La Tour du Valat

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Differences in size between first and replacement clutches match the seasonal decline in single clutches in Tree Swallows Tachycineta bicolor

Julia Karagicheva, Auteur ; Matthew Liebers, Auteur ; Eldar Rakhimberdiev, Auteur ; Kelly K. Hallinger, Auteur ; Anatoly Saveliev, Auteur ; David. W. Winkler, Auteur

Dans Ibis (158(3) July 2016)

The seasonal decline in clutch size in birds can be a response to the environmentally conditioned decrease in prospects for offspring or a consequence of a lower physical ability of late-breeding females. To find out which of the explanations ap[...]

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