Indirect genetic effects in a sex-limited trait: the case of breeding time in red-billed gulls.

Abstract excerpt

Female reproductive performance can be strongly affected by male care, so that breeding time, a trait expressed only by females, can be seen as one trait determined by both male and female genotypes. Animal model analyses of a 46-year study of red-billed gulls (Larus novaehollandiae scopulinus) revealed that laying date was not heritable in females (h(2) = 0.001 +/- 0.030), but significantly so in males (h(2) =...

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