作者: Gergely Hegyi , László Zsolt Garamszegi , Marcel Eens , János Török
DOI: 10.1007/S00114-008-0408-6
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摘要: Female ornaments in species with conventional sex roles often indicate individual quality, but the evolutionary forces maintaining them are less clear. Sexual competition for breeding opportunities may represent an important role female signals, especially polygynous species, there is little experimental evidence this. The wing patch size (WPS) of collared flycatchers indicates age and body condition predicts social mating patterns. We challenged nest-building females decoy varying WPS found that aggressive response residents increased WPS, suggesting a this ornament territorial competition. Our results explain why distances when mated to male competitive interactions similar males same population.