Direct fitness benefits and kinship of social foraging groups in an Old World tropical babbler

Sara A Kaiser, Thomas E Martin, Juan C Oteyza, Connor Armstad, Robert C Fleischer and Michael TaborskyHandling Editor

Behavioral Ecology, 2018, vol. 29, issue 2, 468-478

Abstract: The tropical gray-throated babbler exhibits an unusual social system in which individuals form social foraging groups that live together year-round. Groups are composed of one or 2 breeding pairs accompanied by nonbreeding males and females that are mostly unrelated and rarely help in breeding. We show that some male group members gained paternity within groups, independent of their relatedness to the breeding pair. We found little evidence for brood parasitism by female group members.

Keywords: facultative cooperative breeding; genetic mating system; Old World tropics; parentage; relatedness (search for similar items in EconPapers)
Date: 2018
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