Počet záznamů: 1

Extra-pair fertilizations contribute to selection on secondary male ornamentation in a socially monogamous passerine

  1. 1.
    0331396 - UBO-W 2010 RIV GB eng J - Článek v odborném periodiku
    Albrecht, Tomáš - Vinkler, Michal - Schnitzer, J. - Poláková, Radka - Munclinger, P. - Bryja, Josef
    Extra-pair fertilizations contribute to selection on secondary male ornamentation in a socially monogamous passerine.
    Journal of Evolutionary Biology. Roč. 22, č. 10 (2009), s. 2020-2030 ISSN 1010-061X
    Grant CEP: GA ČR GA206/06/0851; GA AV ČR IAA600930608; GA MŠk LC06073
    Výzkumný záměr: CEZ:AV0Z60930519
    Klíčová slova: extra-pair paternity * sexual selection * variance in fitness * within-pair reproductive success
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 3.816, rok: 2009

    In this study, we test the hypothesis that extra-pair fertilizations (EPF) contribute to the evolution or maintenance of male feather ornamentation in a sexually dichromatic passerine, the Scarlet Rosefinch, Carpodacus erythrinus. We show that the colouration of ornamental breast feathers is a good predictor of basic sources of variation in male annual reproductive output in rosefinches and that the annual realized reproductive success of males is positively associated with measures of ornamental colouration only when gains and losses because of EPF are considered. The results indicate that EPF in rosefinches may rely on absolute (good genes) rather than self referential (genetic complementarity) criteria of mate choice. Our study corroborates the potentially important role of EPF in the evolution and/or maintenance of elaborate male ornaments in socially monogamous taxa.
    Trvalý link: http://hdl.handle.net/11104/0176922