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dc.contributor.authorDavies, Nicholas
dc.contributor.authorGardner, Andy
dc.date.accessioned2018-05-09T12:30:14Z
dc.date.available2018-05-09T12:30:14Z
dc.date.issued2018-05
dc.identifier.citationDavies , N & Gardner , A 2018 , ' Monogamy promotes altruistic sterility in insect societies ' , Royal Society Open Science , vol. 5 , 172190 . https://doi.org/10.1098/rsos.172190en
dc.identifier.issn2054-5703
dc.identifier.otherPURE: 252719902
dc.identifier.otherPURE UUID: 23df6343-cfea-4a6f-b734-b1d5132cac76
dc.identifier.otherScopus: 85046624808
dc.identifier.otherWOS: 000433498000068
dc.identifier.urihttps://hdl.handle.net/10023/13318
dc.description.abstractMonogamy is associated with sibling-directed altruism in multiple animal taxa, including insects, birds and mammals. Inclusive-fitness theory readily explains this pattern by identifying high relatedness as a promoter of altruism. In keeping with this prediction, monogamy should promote the evolution of voluntary sterility in insect societies if sterile workers make for better helpers. However, a recent mathematical population-genetics analysis failed to identify a consistent effect of monogamy on voluntary worker sterility. Here, we revisit that analysis. First, we relax genetic assumptions, considering not only alleles of extreme effect—encoding either no sterility or complete sterility—but also alleles with intermediate effects on worker sterility. Second, we broaden the stability analysis—which focused on the invasibility of populations where either all workers are fully sterile or all workers are fully reproductive—to identify where intermediate pure or mixed evolutionarily stable states may occur. Third, we consider a broader range of demographically explicit ecological scenarios relevant to altruistic worker non-reproduction and to the evolution of eusociality more generally. We find that, in the absence of genetic constraints, monogamy always promotes altruistic worker sterility and may inhibit spiteful worker sterility. Our extended analysis demonstrates that an exact population-genetics approach strongly supports the prediction of inclusive-fitness theory that monogamy promotes sib-directed altruism in social insects
dc.format.extent30
dc.language.isoeng
dc.relation.ispartofRoyal Society Open Scienceen
dc.rights© 2018 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.en
dc.subjectEusocialityen
dc.subjectHaplodiploidyen
dc.subjectHymenopteraen
dc.subjectInclusive fitnessen
dc.subjectKin selectionen
dc.subjectPromiscuityen
dc.subjectQH301 Biologyen
dc.subjectQH426 Geneticsen
dc.subjectDASen
dc.subject.lccQH301en
dc.subject.lccQH426en
dc.titleMonogamy promotes altruistic sterility in insect societiesen
dc.typeJournal articleen
dc.contributor.sponsorNERCen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Biologyen
dc.contributor.institutionUniversity of St Andrews. Centre for Biological Diversityen
dc.identifier.doihttps://doi.org/10.1098/rsos.172190
dc.description.statusPeer revieweden
dc.identifier.grantnumberNE/K009524/1en


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