Number of Occurrences
Note: For many non-migratory species, occurrences are roughly equivalent to populations.
Estimated Number of Occurrences: 6 - 20
Comments: Based on movement patterns and spatial segregation with limited interchange, the IUCN/SSC Polar Bear Specialist Group and USFWS (2008) recognized 19 relatively discrete (but variously overlapping) populations or management units (Stirling 1991, Amstrup 2003), which correspond with major occupied ecogeographic units.
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