) science and decision-support activities conducted for Wyoming Landscape Conservation Initiative (WLCI). The address specific management needs identified by WLCI partner agencies. In fiscal year (FY) 2016, there were 26 active USGS science-based projects....