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.



NOROCK EcoLunch is a forum for students, researchers, visiting scientists and collaborators in the environmental sciences to present their current and past work.

Upcoming Talk

NOROCK in the News

NOROCK in the News

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

Trapping Grizzlies


A flock of sage grouse fly above the sage steppe.
February 23, 2018

The sheer number of scientific publications related to greater sage-grouse research can be a challenge for managers to navigate when updating plans for managing greater sage-grouse and sagebrush ecosystems. To assist in this process, the USGS reviewed and summarized scientific literature published since January 1, 2015.

Mosquito, Aedes aegypti
December 7, 2017

Sharing isn’t always polite, judging by this EarthWord. 

Screenshot from the USGS video, "Living With Fire."
November 30, 2017

Visit our new USGS fire webpage to learn how USGS fire science is making a difference


Year Published: 2018

On the exchange of sensible and latent heat between the atmosphere and melting snow

The snow energy balance is difficult to measure during the snowmelt period, yet critical for predictions of water yield in regions characterized by snow cover. Robust simplifications of the snowmelt energy balance can aid our understanding of water resources in a changing climate. Research to date has demonstrated that the net turbulent flux (FT)...

Stoy, Paul C.; Peitzsch, Erich H.; Wood, David; Rottinghaus, Daniel; Wohlfahrtd, Georg; Goulden, Michael; Ward, Helen
Paul C. Stoy, Erich Peitzsch, David Wood, Daniel Rottinghaus, Georg Wohlfahrt, Michael Goulden, Helen Ward, On the exchange of sensible and latent heat between the atmosphere and melting snow, Agricultural and Forest Meteorology, Volume 252, 15 April 2018, Pages 167-174, ISSN 0168-1923,

Year Published: 2018

Vegetation responses to sagebrush-reduction treatments measured by satellites

Time series of vegetative indices derived from satellite imagery constitute tools to measure ecological effects of natural and management-induced disturbances to ecosystems. Over the past century, sagebrush-reduction treatments have been applied widely throughout western North America to increase herbaceous vegetation for livestock and wildlife....

Johnston, Aaron N.; Beever, Erik; Merkle, Jerod A.; Chong, Geneva W.
Johnston, A. N., Beever, E. A., Merkle, J. A., Chong, G. 2018. Vegetation responses to sagebrush-reduction treatments measured by satellites. Ecological Indicators 87:66–76.

Year Published: 2018

Demographic modelling reveals a history of divergence with gene flow for a glacially tied stonefly in a changing post-Pleistocene landscape

AimClimate warming is causing extensive loss of glaciers in mountainous regions, yet our understanding of how glacial recession influences evolutionary processes and genetic diversity is limited. Linking genetic structure with the influences shaping it can improve understanding of how species respond to environmental change. Here, we used genome-...

Hotaling, Scott; Muhlfeld, Clint C.; Giersch, J. Joseph; Ali, Omar; Jordan, Steve; Miller, Michael R.; Luikart, Gordon; Weisrock, David W.