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dc.contributor.authorGamelon, Marlène
dc.contributor.authorGayet, Thibault
dc.contributor.authorBaubet, Eric
dc.contributor.authorDevillard, Sébastien
dc.contributor.authorSay, Ludovic
dc.contributor.authorBrandt, Serge
dc.contributor.authorPelabon, Christophe
dc.contributor.authorSæther, Bernt-Erik
dc.date.accessioned2019-05-03T07:39:41Z
dc.date.available2019-05-03T07:39:41Z
dc.date.created2018-04-10T08:33:47Z
dc.date.issued2018
dc.identifier.citationBehavioral Ecology. 2018, 29 (4), 904-909.nb_NO
dc.identifier.issn1045-2249
dc.identifier.urihttp://hdl.handle.net/11250/2596395
dc.description.abstractDuring pregnancy, littermates compete to extract maternal resources from the placenta. Unequal extraction of resources leads to developmental differences among offspring and thus within-litter variation in offspring mass. Because competition among littermates can be stronger among half-sibs, multiple paternity may represent an adaptive strategy allowing females to increase within-litter phenotypic variation among offspring when facing variable environments. Wild boar (Sus scrofa) females produce large litters with diversified offspring in terms of body mass. Additionally, multiple paternities within a litter have been observed in this promiscuous species. One can hypothesize that multiple paternity represents the mechanism by which females increase within-litter phenotypic variation. Combining long-term monitoring data with paternity analyses in a wild boar population, we tested whether the increase in the number of fathers within a litter explained the increase in within-litter variation in offspring mass observed in large litters. We showed that heavy females mated earlier during the rut, produced larger litters with a higher number of fathers and more variable fetus mass than lighter females. Within-litter variation of offspring mass increased with gestation stage and litter size, suggesting differential allocation of maternal resource among offspring “in utero.” However, we found only a weak paternal effect on offspring mass and no direct effect of the number of fathers on the within-litter variation in offspring mass. These results indicate that differential maternal allocation to offspring during pregnancy is unlikely related to paternal identity in this species.nb_NO
dc.language.isoengnb_NO
dc.publisherOxford University Pressnb_NO
dc.titleDoes multiple paternity explain phenotypic variation among offspring in wild boar?nb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber904-909nb_NO
dc.source.volume29nb_NO
dc.source.journalBehavioral Ecologynb_NO
dc.source.issue4nb_NO
dc.identifier.doi10.1093/beheco/ary056
dc.identifier.cristin1578486
dc.relation.projectNorges forskningsråd: 223257nb_NO
dc.description.localcodeThis is a pre-copyedited, author-produced version of an article accepted for publication in Behavioral Ecology following peer review. The version of record is available online at: https://doi.org/10.1093/beheco/ary056nb_NO
cristin.unitcode194,66,10,0
cristin.unitnameInstitutt for biologi
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode2


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