Mating strategies in the Rock Sparrow Petronia petronia: the role of female quality

摘要: We investigated the breeding phenology and output in relation to female status polygamous Rock Sparrow (Petronia petronia). The proportion of males was around 0.38 though it varied over study periods. selected 169 clutches which pair's known. Within these clutches, we compared biology females that mate monogamously, started early with a male (primary females) late chose an already mated (secondary females). Secondary produced significantly fewer fledglings than monogamous who system. Our results showed primary were heavier secondary females. No age effect detected. Overall, our indicate female's decision monogamously or systems probably not independent her phenotype (body condition).