Polar Bear Population Status in the Southern Beaufort Sea

By E. Regehr, Steven C. Amstrup, Ian Stirling. 2006

97 citations recorded by the source corpus.

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Citations in the corpus

Impacts of changing sea-ice conditions on Arctic marine mammals (2011, background): “Most recently, polar bears in the Beaufort Sea have exhibited reduced breeding rates, lower cub litter survival, reduced body size and reduced adult survivorship, which are correlated with an increasing duration of the ice-free period (Regehr et al. 2006, 2007, 2010; Rode et al. 2010).”
Consequences of long-distance swimming and travel over deep-water pack ice for a female polar bear during a year of extreme sea ice retreat (2011, background): “Between 18 September and 26 October eastern Beaufort Sea ice movement was 0.4 km h-1 at 188 from true north (buoy C, Fig.”
Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis (2007, unknown): “Although the southern Beaufort Sea population of polar bears has been estimated to be between 1500 and 2500 individuals (Amstrup et al. 1986, 2001; Stirling 2002; Regehr et al. 2006), these include polar bears captured along both the Canadian and the Alaskan portions of the Beaufort Sea.”
Landward and eastward shift of Alaskan polar bear denning associated with recent sea ice changes (2007, background): “The physical stature of adult male polar bears and cubs has recently declined in the southern Beaufort Sea region, as has the survival of cubs (Regehr et al. 2006).”
Effects of sea ice extent and food availability on spatial and temporal distribution of polar bears during the fall open-water period in the Southern Beaufort Sea (2008, background): “…both highly dependent on sea ice (Stirling and Derocher 1993; Amstrup 2003; Simpkins et al. 2003), raising concerns that both species may exhibit population-level responses to changing sea ice conditions (Derocher et al. 2004; Regehr et al. 2006; Stirling and Parkinson 2006; Schliebe et al. 2006).”