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Article

Components of productivity in black-legged kittiwakes Rissa tridactyla: response to supplemental feeding

V. A. Gill, Auteur ; S. A. Hatch, Auteur

Dans Journal of Avian Biology (33(2) JUN 2002)

In contrast to the high productivity of black-legged kittiwakes in Britain, kittiwakes at many colonies in Alaska have failed chronically to reproduce since the mid 1970s. To determine if food is limiting productivity and, if so, at what stages [...]

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Article

Sperm age and reproductive performance in a strictly monogamous bird - an experimental study

J. White, Auteur ; F. Helfenstein, Auteur ; E. Danchin, Auteur ; S. A. Hatch, Auteur ; R. H. Wagner, Auteur

Dans Journal of Ornithology (147(5, Suppl. 1) AUG 2006)

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