Figure 3: Predicted changes in litter size as a function of on-shore arrival date.
From: Predicting climate change impacts on polar bear litter size
(a, b) Expected proportions of pregnant female polar bears in western Hudson Bay to produce zero (p0, dot-dashed line), one (p1, dashed line), two (p2, solid line) and three (p3, dotted line) cubs as a function of on-shore arrival date under the Early and Late Feeding scenarios, respectively. (c, d) Expected mean litter size (X, dashed line) and expected mean litter size conditional on producing at least one cub (X*, solid line) as a function of on-shore arrival date under Early and Late Feeding, respectively. Dotted lines show 95% confidence intervals. The vertical dotted lines in b and d mark 7 June, the on-shore arrival date before which reproduction becomes impossible with Late Feeding.
