Fig. 4From: State-dependent capital and income breeding: a novel approach to evaluating individual strategies with stable isotopesThe annual timing of breeding. The annual timing of breeding (median lay date, N = 16) of eider females is significantly positively associated with the annual median number of days spent at the breeding grounds prior to egg laying (line represents linear regression: b = 0.45, F 1, 14 = 10.24, p = 0.006, R 2 = 0.42)Back to article page