Publikation: What is cooperative breeding in mammals and birds? : Removing definitional barriers for comparative research
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Cooperative breeding (i.e. when alloparents care for the offspring of other group members) has been studied for nearly a century. Yet, inconsistent definitions of this breeding system still hamper comparative research. Here, we identify two major inconsistencies, discuss their consequences and propose a way forward. First, some researchers restrict the term ‘cooperative breeding’ to species with non-breeding alloparents. We show that such restrictive definitions lack distinct quantitative criteria to define non-breeding alloparents. This ambiguity, we argue, reflects the reproductive-sharing continuum among cooperatively breeding species. We therefore suggest that cooperative breeding should not be restricted to the few species with extreme reproductive skew and should be defined independent of the reproductive status of alloparents. Second, definitions rarely specify the type, extent and prevalence of alloparental care required to classify species as cooperative breeders. We thus analysed published data to propose qualitative and quantitative criteria for alloparental care. We conclude by proposing the following operational definition: cooperative breeding is a reproductive system where >5% of broods/litters in at least one population receive species-typical parental care and conspecifics provide proactive alloparental care that fulfils >5% of at least one type of the offspring's needs. This operational definition is designed to increase comparability across species and disciplines while allowing to study the intriguing phenomenon of cooperative breeding as a behaviour with multiple dimensions.
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BEN MOCHA, Yitzchak, Sophie SCEMAMA DE GIALLULY, Michael GRIESSER, Shai MARKMAN, 2023. What is cooperative breeding in mammals and birds? : Removing definitional barriers for comparative research. In: Biological Reviews. Wiley. 2023, 98(6), S. 1845-1861. ISSN 1464-7931. eISSN 1469-185X. Verfügbar unter: doi: 10.1111/brv.12986BibTex
@article{BenMocha2023-06-18coope-67309, year={2023}, doi={10.1111/brv.12986}, title={What is cooperative breeding in mammals and birds? : Removing definitional barriers for comparative research}, number={6}, volume={98}, issn={1464-7931}, journal={Biological Reviews}, pages={1845--1861}, author={Ben Mocha, Yitzchak and Scemama de Gialluly, Sophie and Griesser, Michael and Markman, Shai} }
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