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Terrestrial Mammals

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Terrestrial Mammal Research

Understanding the population dynamics, predator/prey relationships and habitat ecology of terrestrial mammals, such as caribou and muskoxen, is critical for the management of these species and their habitats in Alaska.
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Terrestrial Mammal Research

Understanding the population dynamics, predator/prey relationships and habitat ecology of terrestrial mammals, such as caribou and muskoxen, is critical for the management of these species and their habitats in Alaska.
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Tracking and Modeling the Population of the Louisiana Black Bear Using “BearTRAK”

"BearTrak" is an app that provides a central repository for Louisiana black bear tracking data, allowing managers to access information more quickly and reliably. USGS science was used in the decision to delist the species from the Endangered Species Act in 2016. Louisiana Department of Wildlife and Fisheries continues to monitor the Louisiana black bear population.
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Tracking and Modeling the Population of the Louisiana Black Bear Using “BearTRAK”

"BearTrak" is an app that provides a central repository for Louisiana black bear tracking data, allowing managers to access information more quickly and reliably. USGS science was used in the decision to delist the species from the Endangered Species Act in 2016. Louisiana Department of Wildlife and Fisheries continues to monitor the Louisiana black bear population.
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Mapping wild horse densities across broad landscapes of the Western United States

Researchers at USGS are using historical wild horse survey and monitoring records to conduct a study of horse density across sagebrush ecosystems of the western United States. Researchers will develop generalized density maps for the species that will enhance concurrent evaluations into the ecological effects of wild horse populations.
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Mapping wild horse densities across broad landscapes of the Western United States

Researchers at USGS are using historical wild horse survey and monitoring records to conduct a study of horse density across sagebrush ecosystems of the western United States. Researchers will develop generalized density maps for the species that will enhance concurrent evaluations into the ecological effects of wild horse populations.
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Health and Energetics of Polar Bears

The warming climate has the potential to drive significant changes in the health and energetics of Arctic fauna, particularly those dependent on sea ice habitats like polar bears. An animal’s health and energetic state reflects the interaction between its behavioral choices and the environment. Because of this, measuring changes in health and energetics has potential for revealing important...
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Health and Energetics of Polar Bears

The warming climate has the potential to drive significant changes in the health and energetics of Arctic fauna, particularly those dependent on sea ice habitats like polar bears. An animal’s health and energetic state reflects the interaction between its behavioral choices and the environment. Because of this, measuring changes in health and energetics has potential for revealing important...
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Bighorn Sheep and Mountain Goat Research in Western National Park Units

Mountain goat and bighorn sheep are iconic symbols of many national lands in the West. Both species have limited distributions that can be difficult to observe and face multiple stressors including disease, increasing recreation in remote areas, and shifting weather regimes that influence their forage and thermoregulation. As species with relatively small population sizes, understanding...
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Bighorn Sheep and Mountain Goat Research in Western National Park Units

Mountain goat and bighorn sheep are iconic symbols of many national lands in the West. Both species have limited distributions that can be difficult to observe and face multiple stressors including disease, increasing recreation in remote areas, and shifting weather regimes that influence their forage and thermoregulation. As species with relatively small population sizes, understanding...
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North American Bat Monitoring Program (NABat)

North American bats face unprecedented threats including habitat loss and fragmentation, white-nose syndrome, wind energy development, and climate change. However, it is difficult to evaluate the impacts of these threats due to a lack of basic information about the distribution and abundance of bats across the continent. Although bat monitoring has long been conducted in individual areas and for...
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North American Bat Monitoring Program (NABat)

North American bats face unprecedented threats including habitat loss and fragmentation, white-nose syndrome, wind energy development, and climate change. However, it is difficult to evaluate the impacts of these threats due to a lack of basic information about the distribution and abundance of bats across the continent. Although bat monitoring has long been conducted in individual areas and for...
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Conservation Genetics of the Hawaiian Hoary Bat

The Hawaiian Hoary Bat ( Lasiurus semotus) or ʻōpeʻapeʻa is the only extant land mammal native to the Hawaiian archipelago and is listed as endangered due to apparent population declines, and a lack of knowledge concerning its distribution, abundance, and habitat needs. This study is designed to apply molecular techniques to document demographic information, assess genetic variability, describe...
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Conservation Genetics of the Hawaiian Hoary Bat

The Hawaiian Hoary Bat ( Lasiurus semotus) or ʻōpeʻapeʻa is the only extant land mammal native to the Hawaiian archipelago and is listed as endangered due to apparent population declines, and a lack of knowledge concerning its distribution, abundance, and habitat needs. This study is designed to apply molecular techniques to document demographic information, assess genetic variability, describe...
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USGS research on the effects of renewable energy on wildlife

Renewable energy development, such as solar and wind energy, is growing in the United States and is expected to continue expanding for the foreseeable future. However, renewable energy infrastructure can be a risk to some wildlife including threatened and endangered species. Wildlife managers and energy developers need wildlife risks to be assessed and effective strategies to mitigate those risks...
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USGS research on the effects of renewable energy on wildlife

Renewable energy development, such as solar and wind energy, is growing in the United States and is expected to continue expanding for the foreseeable future. However, renewable energy infrastructure can be a risk to some wildlife including threatened and endangered species. Wildlife managers and energy developers need wildlife risks to be assessed and effective strategies to mitigate those risks...
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Understanding Greater Everglades Mammal Communities within and adjacent to the Arthur R. Marshall Loxahatchee National Wildlife Refuge

WARC Researchers are using a variety of methods to assess mammal communities across the Greater Everglades.
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Strategic Habitat Conservation for Beach Mice (Peromyscus polionotus ssp.)

WARC researchers partnered with beach mice managers and biologists to estimate habitat objectives and the amount of effort needed to achieve the habitat objective (i.e., management efficiency) for three beach mice subspecies in Florida’s panhandle.
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Strategic Habitat Conservation for Beach Mice (Peromyscus polionotus ssp.)

WARC researchers partnered with beach mice managers and biologists to estimate habitat objectives and the amount of effort needed to achieve the habitat objective (i.e., management efficiency) for three beach mice subspecies in Florida’s panhandle.
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Pacific Pocket Mouse Monitoring and Research Program

Once thought to be extinct, the Pacific pocket mouse ( Perognathus longimembris pacificus) was rediscovered in 1993 and is currently found at three population sites along the southern California coast. USGS researchers and their partners developed a comprehensive long-term research and monitoring plan to assess the status and trends of Pacific pocket mouse and identify important drivers of...
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Pacific Pocket Mouse Monitoring and Research Program

Once thought to be extinct, the Pacific pocket mouse ( Perognathus longimembris pacificus) was rediscovered in 1993 and is currently found at three population sites along the southern California coast. USGS researchers and their partners developed a comprehensive long-term research and monitoring plan to assess the status and trends of Pacific pocket mouse and identify important drivers of...
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Bison Conservation

USGS science in support of the Department of the Interior's Bison Conservation Initiative.
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Bison Conservation

USGS science in support of the Department of the Interior's Bison Conservation Initiative.
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