ArticleGlobal change biology2026
Habitat Selection and Intrapopulation Spatial Segregation in an Arctic Top Predator at the Southern Limit of Its Range.
Article in Global change biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Accounting for spatial structure within populations is critical for defining appropriate scales of management, particularly in the Arctic, where habitats of ice-dependent species such as the polar bear (Ursus maritimus) are being transformed at an accelerated rate. We examined broad-scale patterns of space use and finer-scale habitat selection by adult female polar bears in James Bay, located at the southernmost extent of the species' global range. Using satellite telemetry data collected during the annual on-ice period from 2012 to 2017, we estimated individual- and population-level utilization distributions (UDs) and applied hierarchical clustering to assess whether individuals formed distinct spatial groups based on the degree of UD overlap. We also fit step-selection functions (SSFs) to evaluate selection for sea-ice concentration, ocean depth, and distance to coast. Fifteen bears with data spanning at least one complete on-ice period had individual 95% UDs averaging 74,770 km
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