Fig. 1: Despite mortality increasing exponentially, multi-season nesters (MSN) show no decline in cumulative reproductive output.

A Solid line represents the average change in cumulative reproductive output (number of eggs) with age and associated 95% CI (dashed line). Horizontal dashed line indicates the equilibrium value, \({{\rm{\kappa }}}\). B Solid line shows age-specific changes in mortality and associated 95% CI (shaded area). Vertical dashed line represents the minimum age at first reproduction (AFR).