- Larger Work: This publication is Chapter 8 of Arctic Refuge coastal plain terrestrial wildlife research summaries
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Polar bears (Ursus maritimus) are hunted throughout most of their range. In addition to hunting polar bears of the Beaufort Sea region are exposed to mineral and petroleum extraction and related human activities such as shipping road-building, and seismic testing (Stirling 1990).
Little was known at the start of this project about how polar bears move about in their environment, and although it was understood that many bears travel across political borders, the boundaries of populations had not been delineated (Amstrup 1986, Amstrup et al. 1986, Amstrup and DeMaster 1988, Garner et al. 1994, Amstrup 1995, Amstrup et al. 1995, Amstrup 2000).
As human populations increase and demands for polar bears and other arctic resources escalate, managers must know the sizes and distributions of the polar bear populations. Resource managers also need reliable estimates of breeding rates, reproductive intervals, litter sizes, and survival of young and adults.
Our objectives for this research were 1) to determine the seasonal and annual movements of polar bears in the Beaufort Sea, 2) to define the boundaries of the population(s) using this region, 3) to determine the size and status of the Beaufort Sea polar bear population, and 4) to establish reproduction and survival rates (Amstrup 2000).
Additional publication details
|Publication Subtype||Federal Government Series|
|Series title||Biological Science Report|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Alaska Science Center|
|Larger Work Type||Report|
|Larger Work Subtype||Federal Government Series|
|Larger Work Title||Arctic Refuge coastal plain terrestrial wildlife research summaries (Biological Science Report USGS/BRD/BSR-2002-0001)|
|Country||Canada, United States|
|State||Alaska, Northwest Territories, Yukon Territory|
|Other Geospatial||Arctic Refuge Coastal Plain, Arctic National Wildlife Refuge|
|Google Analytic Metrics||Metrics page|