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dc.contributor.authorBoulton, Rebecca A.
dc.contributor.authorCook, Nicola
dc.contributor.authorGreenway, E. V.
dc.contributor.authorGlaser, Georgina L.
dc.contributor.authorGreen, Jade
dc.contributor.authorShuker, David M.
dc.identifier.citationBoulton , R A , Cook , N , Greenway , E V , Glaser , G L , Green , J & Shuker , D M 2019 , ' Local mate competition modifies the costs of mating in a mostly monandrous parasitoid wasp ' , Behavioral Ecology , vol. 30 , no. 2 , pp. 417-425 .
dc.identifier.otherPURE: 258744167
dc.identifier.otherPURE UUID: 0a266805-71c7-4d63-94d2-e772a1530568
dc.identifier.otherScopus: 85064105099
dc.identifier.otherORCID: /0000-0003-4462-0116/work/60427603
dc.identifier.otherWOS: 000464932900017
dc.descriptionThis work was supported by a Natural Environment Research Council (NERC) Doctoral training studentship to R.A.B.en
dc.description.abstractThe costs and benefits of mating are frequently measured in order to understand why females mate multiply. However, to separate the factors that initiate the evolution of polyandry (from monandry) from the factors that maintain it, we must ascertain how the environmental context changes the economics of mating. Here, we show how context-dependent costs of mating can lead to the evolution of polyandry in a species that is monandrous in the wild, the parasitoid wasp Nasonia vitripennis. We have previously shown that when females have insufficient time between mating and gaining access to hosts for oviposition, they appear unable to process sperm effectively and end up overproducing sons (i.e., laying unfertilized eggs, since Nasonia is in haplodiploid). This overproduction of sons is costly due to selection on sex allocation in this species. Although N. vitripennis is monandrous in the wild, polyandry evolves under laboratory culture despite this sex allocation cost. In this study, we show why: When groups of females oviposit together, as they do in laboratory culture, selection on sex allocation via local mate competition (LMC) is reduced, increasing the reproductive value of sons. This relaxes the fitness cost of male production. Overproduction of sons still occurs, but it is penalized less in terms of fitness than when females oviposit alone, under high LMC conditions, as they typically do in the field. Our results highlight how the costs and benefits of mating can vary under different ecologically relevant conditions, in this case the spatiotemporal distribution of resources and competitors, promoting the evolution of polyandry from monandry, and vice versa.
dc.relation.ispartofBehavioral Ecologyen
dc.rightsCopyright © The Author(s) 2019. Published by Oxford University Press on behalf of the International Society for Behavioral Ecology. All rights reserved. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectLocal mate competitionen
dc.subjectSex allocationen
dc.subjectSexual selectionen
dc.subjectQH301 Biologyen
dc.subjectEcology, Evolution, Behavior and Systematicsen
dc.subjectAnimal Science and Zoologyen
dc.titleLocal mate competition modifies the costs of mating in a mostly monandrous parasitoid waspen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Centre for Biological Diversityen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews.Institute of Behavioural and Neural Sciencesen
dc.description.statusPeer revieweden

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