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- NAM, K.-B., et al. Show all 3 Authors
- Journal of evolutionary biology 2011 v.24 no.4 pp. 904-913
- Aegithalos; birds; breeding; daughters; females; sex allocation; sex ratio; sons
- ... In cooperatively breeding species, the fitness consequences of producing sons or daughters depend upon the fitness impacts of positive (repayment hypothesis) and negative (local competition hypothesis) social interactions among relatives. In this study, we examine brood sex allocation in relation to the predictions of both the repayment and the local competition hypotheses in the cooperatively bre ...