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Aspen ecology in Rocky Mountain National Park: Age distribution, genetics, and the effects of elk herbivory

With the exception of Aspen, coniferous species dominate the forests of the Rocky Mountains (Populus tremuloides Michx.; Peet, 2000). The establishment of new aspen stands in the central Rocky Mountains generally follows major disturbances, particularly forest fires, with new stems sprouting from surviving root systems and with rare establishment More...

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Using Genetic Modeling to Assess the Health and Status of Manatee Populations

Biologists in the Sirenia Project at the U.S. Geological Survey (USGS) Florida Integrated Science Center (FISC) in Gainesville, FL, are currently identifying and mapping the genetic material of manatees. Their goal is to better understand and predict the manatee's ability to react to environmental stimuli, such as prolonged periods of cold More...

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Grizzly Bear and Black Bear Ecology

The grizzly bears in Glacier National Park represent the keystone of the Northern Continental Divide Ecosystem population in NW Montana. Because of its proximity to Canadian bear populations, large land area, and high proportion of designated wilderness and national park lands, the Northern Continental Divide Ecosystem has the best long-term More...

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Conservation Genetics Lab

The Conservation Genetics Lab carries out molecular analysis, pedigree analysis, modeling, data management, and cryogenic sample repository. As a part of this research, the lab investigates the effectiveness of molecular markers used to enhance enforcement of the Endangered Species Act policy. During the past 15 years, this research has involved More...

  • image of a frog (anura)

Viral Tracking of Wildlife Corridors across the Rocky Mountains

Researchers at the USGS Northern Rocky Mountain Science Center (NOROCK) and their collaborators at Penn State University are using viral genetics to estimate contact patterns of mule deer and elk across several states in the Rocky Mountain region. By linking their sampling efforts with chronic wasting disease (CWD) surveys in Montana, Wyoming, More...

  • Feeding time at an elk feedground in Wyoming - March 2008. Photo credit: Vicki Patrek, USGS

Monitoring Grizzly Bear Populations using DNA

This is an overview of the Northern Divide Grizzly Bear Project, Monitoring Grizzly Bear Populations using DNA allows identification of species, sex, and individuals from DNA extracted from bear hair and scats without handling bears. The data will be used to design a non-intrusive population trend monitoring scheme. This resource includes More...

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National Resources Monitoring Partnership (NRMP)

Natural resource managers face complex decisions that require a clear understanding of the status of wildlife populations and their habitats. Monitoring is key to making effective management decisions and evaluating the outcomes of those decisions. The goal of NRMP is to improve the accessibility of monitoring efforts to resource managers to aid More...

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National Resources Monitoring Partnership (NRMP) Newsletter

Natural Resource Monitoring Partnership (NRMP) is a collaborative effort by the natural resource management community to improve monitoring efforts in order to support effective evaluation and decision-making by sharing information on monitoring projects and protocols. The Natural Resource Monitoring Partnership was built for easy access to More...

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Conservation Genetics: Mammals

This web page presents samples of genetics and genomics research from the USGS Biological Resources Discipline about the conservation genetics of mammals.

  • Underwater view of a manatee in Crystal River, Florida

Sea otter population status and changes in Alaska

A web page to introduce research by the USGS Alaska Science Center on sea otter population status and changes in Alaska. Provides some background on why the research is needed, research objectives, and a listing of publications by project staff.

  • full body view of sea otter under water

Use of remote camera systems to investigate efficiency of DNA-based sampling methods

Remote cameras are used world-wide to address a variety of research and management objectives for wildlife species that are often difficult to find track, and capture. This project investigates how grizzly bears (Ursus arctos) and black bears (U. americanus) and other wildlife species respond to baited, barbed wire hair traps, providing more More...

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