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Relative abundance of males to females affects behaviour, condition and immune function in a captive population of dark-eyed juncos Junco hyemalis

Timothy J. Greives, Auteur ; Joseph M. Casto, Auteur ; Ellen D. Ketterson, Auteur

Dans Journal of Avian Biology (38(3) MAY 2007)

Relative numbers of males and females in breeding groups may vary from expected values owing to a variety of factors. To determine how sex ratio might influence individual phenotypes in a captive Population of dark-eyed juncos Junco hyemalis dur[...]

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