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Rocky Mountain Region

USGS Region 7 Staff support and advise USGS Science Centers that provide numerous stakeholders with vital information about spatial distribution and temporal trends in critical minerals, energy resources, geology, water resources, native plants and wildlife, and hazards posed by earthquakes and landslides in Colorado, New Mexico, Utah, Wyoming and beyond.

News

A new framework for guiding management decisions for amphibians in an uncertain future

A new framework for guiding management decisions for amphibians in an uncertain future

USGS Colorado River Basin Actionable and Strategic Integrated Science and Technology (ASIST) Initiative Science Co-Development Virtual Workshop, June 24-25, 2025

USGS Colorado River Basin Actionable and Strategic Integrated Science and Technology (ASIST) Initiative Science Co-Development Virtual Workshop, June 24-25, 2025

USGS releases assessment of undiscovered oil and gas in Southwest Wyoming, Northwest Colorado

USGS releases assessment of undiscovered oil and gas in Southwest Wyoming, Northwest Colorado

Publications

Modeling current and future distribution of invasive tegu lizards along geopolitical boundaries in the contiguous United States: Implications for invasion threat Modeling current and future distribution of invasive tegu lizards along geopolitical boundaries in the contiguous United States: Implications for invasion threat

Historically, constrained temperature ranges limited the spread of invasive herpetofauna into temperate climates, but climate change is predicted to facilitate broader distributions. There are three species of tegu lizards native to South America and available in the pet trade that have a high risk of invasion and deleterious impacts to native ecosystems in the United States (US). There...
Authors
Amanda Marie Kissel, Catherine S. Jarnevich, Andrea F. Currylow, Amy A. Yackel Adams

Growth rate variation in Brown Treesnakes (Boiga irregularis): An invasive species of conservation concern Growth rate variation in Brown Treesnakes (Boiga irregularis): An invasive species of conservation concern

Somatic growth rate is a fundamental trait that influences metabolism, lifespan and reproductive maturity and is critical for understanding population dynamics and informing management actions. Brown Treesnakes (Boiga irregularis) introduced to Guam are highly invasive and can reproduce year-round without discrete cohorts. We compared snake size trajectories described by the...
Authors
Bjorn Lardner, Brian S. Cade, Julie A. Savidge, Gordon H. Rodda, Robert Reed, Amy A. Yackel Adams

Coelomic foreign bodies in wild-caught Python spp. in the Greater Everglades Ecosystem, Florida, USA Coelomic foreign bodies in wild-caught Python spp. in the Greater Everglades Ecosystem, Florida, USA

Burmese pythons (Python molurus bivittatus) and African rock pythons (Python sebae) have established invasive populations in southern Florida, severely disrupting local ecosystems. We analysed necropsy data from 2,179 pythons captured between 2006 and 2022, revealing nine cases of coelomic foreign bodies, primarily consisting of bird beaks, which presumably entered the coelom following...
Authors
Gretchen E. Anderson, McKayla M. Spencer, Ray W. Snow, Andrea Currylow, Frank N. Ridgley, Bryan G. Falk, Amy A. Yackel Adams

Science

Research to support conservation of America’s national mammal, the bison

Once numbering in the tens of millions, plains bison ( Bison bison bison) were nearly driven to extinction with only a few hundred individuals remaining by the late 19th century. Plains bison have since recovered to approximately 20,000 animals managed in conservation herds throughout North America, yet substantial challenges to their recovery remain. The Department of the Interior (DOI) stewards...
Research to support conservation of America’s national mammal, the bison

Research to support conservation of America’s national mammal, the bison

Once numbering in the tens of millions, plains bison ( Bison bison bison) were nearly driven to extinction with only a few hundred individuals remaining by the late 19th century. Plains bison have since recovered to approximately 20,000 animals managed in conservation herds throughout North America, yet substantial challenges to their recovery remain. The Department of the Interior (DOI) stewards...
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Geonarrative "Colorado River Basin's Millenium Drought--A Few Dry Decades or a New Normal?

USGS Scientists have created a new geonarrative with graphics, animations, and text providing information about whether the Basin could be managed for drought conditions (relatively short-term dry conditions) or for aridification (a much longer period of dry conditions). This geonarrative describes ways that USGS can provide information that informs decision making for those situations in the...
Geonarrative "Colorado River Basin's Millenium Drought--A Few Dry Decades or a New Normal?

Geonarrative "Colorado River Basin's Millenium Drought--A Few Dry Decades or a New Normal?

USGS Scientists have created a new geonarrative with graphics, animations, and text providing information about whether the Basin could be managed for drought conditions (relatively short-term dry conditions) or for aridification (a much longer period of dry conditions). This geonarrative describes ways that USGS can provide information that informs decision making for those situations in the...
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Developing structured science syntheses for use in NEPA analyses and decision making in the Bureau of Land Management

Science information is fundamental to understanding how proposed actions on public lands may impact the environment. However, agencies often have limited time to compile and synthesize existing science. We are working with land management agencies to develop a new type of science product— structured science syntheses—for facilitating the use of science information in public lands decisions.
Developing structured science syntheses for use in NEPA analyses and decision making in the Bureau of Land Management

Developing structured science syntheses for use in NEPA analyses and decision making in the Bureau of Land Management

Science information is fundamental to understanding how proposed actions on public lands may impact the environment. However, agencies often have limited time to compile and synthesize existing science. We are working with land management agencies to develop a new type of science product— structured science syntheses—for facilitating the use of science information in public lands decisions.
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