This is B-roll video of POV Polar Bear Collar Cam B-roll 2019, 2021, and 2022.
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, distribution and movements, maternal denning, and methods development. The majority of our research focuses on the two polar bear subpopulation’s whose range includes Alaska: the Southern Beaufort Sea subpopulation that ranges between the North Slope of Alaska and western Canada and the Chukchi Sea or Alaska-Chukotka subpopulation that ranges between the northwest coast of Alaska and eastern Russia. The overarching goal of our research is to assess current and projected future responses of polar bears to a rapidly changing Arctic environment.
Return to Ecosystems >> Marine Ecosystems
Video: Polar Bear Collar Cam
Video: About the Polar Bear Research Program
Video: Melting Arctic Sea Ice Threatens Polar Bears
Polar Bear Reseach Projects
Information on the status and trends of polar bear populations are needed to inform management of polar bears under US laws and international agreements.
Population Dynamics
Health and Energetics
Distribution and Movements
Maternal Denning
Below are other science projects associated with this project.
Polar Bear Maternal Denning
Polar Bear Media/Contacts
Polar Bear Population Dynamics
Distribution and Movements of Polar Bears
Health and Energetics of Polar Bears
Q&A: Recent Research on Southern Beaufort Sea Polar Bears
Q&A: Polar Bears and Zoos
Below are data or web applications associated with this project.
Southern Beaufort Sea Polar Bear Fatty Acid Data, Spring Samples 2004-2016
Estimated Post-Emergence Period for Denning Polar Bears of the Chukchi and Beaufort Seas
Diet Composition of Southern Beaufort Sea Polar Bears Sampled in Spring from 2004 to 2016 Estimated with Quantitative Fatty Acid Signature Analysis
Metabolic Rate, Body Composition, and Blood Biochemistry Data from Polar Bears (Ursus maritimus) on Land, Western Hudson Bay, Canada, 2019-2022
Diet Estimates of Southern Beaufort Sea Polar Bears, 2004-2016
Mercury Concentrations, Diet, and Gut Microbiota Diversity of Southern Beaufort Sea Polar Bears, 2008-2019
Southern Beaufort Sea Polar Bear Blood Based Analyte Data, 1983-2018
Southern Beaufort Sea Polar Bear Diet and Gut Microbiota Data, 2015-2019
Polar Bear Continuous Time-Correlated Random Walk (CTCRW) Location Data Derived from Satellite Location Data, Chukchi and Beaufort Seas, July-November 1985-2017
Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture
Polar Bear Fall Coastal Survey Data from the Southern Beaufort Sea of Alaska, 2010-2013
Mapping data of Polar Bear (Ursus maritimus) maternal den habitat, Arctic Coastal Plain, Alaska
Below are multimedia associated with this project.
![POV Polar Bear Collar Cam B-roll 2019, 2021, and 2022 Two polar bears in water. Top center you see the underside chin of bear and below you see full face and neck of bear.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X32422_18Sep2022_1634.png?itok=OGh2gADS)
This is B-roll video of POV Polar Bear Collar Cam B-roll 2019, 2021, and 2022.
![USGS Alaska Science Center Polar Bear Research Program Large polar bear](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/large_polar_bear_4-1-2009_Mike_Lockhart.jpg?itok=CpJkn_SP)
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.
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.
An adult male polar bear with a GPS-enabled video camera collar on land in Wapusk National Park, Canada as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
An adult male polar bear with a GPS-enabled video camera collar on land in Wapusk National Park, Canada as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Three polar bears in water. left side is bears face close, center is bears face looking at you, right is part of bears' nose.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X32422_18Sep2022_1542.png?itok=lzSmpimI)
Point-of-view image of an adult male polar bear interacting with two other bears while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear interacting with two other bears while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Two polar bears in water. Top center you see the underside chin of bear and below you see full face and neck of bear.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X32422_18Sep2022_1634.png?itok=OGh2gADS)
Point-of-view image of an adult male polar bear interacting with another bear while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear interacting with another bear while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear walking along the coast in Wapusk National Park, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear walking along the coast in Wapusk National Park, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Faces of three polar bears. Left side is bear close up of face, center is underneath of chin, right is whole head and leg.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X33851_12Sep2022_1210.png?itok=D2nOOTg_)
Point-of-view image of an adult male polar bear interacting with two other bears while on land near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear interacting with two other bears while on land near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Graphical abstract showing role of diet and food intake affecting polar bear population dynamics in southern Beaufort Sea.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Rode%20polar%20bear%20graphic%20final.jpg?itok=PIE4m9fg)
This is a graphical abstract for a publication by the USGS and collaborators that examines the role of diet and food intake affecting polar bear population dynamics. Polar bears consume diets consisting of high proportions of marine mammal blubber that they access from the sea ice.
This is a graphical abstract for a publication by the USGS and collaborators that examines the role of diet and food intake affecting polar bear population dynamics. Polar bears consume diets consisting of high proportions of marine mammal blubber that they access from the sea ice.
Scientists continue to study how a warming Arctic will affect polar bear populations. The new 2022 Polar Bear Research Council Masterplan identifies how polar bears in zoos can help fill knowledge gaps that benefit wild populations.
Scientists continue to study how a warming Arctic will affect polar bear populations. The new 2022 Polar Bear Research Council Masterplan identifies how polar bears in zoos can help fill knowledge gaps that benefit wild populations.
This video showcases the latest polar bear point-of-view footage to date along with an interview of the research scientist who is responsible for the project. Released in conjunction with a new scientific study led by the USGS.
This video showcases the latest polar bear point-of-view footage to date along with an interview of the research scientist who is responsible for the project. Released in conjunction with a new scientific study led by the USGS.
Exciting polar bear cam b-roll footage from the bear’s perspective from 2014, 2015, and 2016. The USGS Alaska Science Center Polar Bear Research Project conducts long-term research on polar bears to inform, local, state, national and international policy makers regarding conservation and management of the species and its habitat.
Exciting polar bear cam b-roll footage from the bear’s perspective from 2014, 2015, and 2016. The USGS Alaska Science Center Polar Bear Research Project conducts long-term research on polar bears to inform, local, state, national and international policy makers regarding conservation and management of the species and its habitat.
Adult polar bear walking across a recently overwashed barrier island during a large Arctic storm in September 2016. The barrier island is offshore of Barter Island on Alaska’s north coast.
Adult polar bear walking across a recently overwashed barrier island during a large Arctic storm in September 2016. The barrier island is offshore of Barter Island on Alaska’s north coast.
This short clip is representative of a large amount of video footage of an adult female polar bear, equipped with a point of view camera, that is used by scientists to study polar bear behavior and feeding rates.
This short clip is representative of a large amount of video footage of an adult female polar bear, equipped with a point of view camera, that is used by scientists to study polar bear behavior and feeding rates.
![Scientist checking vitals on polar bear on the Chukchi Sea](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/KRode_CheckingVitalsOnPBearChukchiSea2016.jpg?itok=vb0SwyYN)
Karyn Rode taking vitals on a polar bear in the Chukchi Sea April 2016. On sea ice off the northwest coast of Alaska in the Chukchi Sea.
Karyn Rode taking vitals on a polar bear in the Chukchi Sea April 2016. On sea ice off the northwest coast of Alaska in the Chukchi Sea.
Photo of adult male polar bear walking towards seal (upper right) Chukchi Sea, Alaska
Photo of adult male polar bear walking towards seal (upper right) Chukchi Sea, Alaska
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
An adult female polar bear and her two cubs travel across the sea ice of the Arctic Ocean north of the Alaska coast.
An adult female polar bear and her two cubs travel across the sea ice of the Arctic Ocean north of the Alaska coast.
An adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
An adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Below are publications associated with this project.
Potential impacts of an autumn oil spill on polar bears summering on land in northern Alaska
The post-emergence period for denning polar bears: Phenology and influence on cub survival
Ursids evolved dietary diversity without major alterations in metabolic rates
Polar bear energetic and behavioral strategies on land with implications for surviving the ice-free period
Declining Arctic sea ice is increasing polar bear land use. Polar bears on land are thought to minimize activity to conserve energy. Here, we measure the daily energy expenditure (DEE), diet, behavior, movement, and body composition changes of 20 different polar bears on land over 19–23 days from August to September (2019–2022) in Manitoba, Canada. Polar bears on land exhibited a 5.2-fold range in
Long-term storage at -20°C compromises fatty acid composition of polar bear adipose biopsies
Identifying indicators of polar bear population status
Sea-ice conditions predict polar bear land use around military installations in Alaska
Incremental evolution of modeling a prognosis for polar bears in a rapidly changing Arctic
Forecasts of polar bear (Ursus maritimus) land use in the southern Beaufort and Chukchi Seas, 2040–65
A body composition model with multiple storage compartments for polar bears (Ursus maritimus)
High winds and melting sea ice trigger landward movement in a polar bear population of concern
Fecal DNA metabarcoding shows credible short-term prey detections and explains variation in the gut microbiome of two polar bear subpopulations
Below are news stories associated with this project.
Below are partners associated with this project.
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, distribution and movements, maternal denning, and methods development. The majority of our research focuses on the two polar bear subpopulation’s whose range includes Alaska: the Southern Beaufort Sea subpopulation that ranges between the North Slope of Alaska and western Canada and the Chukchi Sea or Alaska-Chukotka subpopulation that ranges between the northwest coast of Alaska and eastern Russia. The overarching goal of our research is to assess current and projected future responses of polar bears to a rapidly changing Arctic environment.
Return to Ecosystems >> Marine Ecosystems
Video: Polar Bear Collar Cam
Video: About the Polar Bear Research Program
Video: Melting Arctic Sea Ice Threatens Polar Bears
Polar Bear Reseach Projects
Information on the status and trends of polar bear populations are needed to inform management of polar bears under US laws and international agreements.
Population Dynamics
Health and Energetics
Distribution and Movements
Maternal Denning
Below are other science projects associated with this project.
Polar Bear Maternal Denning
Polar Bear Media/Contacts
Polar Bear Population Dynamics
Distribution and Movements of Polar Bears
Health and Energetics of Polar Bears
Q&A: Recent Research on Southern Beaufort Sea Polar Bears
Q&A: Polar Bears and Zoos
Below are data or web applications associated with this project.
Southern Beaufort Sea Polar Bear Fatty Acid Data, Spring Samples 2004-2016
Estimated Post-Emergence Period for Denning Polar Bears of the Chukchi and Beaufort Seas
Diet Composition of Southern Beaufort Sea Polar Bears Sampled in Spring from 2004 to 2016 Estimated with Quantitative Fatty Acid Signature Analysis
Metabolic Rate, Body Composition, and Blood Biochemistry Data from Polar Bears (Ursus maritimus) on Land, Western Hudson Bay, Canada, 2019-2022
Diet Estimates of Southern Beaufort Sea Polar Bears, 2004-2016
Mercury Concentrations, Diet, and Gut Microbiota Diversity of Southern Beaufort Sea Polar Bears, 2008-2019
Southern Beaufort Sea Polar Bear Blood Based Analyte Data, 1983-2018
Southern Beaufort Sea Polar Bear Diet and Gut Microbiota Data, 2015-2019
Polar Bear Continuous Time-Correlated Random Walk (CTCRW) Location Data Derived from Satellite Location Data, Chukchi and Beaufort Seas, July-November 1985-2017
Data Used to Assess the Acute Physiological Response of Polar Bears to Helicopter Capture
Polar Bear Fall Coastal Survey Data from the Southern Beaufort Sea of Alaska, 2010-2013
Mapping data of Polar Bear (Ursus maritimus) maternal den habitat, Arctic Coastal Plain, Alaska
Below are multimedia associated with this project.
![POV Polar Bear Collar Cam B-roll 2019, 2021, and 2022 Two polar bears in water. Top center you see the underside chin of bear and below you see full face and neck of bear.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X32422_18Sep2022_1634.png?itok=OGh2gADS)
This is B-roll video of POV Polar Bear Collar Cam B-roll 2019, 2021, and 2022.
This is B-roll video of POV Polar Bear Collar Cam B-roll 2019, 2021, and 2022.
![USGS Alaska Science Center Polar Bear Research Program Large polar bear](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/large_polar_bear_4-1-2009_Mike_Lockhart.jpg?itok=CpJkn_SP)
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.
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.
An adult male polar bear with a GPS-enabled video camera collar on land in Wapusk National Park, Canada as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
An adult male polar bear with a GPS-enabled video camera collar on land in Wapusk National Park, Canada as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Three polar bears in water. left side is bears face close, center is bears face looking at you, right is part of bears' nose.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X32422_18Sep2022_1542.png?itok=lzSmpimI)
Point-of-view image of an adult male polar bear interacting with two other bears while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear interacting with two other bears while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Two polar bears in water. Top center you see the underside chin of bear and below you see full face and neck of bear.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X32422_18Sep2022_1634.png?itok=OGh2gADS)
Point-of-view image of an adult male polar bear interacting with another bear while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear interacting with another bear while in the ocean near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear walking along the coast in Wapusk National Park, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear walking along the coast in Wapusk National Park, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Faces of three polar bears. Left side is bear close up of face, center is underneath of chin, right is whole head and leg.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/X33851_12Sep2022_1210.png?itok=D2nOOTg_)
Point-of-view image of an adult male polar bear interacting with two other bears while on land near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
Point-of-view image of an adult male polar bear interacting with two other bears while on land near Churchill, Manitoba, Canada. The image was recorded from a GPS-enabled video camera collar as part of a study measuring the energy expenditure, behavior, movement, and body composition changes of polar bears on land.
![Graphical abstract showing role of diet and food intake affecting polar bear population dynamics in southern Beaufort Sea.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Rode%20polar%20bear%20graphic%20final.jpg?itok=PIE4m9fg)
This is a graphical abstract for a publication by the USGS and collaborators that examines the role of diet and food intake affecting polar bear population dynamics. Polar bears consume diets consisting of high proportions of marine mammal blubber that they access from the sea ice.
This is a graphical abstract for a publication by the USGS and collaborators that examines the role of diet and food intake affecting polar bear population dynamics. Polar bears consume diets consisting of high proportions of marine mammal blubber that they access from the sea ice.
Scientists continue to study how a warming Arctic will affect polar bear populations. The new 2022 Polar Bear Research Council Masterplan identifies how polar bears in zoos can help fill knowledge gaps that benefit wild populations.
Scientists continue to study how a warming Arctic will affect polar bear populations. The new 2022 Polar Bear Research Council Masterplan identifies how polar bears in zoos can help fill knowledge gaps that benefit wild populations.
This video showcases the latest polar bear point-of-view footage to date along with an interview of the research scientist who is responsible for the project. Released in conjunction with a new scientific study led by the USGS.
This video showcases the latest polar bear point-of-view footage to date along with an interview of the research scientist who is responsible for the project. Released in conjunction with a new scientific study led by the USGS.
Exciting polar bear cam b-roll footage from the bear’s perspective from 2014, 2015, and 2016. The USGS Alaska Science Center Polar Bear Research Project conducts long-term research on polar bears to inform, local, state, national and international policy makers regarding conservation and management of the species and its habitat.
Exciting polar bear cam b-roll footage from the bear’s perspective from 2014, 2015, and 2016. The USGS Alaska Science Center Polar Bear Research Project conducts long-term research on polar bears to inform, local, state, national and international policy makers regarding conservation and management of the species and its habitat.
Adult polar bear walking across a recently overwashed barrier island during a large Arctic storm in September 2016. The barrier island is offshore of Barter Island on Alaska’s north coast.
Adult polar bear walking across a recently overwashed barrier island during a large Arctic storm in September 2016. The barrier island is offshore of Barter Island on Alaska’s north coast.
This short clip is representative of a large amount of video footage of an adult female polar bear, equipped with a point of view camera, that is used by scientists to study polar bear behavior and feeding rates.
This short clip is representative of a large amount of video footage of an adult female polar bear, equipped with a point of view camera, that is used by scientists to study polar bear behavior and feeding rates.
![Scientist checking vitals on polar bear on the Chukchi Sea](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/KRode_CheckingVitalsOnPBearChukchiSea2016.jpg?itok=vb0SwyYN)
Karyn Rode taking vitals on a polar bear in the Chukchi Sea April 2016. On sea ice off the northwest coast of Alaska in the Chukchi Sea.
Karyn Rode taking vitals on a polar bear in the Chukchi Sea April 2016. On sea ice off the northwest coast of Alaska in the Chukchi Sea.
Photo of adult male polar bear walking towards seal (upper right) Chukchi Sea, Alaska
Photo of adult male polar bear walking towards seal (upper right) Chukchi Sea, Alaska
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
Data collected from long distance swims by Polar bears suggest that they do not stop to rest during their journey.
An adult female polar bear and her two cubs travel across the sea ice of the Arctic Ocean north of the Alaska coast.
An adult female polar bear and her two cubs travel across the sea ice of the Arctic Ocean north of the Alaska coast.
An adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
An adult female polar bear on the sea ice wearing a GPS satellite video-camera collar. GPS video-camera collars were applied to solitary adult female polar bears for 8 - 12 days in April, 2014-2016. These collars enabled researchers to understand the movements, behaviors, and foraging success of polar bears on the sea ice.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Tatqiq, an adult female polar bear at the San Diego Zoo, wearing an accelerometer collar being used to develop a method to remotely identify wild polar bear behaviors.
Below are publications associated with this project.
Potential impacts of an autumn oil spill on polar bears summering on land in northern Alaska
The post-emergence period for denning polar bears: Phenology and influence on cub survival
Ursids evolved dietary diversity without major alterations in metabolic rates
Polar bear energetic and behavioral strategies on land with implications for surviving the ice-free period
Declining Arctic sea ice is increasing polar bear land use. Polar bears on land are thought to minimize activity to conserve energy. Here, we measure the daily energy expenditure (DEE), diet, behavior, movement, and body composition changes of 20 different polar bears on land over 19–23 days from August to September (2019–2022) in Manitoba, Canada. Polar bears on land exhibited a 5.2-fold range in
Long-term storage at -20°C compromises fatty acid composition of polar bear adipose biopsies
Identifying indicators of polar bear population status
Sea-ice conditions predict polar bear land use around military installations in Alaska
Incremental evolution of modeling a prognosis for polar bears in a rapidly changing Arctic
Forecasts of polar bear (Ursus maritimus) land use in the southern Beaufort and Chukchi Seas, 2040–65
A body composition model with multiple storage compartments for polar bears (Ursus maritimus)
High winds and melting sea ice trigger landward movement in a polar bear population of concern
Fecal DNA metabarcoding shows credible short-term prey detections and explains variation in the gut microbiome of two polar bear subpopulations
Below are news stories associated with this project.
Below are partners associated with this project.