Fig. 1
From: Breeders that receive help age more slowly in a cooperatively breeding bird
Age-dependent survival of dominants in relation to helper presence. a Dominant females, b dominant males. Solid lines are model predicted slopes ± SE for dominants that were assisted by helpers during the main breeding season and dashed lines are for dominants without helpers. Data shown are means (circles) and 95% binomial confidence intervals (error bars) for 3-year age intervals (e.g. 1–3 year) based on raw data. In the analyses, age was a continuous variable. Numbers are sample sizes. Source data are provided as a Source Data file
