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. We are part of the Northwest Region of the USGS and our scientists work on diverse issues such as wildlife health, invasive species, climate, endangered species and much more. Click on Science to begin exploring the places we go and the species and landscapes we study.

NOROCK EcoLunch!

NOROCK EcoLunch!

Robb Diehl presents: Machine learning basics: lessons learned and a real-world example

About EcoLunch

NOROCK in the News

NOROCK in the News

Recent news and media featuring NOROCK Science. Click below for our most recent features.

Glaciers Gone

News

This image shows the perimeter of Sperry Glacier in Glacier National Park in 1966,1998, 2005, and 2015.
May 10, 2017

The warming climate has dramatically reduced the size of 39 glaciers in Montana since 1966, some by as much as 85 percent, according to data released by the U.S. Geological Survey and Portland State University.

Ready to remove from the trap
May 2, 2017

As part of ongoing efforts required under the Endangered Species Act to monitor the population of grizzly bears in the Yellowstone Ecosystem, the Interagency Grizzly Bear Study Team (IGBST) traps and monitors grizzly bears for research and monitoring purposes. Here you will find trapping notifications for the 2017 field season.

Close-up of non-hybridized westslope cutthroat trout in Montana
April 4, 2017

Hybridization, or the interbreeding of species, is increasing between native and invasive trout across the northern Rocky Mountains, according to a study released Tuesday by the U.S. Geological Survey and partners.

Publications

Unraveling the disease consequences and mechanisms of modular structure in animal social networks
Year Published: 2017

Unraveling the disease consequences and mechanisms of modular structure in animal social networks

Disease risk is a potential cost of group living. Although modular organization is thought to reduce this cost in animal societies, empirical evidence toward this hypothesis has been conflicting. We analyzed empirical social networks from 43 animal species to motivate our study of the epidemiological consequences of modular structure in animal societies.

Estimating loss of Brucella abortus antibodies from age-specific serological data in elk
Year Published: 2017

Estimating loss of Brucella abortus antibodies from age-specific serological data in elk

Serological data are one of the primary sources of information for disease monitoring in wildlife. However, the duration of the seropositive status of exposed individuals is almost always unknown for many free-ranging host species. Directly estimating rates of antibody loss typically requires difficult longitudinal sampling of individuals following seroconversion.

Using decision analysis to support proactive management of emerging infectious wildlife diseases
Year Published: 2017

Using decision analysis to support proactive management of emerging infectious wildlife diseases

Despite calls for improved responses to emerging infectious diseases in wildlife, management is seldom considered until a disease has been detected in affected populations. Reactive approaches may limit the potential for control and increase total response costs. An alternative, proactive management framework can identify immediate actions that reduce future impacts even before a disease is...