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dc.contributor.authorFaria, Gonçalo
dc.contributor.authorGardner, Andy
dc.date.accessioned2020-03-26T17:30:02Z
dc.date.available2020-03-26T17:30:02Z
dc.date.issued2020-03
dc.identifier266433347
dc.identifier9369150c-ada9-4f35-9101-3d48fb2f5aa2
dc.identifier85082067137
dc.identifier000521350600003
dc.identifier.citationFaria , G & Gardner , A 2020 , ' Does kin discrimination promote cooperation? ' , Biology Letters , vol. 16 , no. 3 , 20190742 . https://doi.org/10.1098/rsbl.2019.0742en
dc.identifier.issn1744-9561
dc.identifier.otherORCID: /0000-0002-1511-8680/work/71221661
dc.identifier.urihttps://hdl.handle.net/10023/19714
dc.descriptionFunding: Natural Environment Research Council Independent Research Fellowship (Grant Number NE/K009524/1) and a European Research Council Consolidator grant no. (771387) (A.G.).en
dc.description.abstractGenetic relatedness is a key driver of the evolution of cooperation. One mechanism that may ensure social partners are genetically related is kin discrimination, in which individuals are able to distinguish kin from non-kin and adjust their behaviour accordingly. However, the impact of kin discrimination upon the overall level of cooperation remains obscure. Specifically, while kin discrimination allows an individual to help more-related social partners over less-related social partners, it is unclear whether and how the population average level of cooperation that is evolutionarily favoured should differ under kin discrimination versus indiscriminate social behaviour. Here, we perform a general mathematical analysis in order to assess whether, when and in which direction kin discrimination changes the average level of cooperation in an evolving population. We find that kin discrimination may increase, decrease or leave unchanged the average level of cooperation, depending upon whether the optimal level of cooperation is a convex, concave or linear function of genetic relatedness. We develop an extension of the classic ‘tragedy of the commons' model of cooperation in order to provide an illustration of these results. Our analysis provides a method to guide future research on the evolutionary consequences of kin discrimination.
dc.format.extent4
dc.format.extent352388
dc.language.isoeng
dc.relation.ispartofBiology Lettersen
dc.subjectAltruismen
dc.subjectInclusive fitnessen
dc.subjectJensen's inequalityen
dc.subjectKin selectionen
dc.subjectKin recognitionen
dc.subjectVeil of ignoranceen
dc.subjectQH301 Biologyen
dc.subjectQH426 Geneticsen
dc.subjectT-DASen
dc.subject.lccQH301en
dc.subject.lccQH426en
dc.titleDoes kin discrimination promote cooperation?en
dc.typeJournal articleen
dc.contributor.sponsorNERCen
dc.contributor.sponsorEuropean Research Councilen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.identifier.doi10.1098/rsbl.2019.0742
dc.description.statusPeer revieweden
dc.identifier.grantnumberNE/K009524/1en
dc.identifier.grantnumber771387en


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