Fig. 6: Cox proportional hazards regression models showing predicted values of hazard ratios (i.e. mortality risk) with 95% confidence intervals as a function of a) tarsus length, and b) telomere length for each sex. Differences between sexes were not significant. Larger individuals had lower long-term mortality, and model selection indicated a tendency for both short and long telomeres to be associated with lower mortality.
Table 5: Estimates with 95% confidence intervals (CI) and standard errors (SE) from the highest ranked generalized linear models (see Table S2.5) fitted using a Poisson distribution of variation in lifetime reproductive success (LRS) corrected for lifespan for each population (high /low ). Random intercepts for brood identity and year were included as random factors in all models. Only individuals that were not removed during the artificial selection and that survived until breeding were included in these analyses.