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

EcoLunch is s a forum for those in the environmental sciences to present their current and past work. Click below for upcoming talks!

Cloud Hosting

NOROCK in the News

NOROCK in the News

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

Nonnative Herbivores

News

Image: Prairie Pothole Dragonfly
October 12, 2017

NOROCK EcoLunch is a forum for students, researchers, visiting scientists and collaborators in the environmental sciences to present their current and past work. Presentations will range from brown bag discussions of ongoing projects to more formal seminar presentations. 

Profile of the North Fork of the Flathead River, Montana.
September 6, 2017

A new U.S. Geological Survey study provides a larger window into the future for understanding how seasonal stream temperatures may change in one of the most ecologically diverse ecosystems in North America – the Crown of the Continent Ecosystem, USA and Canada.

Ready to remove from the trap
August 16, 2017

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) traps and monitors grizzly bears for research and monitoring purposes. Here you will find trapping notifications for the 2017 field season.

Publications

Year Published: 2017

Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota

The Williston Basin, which includes parts of Montana, North Dakota, and South Dakota in the United States, has been a leading domestic oil and gas producing area. To better understand the potential effects of energy development on environmental resources in the Williston Basin, the U.S. Geological Survey, in cooperation with the Bureau of...

Post van der Burg, Max; Vining, Kevin C.; Frankforter, Jill D.
Post van der Burg, Max, Vining, K.C., Frankforter, J.D., eds., 2017, Potential effects of energy development on environmental resources of the Williston Basin in Montana, North Dakota, and South Dakota: U.S. Geological Survey Scientific Investigations Report 2017–5070–A–D, variously paged, https://doi.org/10.3133/sir20175070.

Year Published: 2017

Introduced American Bullfrog distribution and diets in Grand Teton National Park

Introduced American Bullfrogs (Lithobates catesbeianus) have been present in Grand Teton National Park since approximately the 1950s, but little is known about their distribution and potential impacts. In this study, we surveyed the current bullfrog distribution and spatial overlap with sympatric native amphibians in the park, and characterized...

Flynn, Lauren M; Kreofsky, Tess Marie; Sepulveda, Adam
Lauren M. Flynn, Tess M. Kreofsky and Adam J. Sepulveda. 2017. Introduced American Bullfrog Distribution and Diets in Grand Teton National Park. Northwest Science 91(3):244-256.

Year Published: 2017

No evidence for ecological segregation protecting native trout from invasive hybridization

We appreciate the comments of Young et al. (2017) on our recent paper (Muhlfeld et al., 2017) concerning spatiotemporal dynamics of hybridization between native westslope cutthroat trout (Oncorhynchus clarkii lewisi; WCT) and introduced coastal rainbow trout (Oncorhynchus mykiss irideus; RBT). Nevertheless, we believe there is no evidence for “...

Kovach, Ryan; Muhlfeld, Clint C.; Al-Chokhachy, Robert K.; Amish, Stephen J.; Kershner, Jeffrey L.; Leary, Robb F.; Lowe, Winsor H.; Luikart, Gordon; Matson, Phil; Schmetterling, David; Shepard, Bradley; Westley, Peter A. H.; Whited, Diane; Whiteley, Andrew R.; Allendorf, Fred W.
Kovach, Muhlfeld et al. 2017. Global Change Biology. No evidence for ecological segregation protecting native trout from invasive hybridization.