Northern Rocky Mountain Science Center


Our Northern Rocky Mountain Science Center's priority is to continue the important work of the Department of the Interior and the USGS, while also maintaining the health and safety of our employees and community.  Based on guidance from the White House, the CDC, and state and local authorities, we are shifting our operations to a virtual mode and have minimal staffing within our offices. If you need additional assistance, please contact Claudia Regan at or Judy O'Dwyer at

Connect to NOROCK

Featured Research

Featured Research

Click here to learn about the use of DNA in detecting aquatic invasive species & pathogens.

Detecting Invasives

NOROCK in the News

NOROCK in the News

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

Climate & Invasives


Date published: December 28, 2020

Chronic Wasting Disease: Can Science Save Our Dear Deer?

What’s in a name? Chronic wasting disease sounds ominous, too descriptive for comfort, almost impolite in its directness. It is, in fact, a truthful name for a disease and a real threat to North America’s cervids.

Date published: September 18, 2020

Use of Robotic DNA Samplers That Can Rapidly Detect Invasive Aquatic Species

USGS researchers and their collaborators demonstrated the efficacy of using robotic environmental DNA samplers for bio surveillance in freshwater systems, showing that samples collected, processed, and preserved by robotic sampler detect organism DNA in the environment at rates comparable to those collected traditionally by human technicians.

Date published: August 12, 2020

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 2020 field season.


Publication Thumbnail
Year Published: 2021

Thermal constraints on energy balance, behaviour and spatial distribution of grizzly bears

1. Heat dissipation limit theory posits that energy available for growth and reproduction in endotherms is limited by their ability to dissipate heat. In mammals, endogenous heat production increases markedly during gestation and lactation, and thus female mammals may be subject to greater thermal constraints on energy expenditure than males. Such...

Rogers, Savannah A.; Robbins, Charlie T.; Mathewson, Paul D.; Carnahan, Anthony M.; van Manen, Frank T.; Haroldson, Mark A.; Porter, Warren P.; Rogers, Taylor R.; Soule, Terrence; Long, Ryan A.

Publication Thumbnail
Year Published: 2020

An evaluation of noninvasive sampling techniques for Malayan sun bears

Traditional mark–recapture studies to estimate abundance and trends of Malayan sun bear (Helarctos malayanus) populations are impeded by logistics of live-trapping wild individuals. The development of noninvasive sampling techniques for monitoring sun bear populations is therefore crucial for targeted conservation action. Sun bears have short fur...

Tee, Thye Lim; Lai, Wai Ling; Ju Wei, Terence Kok; Shern, Ooi Zhuan; van Manen, Frank T.; Sharp, Stuart P.; Wong, Siew Te; Chew, Jactty; Ratnayeke, Shyamala

Publication Thumbnail
Year Published: 2020

Brown Bear (Ursus arctos; North America)

This chapter comprises the following sections: names, taxonomy, subspecies and distribution, descriptive notes, habitat, movements and home range, activity patterns, feeding ecology, reproduction and growth, behavior, parasites and diseases, status in the wild, and status in captivity.

Haroldson, Mark A.; Clapham, Melanie; Costello, Cecily M.; Gunther, Kerry A.; Kendall, Kate; Miller, Sterling; Pigeon, Karine; Proctor, Michael F.; Rode, Karyn D.; Servheen, Christopher; Stenhouse, Gordon; van Manen, Frank T.