Telomere Length at Recruitment Predicts Lifespan and Lifetime Reproductive Success in the Barn Swallow (Hirundo rustica).

Despite a positive trend emerging, RTL at recruitment did not significantly predict average seasonal reproductive output (RTL at recruitment: β ± SE = 1.94 ± 1.38, t 75.93 = 1.40, p = 0.16; Sex (female): β ± SE = −0.99 ± 0.55, t 74.97 = −1.79, p = 0.07), suggesting that its association with LRS is mainly driven by lifespan. 3.3 Telomere Length and Expression of Plumage Ornaments The interaction between sex and tail length showed a statistically significant effect on RTL (Table 3 , Figure 4 ), indicating that the relationship between tail length and RTL differed between males and females.

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