Fig 3. Polar bear (Ursus maritimus) data.

a) QFASA estimates of marine mammal prey (Bearded seal (Erignathus barbatus), beluga whale (Delphinapterus leucas), harbour seal (Phoca vitulina), harp seal (Pagophilus groenlandicus), ringed seal (Pusa hispida) and walrus (Odobenus rosmarus)) consumed by individual polar bears (stacked coloured bars) and overlaid with H-Prints (black circles) of individual bears. Individual polar bears are grouped according to the geographical location of collection and the corresponding subpopulation designation: Baffin Bay, western Hudson Bay and southern Hudson Bay (see Fig 2). For each subpopulation, mean QFASA estimates of marine mammal prey and mean (black circles) and median (grey diamonds) H-Prints are summarised in the single plot adjacent to each subpopulation plot (for H-Print-derived estimates of sympagic carbon, refer to Table 1). b) δ¹⁵N of individual bears (grey squares). For each subpopulation, mean δ¹⁵N are summarised in the single plot (box and whiskers) adjacent to each subpopulation plot.