Northern Rocky Mountain Science Center (NOROCK)
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We hope you will enjoy learning about the variety of ecosystems and species we are studying throughout the United States. Our scientists work on diverse issues such as fish and wildlife conservation, invasive species and wildlife disease, energy development, climate and ecosystem change, and much more. Click on Science to begin exploring the places we go and the species and landscapes we study.
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Pikas & Snow DroughtNOROCK Quick Links
Check out our most up-to-date data, events and science.
Flattop Mountain Snowpack Data for Water Year 2018
Glacier Repeat Photography Project
NOROCK ScienceNews
USGS Grizzly Bear Biologist Receives Wyoming Outdoor Hall of Fame Honors
On March 22, USGS Supervisory Wildlife Biologist Mark Haroldson will be inducted into the Wyoming Outdoor Hall of Fame for his contributions to understanding grizzly bear biology, ecology, and...
IGBST Public Notifications and Resources
As part of ongoing efforts required under the 2016 Yellowstone Grizzly Bear Conservation Strategy to monitor the population of grizzly bears in the Yellowstone Ecosystem, the Interagency Grizzly Bear Study Team (IGBST) captures and monitors grizzly bears for research and monitoring purposes. Here you will find capture notifications for the 2018 field season.
A Unified Research Strategy for Disease Management
As wildlife diseases increase globally, an understanding of host-pathogen relationships can elucidate avenues for management and improve conservation efficacy. Amphibians are among the most threatened groups of wildlife, and disease is a major factor in global amphibian declines.
Publications
Social–ecological mismatches create conservation challenges in introduced species management
Introduced species can have important effects on the component species and processes of native ecosystems. However, effective introduced species management can be complicated by technical and social challenges. We identify “social–ecological mismatches” (that is, differences between the scales and functioning of interacting social and ecological...
Beever, Erik A.; Simberloff, Daniel; Crowley, Sarah L.; Al-Chokhachy, Robert; Jackson, Hazel A.; Petersen, Steven L. Modeling elk‐to‐livestock transmission risk to predict hotspots of brucellosis spillover
Wildlife reservoirs of infectious disease are a major source of human‐wildlife conflict because of the risk of potential spillover associated with commingling of wildlife and livestock. In the Greater Yellowstone Ecosystem, the presence of brucellosis (Brucella abortus) in free‐ranging elk (Cervus canadensis) populations is of significant...
Rayl, Nathaniel D.; Proffitt, Kelly M.; Almberg, Emily S.; Jones, Jennifer D.; Merkle, Jerod A.; Gude, Justin A.; Cross, Paul C. Comparing clustered sampling designs for spatially explicit estimation of population density
Spatially explicit capture–recapture methods do not assume that animals have equal access to sampling devices (e.g., detectors), which allows for gaps in the sampling extent and nonuniform (e.g., clustered) sampling designs. However, the performance (i.e., relative root mean squared error [RRMSE], confidence interval coverage, relative bias and...
Clark, Joseph D.