Fig. 2
From: Intrapopulation differences in polar bear movement and step selection patterns
Average effects of sea ice concentration (A), distance to land (B), and distance to sea ice edge (C) on the relative probability of use for each of three classes (i.e., adult female [AF], adult male [AM], and sub-adult [SA]) of polar bears in the Chukchi Sea subpopulation in spring and early summer (i.e., 1 March–30 June). Plots are based on the habitat conditions present in the sample of available points used for the step selection analysis. We developed curves (and associated 95% Confidence Intervals of the smoothed curve; gray polygons) based on a smoothed (i.e., generalized additive model, with df = 3 for the sea ice concentration and distance to land variables, and df = 4 for the distance to ice edge variable) non-parametric model, as described in Avgar et al. [53]