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Rocky Mountain Region

U.S. Geological Survey (USGS) Region 7: Upper Colorado Basin includes the States of Colorado, New Mexico, Utah, and Wyoming. USGS Science Centers conduct interdisciplinary research and monitoring related to natural resources, ecology, climate, and natural hazards. Data, analyses, and tools developed by USGS staff help stakeholders to make sustainable management decisions.

News

From Lake to Table: $3 Million Investment Helps Track Great Salt Lake's Future

From Lake to Table: $3 Million Investment Helps Track Great Salt Lake's Future

USGS awards $2.5 million to state geological surveys for mine waste projects

USGS awards $2.5 million to state geological surveys for mine waste projects

Trees in cities are beyond shady

Trees in cities are beyond shady

Publications

Using mercury and lead stable isotopes to assess mercury, lead, and trace metal source contributions to Great Salt Lake, Utah, USA

Great Salt Lake is a critical habitat for migratory birds that is threatened by elevated metal concentrations, including mercury (Hg) and lead (Pb), and is subject to severe hydrologic changes, such as declining lake level. When assessing metal profiles recorded in Great Salt Lake sediment, a large data gap exists regarding the sources of metals within the system, which is complicated by various s
Authors
Samuel Francisco Lopez, Sarah E. Janssen, Michael T. Tate, Diego P. Fernandez, Christopher R. Anderson, Grace Jane Armstrong, Thomas Charng-Shuen Wang, William P. Johnson

Controls on lake pelagic primary productivity: Formalizing the nutrient-color paradigm

Understanding controls on primary productivity is essential for describing ecosystems and their responses to environmental change. Lake primary production is strongly controlled by inputs of nutrients and colored dissolved organic matter. While past studies have developed mathematical models of this nutrient-color paradigm, broad empirical tests of these models are scarce. We used data from 58 div
Authors
Isabella Oleksy, Christopher T. Solomon, Stuart E. Jones, Carly Olson, Brittni Bertolet, Rita Adrian, Sheel Bansal, Jill Baron, Soren Brothers, Sudeep Chandra, Hsiu-Mei Chou, William Colom-Montero, Joshua Culpeper, Elvira de Eyto, Matthew Farragher, Sabine Hilt, Kristen T. Holeck, Garabet Kazanjian, Marcus Klaus, Jennifer Klug, Jan Köhler, Alo Laas, Erik Lundin, Alice Parkes, Kevin C. Rose, Lars Rustam, James A. Rusak, Facundo Scordo, Michael J. Vanni, Piet Verburg, Gesa A. Weyhenmeyer

Imperiled Great Basin terminal lakes: Synthesizing ecological and hydrological science gaps and research needs for waterbird conservation

Terminal lakes are declining globally because of human water demands, drought, and climate change. Through literature synthesis and feedback from the resource and conservation community, we review the state of research for terminal lakes in the Great Basin of the United States, which support millions of waterbirds annually, to prioritize ecological and hydrologic information needs. From an ecologi
Authors
Garth Herring, Ashley L. Whipple, Cameron L. Aldridge, Bryce Alan Pulver, Collin A. Eagles-Smith, Rich D. Inman, Elliott Matchett, Adrian P. Monroe, Elizabeth Kari Orning, Benjamin Seward Robb, Jessica E. Shyvers, Bryan C. Tarbox, Nathan D. Van Schmidt, Cassandra Smith, Matthew J. Holloran, Cory T. Overton, David O'Leary, Michael L. Casazza, Rebecca Frus

Science

Developing habitat models for rare plants to inform decision making on multiple-use public lands

Public lands provide important habitat for many rare plants. However, public lands often need to accommodate many other uses, including traditional and renewable energy development, in addition to conservation. We are working with the Bureau of Land Management to coproduce ensemble habitat suitability models that can inform agency planning and permitting decisions that may impact rare plants.
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Developing habitat models for rare plants to inform decision making on multiple-use public lands

Public lands provide important habitat for many rare plants. However, public lands often need to accommodate many other uses, including traditional and renewable energy development, in addition to conservation. We are working with the Bureau of Land Management to coproduce ensemble habitat suitability models that can inform agency planning and permitting decisions that may impact rare plants.
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Developing a step-by-step process for assessing cumulative effects in the Bureau of Land Management

The National Environmental Policy Act (NEPA) requires federal agencies to assess potential impacts of proposed actions as part of their decision-making processes. Assessing potential cumulative effects is a challenging component of NEPA analyses. The USGS is working with the Bureau of Land Management to develop a process that public land managers can use to strengthen cumulative effects analyses.
link

Developing a step-by-step process for assessing cumulative effects in the Bureau of Land Management

The National Environmental Policy Act (NEPA) requires federal agencies to assess potential impacts of proposed actions as part of their decision-making processes. Assessing potential cumulative effects is a challenging component of NEPA analyses. The USGS is working with the Bureau of Land Management to develop a process that public land managers can use to strengthen cumulative effects analyses.
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Modeling chronic wasting disease prevalence through time to investigate mechanisms of spread in deer and elk in Wyoming

Diseases are challenging to manage in wild ungulate populations, particularly when there are many ways the disease can spread. Wildlife management agencies often need to take action to control disease spread, but it is unclear which actions are most effective in constraining disease because the importance of different spread mechanisms is not fully understood. This project will aid state wildlife...
link

Modeling chronic wasting disease prevalence through time to investigate mechanisms of spread in deer and elk in Wyoming

Diseases are challenging to manage in wild ungulate populations, particularly when there are many ways the disease can spread. Wildlife management agencies often need to take action to control disease spread, but it is unclear which actions are most effective in constraining disease because the importance of different spread mechanisms is not fully understood. This project will aid state wildlife...
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