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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Check out our most up-to-date data, events and science.
Retreat of Glaciers in Glacier National Park
Glacier Repeat Photography Project
NOROCK ScienceNews
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 2019 field season.
An Integrated Framework for Ecological Drought Across Riverscapes of North America
Climate change is increasing extreme droughts events, posing a threat to freshwater ecosystems, particularly with human demands for diminishing water supplies.
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...
Publications
Drought-mediated extinction of an arid-land amphibian: Insights from a spatially explicit dynamic occupancy model
Understanding how natural and anthropogenic processes affect population dynamics of species with patchy distributions is critical to predicting their responses to environmental changes. Despite considerable evidence that demographic rates and dispersal patterns vary temporally in response to an array of biotic and abiotic processes, few...
Muths, Erin L.; Zylstra, Erin R; Swann, Don E; Hossack, Blake R.; Steidl, Robert J Adding invasive species bio-surveillance to the U.S. Geological Survey streamgage network
The costs of invasive species in the United States alone are estimated to exceed US$100 billion per year so a critical tactic in minimizing the costs of invasive species is the development of effective, early-detection systems. To this end, we evaluated the efficacy of adding environmental (e)DNA surveillance to the U.S. Geological Survey (USGS)...
Sepulveda, Adam J.; Schmidt, Christian; Amberg, Jon J.; Hutchins, Patrick R.; Stratton, Christian; Mebane, Christopher A.; Laramie, Matthew; Pilliod, David Epidemic growth rates and host movement patterns shape management performance for pathogen spillover at the wildlife-livestock interface
Managing pathogen spillover at the wildlife–livestock interface is a key step towards improving global animal health, food security and wildlife conservation. However, predicting the effectiveness of management actions across host–pathogen systems with different life histories is an on-going challenge since data on intervention effectiveness are...
Manlove, K.R.; Sampson, L. M.; Borremans, B.; Cassirer, E. Frances; Miller, R. S.; Pepin, K.; Besser, T. E.; Cross, Paul