Figure 2. a) Correlations of adult telomere length (TL) and 3 life-history traits of 30 bird species: lifespan, mass-predicted lifespan, and mass-independent lifespan. b) Correlations of telomere length rate of change (TROC) and the 3 lifecycle aspects. “Lifespan” shows unadjusted correlations, “Mass-Pred Lifespan” shows lifespan values predicted from the regression of lifespan on body size, and “Mass-Ind Lifespan” shows the residuals of the regression of lifespan on body size. Pearson correlations are shown with horizontal center bars and 95% confidence intervals with high and low horizontal bars. Triangles show the phylogeny-adjusted correlation values (none are significantly different from zero at the P < 0.05 level). The horizontal black dashed lines show zero correlation.