Table 1. Model structure to explain variation in age at first successful reproduction (AFSR), size of the first successful brood (SFSB) and proportion of successful breeders by cohort (PSBC).
Model structure to examine whether variation in age at first successful reproduction (AFSR), size of the first successful brood (SFSB) and proportion of successful breeders by cohort (PSBC) was due to hatch year (HY) effects, conditions prior to successful reproduction (breeding conditions index; BCI) or those experienced in the year of successful reproduction (BY).
| Response | Fixed effects (continuous covariates) | Random effects |
|---|---|---|
| AFSR | HY May NAO | Year at first successful reproduction |
| BCI | ||
| BY December NAO | ||
| BY May NAO | ||
| SFSB | HY May NAO | Year at first successful reproduction |
| BCI | ||
| BY December NAO | ||
| BY May NAO | ||
| PSBC | CBCI | Cohort |
| BY December NAO | Year | |
| BY May NAO | ||
| Cohort n |