Karyn Rode, Ph.D.
As a Research Wildlife Biologist, I conduct studies of the population dynamics and habitat use of large mammals to support population management and positive wildlife-human interactions.
I work with international and bilateral groups, such as the Polar Bear Range States and US-Russia Polar Bear Commission, DOI partners, including U.S. Fish and Wildlife Service, the Bureau of Land Management, and the U.S. National Park Service, Alaska Native co-management groups, and local and state governments to identify and address research needs for large mammals. My research focuses primarily on identifying biological and ecological indicators for monitoring large mammal populations – information that is needed to support harvest and population management. I also study wildlife interactions with humans in areas of industry, via tourism and recreation, and in local communities to help minimize or avoid negative effects on wildlife and ensure human safety. I work to develop new, less expensive and less invasive methods needed to address information needs. I regularly conduct studies with animals in zoos which is a low-cost approach for developing new research techniques that can be applied to wild populations.
Professional Experience
Mar 2012 - Present Research Wildlife Biologist, USGS Alaska Science Center
Oct 2006 - Feb 2012 Wildlife Biologist, US Fish and Wildlife Service Polar Bear Program, Anchorage, Alaska
Jan 2006 - Oct 2006 Research Associate, Cornell University, Forest Elephant program
June 2002 - Dec 2005 Contract wildlife biologist - Alaska Department of Fish and Game/PhD candidate - Washington State University
Education and Certifications
Ph.D. 2005 Washington State University Zoology
M.S. 1999 Washington State University Zoology
B.S. 1996 Colorado State University Wildlife Biology
Affiliations and Memberships*
The Wildlife Society
International Association of Bear Research and Management
American Zoological Association’s Polar Bear Research Council
Science and Products
Denning Phenology, Den Substrate, and Reproductive Success of Female Polar Bears (Ursus maritimus) in the Southern Beaufort Sea 1986-2013 and the Chukchi Sea 1987-1994 Denning Phenology, Den Substrate, and Reproductive Success of Female Polar Bears (Ursus maritimus) in the Southern Beaufort Sea 1986-2013 and the Chukchi Sea 1987-1994
Carbon and Nitrogen Isotope Concentrations in Polar Bear Hair and Prey from the Alaska Beaufort and Chukchi Seas, 1978-2019 Carbon and Nitrogen Isotope Concentrations in Polar Bear Hair and Prey from the Alaska Beaufort and Chukchi Seas, 1978-2019
Fatty Acid Composition of Polar Bear Adipose Tissue and Ringed and Bearded Seal Blubber Collected in the Chukchi Sea, 2008-2017 Fatty Acid Composition of Polar Bear Adipose Tissue and Ringed and Bearded Seal Blubber Collected in the Chukchi Sea, 2008-2017
Serum Urea and Creatinine Levels of Spring-Caught Polar Bears (Ursus maritimus) in the Southern Beaufort and Chukchi Seas Serum Urea and Creatinine Levels of Spring-Caught Polar Bears (Ursus maritimus) in the Southern Beaufort and Chukchi Seas
Measurement Data of Polar Bears Captured in the Chukchi and Southern Beaufort Sea, 1981-2017 Measurement Data of Polar Bears Captured in the Chukchi and Southern Beaufort Sea, 1981-2017
Accelerometer Data from Collared Female Polar Bears in the Beaufort Sea, 2009-2016 Accelerometer Data from Collared Female Polar Bears in the Beaufort Sea, 2009-2016
Data from a Circumpolar Survey on Recreational Activities in Polar Bear Habitat, 2017-2018 Data from a Circumpolar Survey on Recreational Activities in Polar Bear Habitat, 2017-2018
Denning Behavior Classifications Using Temperature Sensor Data on Collars Deployed on Polar Bears in the Southern Beaufort Sea, 1986-2013 Denning Behavior Classifications Using Temperature Sensor Data on Collars Deployed on Polar Bears in the Southern Beaufort Sea, 1986-2013
Fatty Acid Signature Data of Chukchi Sea Polar Bears, 2008-2015 Fatty Acid Signature Data of Chukchi Sea Polar Bears, 2008-2015
Summer Activity Sensor Data from Collars Deployed on Female Polar Bears in the Chukchi Sea 1989 to 1995 and Southern Beaufort Sea 1989 to 2014 Summer Activity Sensor Data from Collars Deployed on Female Polar Bears in the Chukchi Sea 1989 to 1995 and Southern Beaufort Sea 1989 to 2014
Stable Isotope Data from Diets and Tissues of Captive Bears Fed Experimental Diets Stable Isotope Data from Diets and Tissues of Captive Bears Fed Experimental Diets
Recreation Survey Results in Brown Bear Habitats, 2013 Recreation Survey Results in Brown Bear Habitats, 2013
Diet energy density estimated from isotopes in predator hair associated with survival, habitat, and population dynamics Diet energy density estimated from isotopes in predator hair associated with survival, habitat, and population dynamics
Intrapopulation differences in polar bear movement and step selection patterns Intrapopulation differences in polar bear movement and step selection patterns
The role of satellite telemetry data in 21st century conservation of polar bears (Ursus maritimus) The role of satellite telemetry data in 21st century conservation of polar bears (Ursus maritimus)
Summer/fall diet and macronutrient assimilation in an Arctic predator Summer/fall diet and macronutrient assimilation in an Arctic predator
Subsurface swimming and stationary diving are metabolically cheap in adult Pacific walruses (Odobenus rosmarus divergens) Subsurface swimming and stationary diving are metabolically cheap in adult Pacific walruses (Odobenus rosmarus divergens)
New insights into dietary management of polar bears (Ursus maritimus) and brown bears (U. arctos) New insights into dietary management of polar bears (Ursus maritimus) and brown bears (U. arctos)
Long-term variation in polar bear body condition and maternal investment relative to a changing environment Long-term variation in polar bear body condition and maternal investment relative to a changing environment
Fatty acid profiles of feeding and fasting bears: Estimating calibration coefficients, the timeframe of diet estimates, and selective mobilization during hibernation Fatty acid profiles of feeding and fasting bears: Estimating calibration coefficients, the timeframe of diet estimates, and selective mobilization during hibernation
Iñupiaq knowledge of polar bears (Ursus maritimus) in the southern Beaufort Sea, Alaska Iñupiaq knowledge of polar bears (Ursus maritimus) in the southern Beaufort Sea, Alaska
Demographic risk assessment for a harvested species threatened by climate change: Polar bears in the Chukchi Sea Demographic risk assessment for a harvested species threatened by climate change: Polar bears in the Chukchi Sea
Energetic and health effects of protein overconsumption constrain dietary adaptation in an apex predator Energetic and health effects of protein overconsumption constrain dietary adaptation in an apex predator
Seal body condition and atmospheric circulation patterns influence polar bear body condition, recruitment, and feeding ecology in the Chukchi Sea Seal body condition and atmospheric circulation patterns influence polar bear body condition, recruitment, and feeding ecology in the Chukchi Sea
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Denning Phenology, Den Substrate, and Reproductive Success of Female Polar Bears (Ursus maritimus) in the Southern Beaufort Sea 1986-2013 and the Chukchi Sea 1987-1994 Denning Phenology, Den Substrate, and Reproductive Success of Female Polar Bears (Ursus maritimus) in the Southern Beaufort Sea 1986-2013 and the Chukchi Sea 1987-1994
Carbon and Nitrogen Isotope Concentrations in Polar Bear Hair and Prey from the Alaska Beaufort and Chukchi Seas, 1978-2019 Carbon and Nitrogen Isotope Concentrations in Polar Bear Hair and Prey from the Alaska Beaufort and Chukchi Seas, 1978-2019
Fatty Acid Composition of Polar Bear Adipose Tissue and Ringed and Bearded Seal Blubber Collected in the Chukchi Sea, 2008-2017 Fatty Acid Composition of Polar Bear Adipose Tissue and Ringed and Bearded Seal Blubber Collected in the Chukchi Sea, 2008-2017
Serum Urea and Creatinine Levels of Spring-Caught Polar Bears (Ursus maritimus) in the Southern Beaufort and Chukchi Seas Serum Urea and Creatinine Levels of Spring-Caught Polar Bears (Ursus maritimus) in the Southern Beaufort and Chukchi Seas
Measurement Data of Polar Bears Captured in the Chukchi and Southern Beaufort Sea, 1981-2017 Measurement Data of Polar Bears Captured in the Chukchi and Southern Beaufort Sea, 1981-2017
Accelerometer Data from Collared Female Polar Bears in the Beaufort Sea, 2009-2016 Accelerometer Data from Collared Female Polar Bears in the Beaufort Sea, 2009-2016
Data from a Circumpolar Survey on Recreational Activities in Polar Bear Habitat, 2017-2018 Data from a Circumpolar Survey on Recreational Activities in Polar Bear Habitat, 2017-2018
Denning Behavior Classifications Using Temperature Sensor Data on Collars Deployed on Polar Bears in the Southern Beaufort Sea, 1986-2013 Denning Behavior Classifications Using Temperature Sensor Data on Collars Deployed on Polar Bears in the Southern Beaufort Sea, 1986-2013
Fatty Acid Signature Data of Chukchi Sea Polar Bears, 2008-2015 Fatty Acid Signature Data of Chukchi Sea Polar Bears, 2008-2015
Summer Activity Sensor Data from Collars Deployed on Female Polar Bears in the Chukchi Sea 1989 to 1995 and Southern Beaufort Sea 1989 to 2014 Summer Activity Sensor Data from Collars Deployed on Female Polar Bears in the Chukchi Sea 1989 to 1995 and Southern Beaufort Sea 1989 to 2014
Stable Isotope Data from Diets and Tissues of Captive Bears Fed Experimental Diets Stable Isotope Data from Diets and Tissues of Captive Bears Fed Experimental Diets
Recreation Survey Results in Brown Bear Habitats, 2013 Recreation Survey Results in Brown Bear Habitats, 2013
Diet energy density estimated from isotopes in predator hair associated with survival, habitat, and population dynamics Diet energy density estimated from isotopes in predator hair associated with survival, habitat, and population dynamics
Intrapopulation differences in polar bear movement and step selection patterns Intrapopulation differences in polar bear movement and step selection patterns
The role of satellite telemetry data in 21st century conservation of polar bears (Ursus maritimus) The role of satellite telemetry data in 21st century conservation of polar bears (Ursus maritimus)
Summer/fall diet and macronutrient assimilation in an Arctic predator Summer/fall diet and macronutrient assimilation in an Arctic predator
Subsurface swimming and stationary diving are metabolically cheap in adult Pacific walruses (Odobenus rosmarus divergens) Subsurface swimming and stationary diving are metabolically cheap in adult Pacific walruses (Odobenus rosmarus divergens)
New insights into dietary management of polar bears (Ursus maritimus) and brown bears (U. arctos) New insights into dietary management of polar bears (Ursus maritimus) and brown bears (U. arctos)
Long-term variation in polar bear body condition and maternal investment relative to a changing environment Long-term variation in polar bear body condition and maternal investment relative to a changing environment
Fatty acid profiles of feeding and fasting bears: Estimating calibration coefficients, the timeframe of diet estimates, and selective mobilization during hibernation Fatty acid profiles of feeding and fasting bears: Estimating calibration coefficients, the timeframe of diet estimates, and selective mobilization during hibernation
Iñupiaq knowledge of polar bears (Ursus maritimus) in the southern Beaufort Sea, Alaska Iñupiaq knowledge of polar bears (Ursus maritimus) in the southern Beaufort Sea, Alaska
Demographic risk assessment for a harvested species threatened by climate change: Polar bears in the Chukchi Sea Demographic risk assessment for a harvested species threatened by climate change: Polar bears in the Chukchi Sea
Energetic and health effects of protein overconsumption constrain dietary adaptation in an apex predator Energetic and health effects of protein overconsumption constrain dietary adaptation in an apex predator
Seal body condition and atmospheric circulation patterns influence polar bear body condition, recruitment, and feeding ecology in the Chukchi Sea Seal body condition and atmospheric circulation patterns influence polar bear body condition, recruitment, and feeding ecology in the Chukchi Sea
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government