The effects of life history variables on % total incubation and % female share.

Analysis for the full day (0–24 h), daytime (6–18 h) and night (18–6 h) data are shown separately.Notes.The full models included time period, clutch age, egg laying date as fixed terms and population random intercept term. The significance of each predictor was assessed by eliminating it from the full model and comparing the fit of the two models using likelihood ratio test.