Figure 3.
(a) Breeders that reduced their investment in feeding offspring to a higher degree experienced larger increases in survival (Nspecies = 16). (b) Breeders that received large amounts of help reduced their investment in feeding offspring more than breeders that received less help (Nspecies = 10). Each point is an effect size from a different species and is bracketed by its 95% confidence interval, with female (green circles) and male (blue squares) breeders shown separately. Regression lines and 95% CIs are plotted. Data are given in electronic supplementary material, table S3.