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Pre-breeding energy requirements: thyroid hormone, metabolism and the timing of reproduction in house sparrows Passer domesticus

O. Chastel, Auteur ; A. Lacroix, Auteur ; M. Kersten, Auteur

Dans Journal of Avian Biology (34(3) SEP 2003)

We measured thyroid hormone (T3) levels and energy expenditure of pre-breeding house sparrows Passer domesticus in relation to the timing of breeding and reproductive success. The onset of reproduction was synchronised in two waves, separated by[...]

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