A) Sample sizes
Table S1. Sample sizes and time periods for each of the studied
populations. For the time period of individual life histories, the first
year refers to the earliest cohort year included in the analyses and we
included only individuals that were known to be dead after the last year
(i.e. where not recorded in the next two breeding seasons). For age and
density dependent analyses, the time period refers to all individuals
present during those years.