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Explore Search: Bears

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Ecological change drives a decline in mercury concentrations in southern Beaufort Sea polar bears

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Connectivity among subpopulations of Louisiana black bears as estimated by a step selection function

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Use of isotopic sulfur to determine whitebark pine consumption by Yellowstone bears: a reassessment

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Use of subsistence-harvested whale carcasses by polar bears in the southern Beaufort Sea

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Harvesting wildlife affected by climate change: a modelling and management approach for polar bears

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Contributions of vital rates to growth of a protected population of American black bears

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The use of sea ice habitat by female polar bears in the Beaufort Sea

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Survey-based assessment of the frequency and potential impacts of recreation on polar bears

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Use of spatial capture–recapture to estimate density of Andean bears in northern Ecuador

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Conservation status of polar bears (Ursus maritimus) in relation to projected sea-ice declines

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Dynamics of a recolonizing population of black bears in the Ouachita Mountains of Oklahoma

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Reactions of grizzly bears, Ursus arctos horribilis, to wildfire in Yellowstone National Park, Wyoming

Photography
Three polar bears in water. left side is bears face close, center is bears face looking at you, right is part of bears' nose.

Adult male polar bear interacting with two other bears in the ocean
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Body size and lean mass of brown bears across and within four diverse ecosystems

State News Release
poster advertising USGS public lecture about brown bears in Alaska

Brown Bears, Sea Otters, and Seals, Oh My! —Unexpected interactions on the Katmai Coast

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Polar bears from space: Assessing satellite imagery as a tool to track Arctic wildlife

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Future for polar bears in a declining sea ice environment: What do we know?

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Geostatistical analysis of allele presence patterns among American black bears in eastern North Carolina

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The occupancy-abundance relationship and sampling designs using occupancy to monitor populations of Asian bears

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The impacts of human recreation on brown bears (Ursus arctos): A review and new management tool

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Possible effects of elk harvest on fall distribution of grizzly bears in the Greater Yellowstone Ecosystem

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The role of satellite telemetry data in 21st century conservation of polar bears (Ursus maritimus)

Presentations and Events

2017 March Public Lecture—Brown Bears, Sea Otters, and Seals, Oh My!
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Methods to estimate distribution and range extent of grizzly bears in the Greater Yellowstone Ecosystem

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Body and diet composition of sympatric black and grizzly bears in the Greater Yellowstone Ecosystem

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Genetic analysis of individual origins supports isolation of grizzly bears in the Greater Yellowstone Ecosystem

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Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis

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Landscape conditions predisposing grizzly bears to conflicts on private agricultural lands in the western USA

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Effect of hibernation and reproductive status on body mass and condition of coastal brown bears

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Relative influences of climate change and human activity on the onshore distribution of polar bears

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