Northern Rocky Mountain Science Center (NOROCK)


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.

Featured Research

Featured Research

Explore NOROCK research

Disease & Invasives

NOROCK in the News

NOROCK in the News

Click here for the most recent media and news on NOROCK science.

Pika's Future


Date published: May 17, 2019

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. 

Date published: March 20, 2019

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...

Date published: December 4, 2018

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.


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Year Published: 2019

Statistical power of dynamic occupancy models to identify temporal change: Informing the North American Bat Monitoring Program

Dynamic occupancy models provide a flexible framework for estimating and mapping species occupancy patterns over space and time for large-scale monitoring programs (e.g., the North American Bat Monitoring Program (NABat), the Amphibian Research and Monitoring Initiative). Challenges for designing surveys using the dynamic occupancy modeling...

Banner, Katherine; Irvine, Kathryn M.; Rodhouse, Tom J; Donner, Deahn M.; Litt, Andrea R.
Banner, KM, Irvine, KM, Rodhouse, TJ, Dohner, D, Litt AR. 2019. Statistical power of dynamic occupancy models to identify temporal change: informing the North

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Year Published: 2019

Effect of amphibian chytrid fungus (Batrachochytrium dendrobatidis) on apparent survival of frogs and toads in the western USA

Despite increasing interest in determining the population-level effects of emerging infectious diseases on wildlife, estimating effects of disease on survival rates remains difficult. Even for a well-studied disease such as amphibian chytridiomycosis (caused by the fungus Batrachochytrium dendrobatidis [Bd]), there are few estimates of...

Russell, Robin E.; Halstead, Brian J.; Mosher, Brittany; Muths, Erin L.; Adams, Michael J.; Campbell Grant, Evan H.; Fisher, Robert N.; Kleeman, Patrick M.; Backlin, Adam R.; Pearl, Christopher; Honeycutt, R. Ken; Hossack, Blake R.

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Year Published: 2019

Monitoring five-needle pine on Bureau of Land Management lands in Wyoming summary report for 2013, 2014, 2016, 2017

Whitebark pine (Pinus albicaulis) grows at high elevations and in subalpine communities in the Pacific Northwest and Northern Rocky Mountains. Limber pine (Pinus flexilis) occurs in western North America across a broad elevational gradient from the Canadian Rocky Mountains into parts of New Mexico and Arizona and from southern California eastward...

Erin Shanahan; Kristin Legg; Rob Daley; Irvine, Kathryn; Siri Wilmoth; Joshua Jackson
Shanahan, E., K. Legg, R. Daley, K. M. Irvine, S. Wilmoth, and J. Jackson. 2019. Monitoring fiveneedle pine on Bureau of Land Management lands in Wyoming: Summary report for 2013, 2014,2016, 2017. Natural Resource Report NPS/GRYN/NRR—2019/1931. National Park Service, Fort Collins, Colorado.