Genetic differences between early- and late-breeding Eurasian kestrels

Casagrande, Stefania; Dell'Omo, G.; Costantini, D.; Tagliavini, J.

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Genetic differences between early- and late-breeding Eurasian kestrels

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Casagrande, S., Dell'Omo, G., Costantini, D., & Tagliavini, J. (2006). Genetic differences between early- and late-breeding Eurasian kestrels. Evolutionary Ecology Research, 8(6), 1029-1038.

引用: https://hdl.handle.net/11858/00-001M-0000-0029-2B36-9

要旨

Question: Is there a genetic difference between early-breeding kestrels (Falco tinnunculus), which typically lay five or six eggs, and late-breeding kestrels, which, although sympatric, usually lay only four eggs? Field site: Cultivated and set-aside fields of a Mediterranean area of 1200 km(2), near Rome, Italy. Methods: We compared the genotypes of chicks belonging to the two groups by analysing the difference at five microsatellite loci. Conclusions: Early- and late-hatched chicks are genetically dissimilar, with an average F-ST-value of 0.058. This result suggests assortative mating-by-time and the possibility of adaptive divergence between early and late breeders within sympatric populations.