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Climate Change

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Polar Bear Research

Polar bears (Ursus maritimus) are one of 4 marine mammal species managed by the U.S. Department of Interior. The USGS Alaska Science Center leads long–term research on polar bears to inform local, state, national and international policy makers regarding conservation of the species and its habitat. Our studies, ongoing since 1985, are focused on population dynamics, health and energetics...
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Polar Bear Research

Polar bears (Ursus maritimus) are one of 4 marine mammal species managed by the U.S. Department of Interior. The USGS Alaska Science Center leads long–term research on polar bears to inform local, state, national and international policy makers regarding conservation of the species and its habitat. Our studies, ongoing since 1985, are focused on population dynamics, health and energetics...
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Modeling Songbird Density-Habitat Relationships to Predict Population Responses to Environmental Change Within Pinyon-juniper and Sagebrush Ecosystems

Within areas of overlapping sagebrush and pinyon-juniper ecosystems, wildlife populations are declining due to habitat fragmentation and degradation, changing climate, and human development. However, management to bolster species associated with one ecosystem may result in negative consequences for species associated with the other. Thus, land managers are challenged with balancing which system to...
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Modeling Songbird Density-Habitat Relationships to Predict Population Responses to Environmental Change Within Pinyon-juniper and Sagebrush Ecosystems

Within areas of overlapping sagebrush and pinyon-juniper ecosystems, wildlife populations are declining due to habitat fragmentation and degradation, changing climate, and human development. However, management to bolster species associated with one ecosystem may result in negative consequences for species associated with the other. Thus, land managers are challenged with balancing which system to...
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Northeast Amphibian Research and Monitoring Initiative

The U.S. Geological Survey’s Eastern Ecological Science Center is home to the Northeast Amphibian Research and Monitoring Initiative (NEARMI), one of 7 ARMI regions across the United States. NEARMI works on public lands in thirteen states from Maine to Virginia, including many National Parks and National Wildlife Refuges.
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Northeast Amphibian Research and Monitoring Initiative

The U.S. Geological Survey’s Eastern Ecological Science Center is home to the Northeast Amphibian Research and Monitoring Initiative (NEARMI), one of 7 ARMI regions across the United States. NEARMI works on public lands in thirteen states from Maine to Virginia, including many National Parks and National Wildlife Refuges.
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Brook trout vulnerability to drought: eastern component of USGS national integrated ecohydrological research

There is a growing and urgent need to develop and implement innovative strategies to research, monitor, and manage freshwater resources as societal demands escalate simultaneously with climate-driven changes in water availability.
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Brook trout vulnerability to drought: eastern component of USGS national integrated ecohydrological research

There is a growing and urgent need to develop and implement innovative strategies to research, monitor, and manage freshwater resources as societal demands escalate simultaneously with climate-driven changes in water availability.
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Use and History of the North Pacific Pelagic Seabird Database (NPPSD)

Data on the distribution and abundance of seabirds at sea have been used for many decades to assist in understanding the marine ecology of seabirds away from their breeding colonies, measure population status and trends, assess the impact of human activities on ocean habitats and fish stocks, and to identify critical marine habitats for seabirds.
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Use and History of the North Pacific Pelagic Seabird Database (NPPSD)

Data on the distribution and abundance of seabirds at sea have been used for many decades to assist in understanding the marine ecology of seabirds away from their breeding colonies, measure population status and trends, assess the impact of human activities on ocean habitats and fish stocks, and to identify critical marine habitats for seabirds.
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Strategic Habitat Conservation for Brown Pelican

WARC researchers partnered with managers and species experts to develop a Bayesian network model and a geospatial habitat characteristics dataset to predict the number of Brown Pelican breeding pairs on islands in the northern Gulf of Mexico.
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Strategic Habitat Conservation for Brown Pelican

WARC researchers partnered with managers and species experts to develop a Bayesian network model and a geospatial habitat characteristics dataset to predict the number of Brown Pelican breeding pairs on islands in the northern Gulf of Mexico.
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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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Conservation and Restoration of Native Freshwater Mussels

Freshwater mussels are the most imperiled group of animals in North America, with 66% of species at risk. Mussel populations are declining globally, but the factors contributing to these declines are largely unknown. Habitat fragmentation and alteration, point- and non-point source pollution, navigation-related impacts, and exotic species introductions are thought to be responsible for mussel...
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Conservation and Restoration of Native Freshwater Mussels

Freshwater mussels are the most imperiled group of animals in North America, with 66% of species at risk. Mussel populations are declining globally, but the factors contributing to these declines are largely unknown. Habitat fragmentation and alteration, point- and non-point source pollution, navigation-related impacts, and exotic species introductions are thought to be responsible for mussel...
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Assessing Mammalian Predator Control to Protect Endangered Birds at Haleakalā National Park

USGS researchers assessed trends in non-native mammalian predator trapping methods designed to protect endangered ʻuaʻu and nēnē at Haleakalā National Park, Hawaiʻi.
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Assessing Mammalian Predator Control to Protect Endangered Birds at Haleakalā National Park

USGS researchers assessed trends in non-native mammalian predator trapping methods designed to protect endangered ʻuaʻu and nēnē at Haleakalā National Park, Hawaiʻi.
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Climate-driven state shifts in the Prairie Pothole Region: assessing future impacts relevant to the management of wetland habitats critical to waterfowl

The Prairie Pothole Region (PPR) covers parts of five states and three Canadian provinces. The region contains millions of wetlands that annually produce 50-80% of the continent’s duck population. Previous modeling efforts indicated that climate change would result in a shift of waterfowl habitat from the central PPR to the southeast PPR where the majority of wetlands have been drained. However...
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Climate-driven state shifts in the Prairie Pothole Region: assessing future impacts relevant to the management of wetland habitats critical to waterfowl

The Prairie Pothole Region (PPR) covers parts of five states and three Canadian provinces. The region contains millions of wetlands that annually produce 50-80% of the continent’s duck population. Previous modeling efforts indicated that climate change would result in a shift of waterfowl habitat from the central PPR to the southeast PPR where the majority of wetlands have been drained. However...
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Condition of Forage Fish in Prince William Sound During the Marine Heatwave

Changes in the body condition of a key forage fish species, Pacific sand lance (Ammodytes personatus), are examined to understand how energy transfer to predators may have been disrupted during the recent marine heatwave in the North Pacific (late 2013 to mid 2016).
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Condition of Forage Fish in Prince William Sound During the Marine Heatwave

Changes in the body condition of a key forage fish species, Pacific sand lance (Ammodytes personatus), are examined to understand how energy transfer to predators may have been disrupted during the recent marine heatwave in the North Pacific (late 2013 to mid 2016).
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Western Bumble Bee and Native Pollinator Research

The western bumble bee was historically one of the most common bumble bees across the western U.S. and Canada. However, our research and others found it has declined substantially across its range and the U.S. Fish and Wildlife Service is considering it for listing under the Endangered Species Act. Bureau of Land Management, National Park Service, and other land managers need information to inform...
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Western Bumble Bee and Native Pollinator Research

The western bumble bee was historically one of the most common bumble bees across the western U.S. and Canada. However, our research and others found it has declined substantially across its range and the U.S. Fish and Wildlife Service is considering it for listing under the Endangered Species Act. Bureau of Land Management, National Park Service, and other land managers need information to inform...
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