dc.contributor.author | Gamelon, Marlène | |
dc.contributor.author | Gayet, Thibault | |
dc.contributor.author | Baubet, Eric | |
dc.contributor.author | Devillard, Sébastien | |
dc.contributor.author | Say, Ludovic | |
dc.contributor.author | Brandt, Serge | |
dc.contributor.author | Pelabon, Christophe | |
dc.contributor.author | Sæther, Bernt-Erik | |
dc.date.accessioned | 2019-05-03T07:39:41Z | |
dc.date.available | 2019-05-03T07:39:41Z | |
dc.date.created | 2018-04-10T08:33:47Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Behavioral Ecology. 2018, 29 (4), 904-909. | nb_NO |
dc.identifier.issn | 1045-2249 | |
dc.identifier.uri | http://hdl.handle.net/11250/2596395 | |
dc.description.abstract | During 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.iso | eng | nb_NO |
dc.publisher | Oxford University Press | nb_NO |
dc.title | Does multiple paternity explain phenotypic variation among offspring in wild boar? | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 904-909 | nb_NO |
dc.source.volume | 29 | nb_NO |
dc.source.journal | Behavioral Ecology | nb_NO |
dc.source.issue | 4 | nb_NO |
dc.identifier.doi | 10.1093/beheco/ary056 | |
dc.identifier.cristin | 1578486 | |
dc.relation.project | Norges forskningsråd: 223257 | nb_NO |
dc.description.localcode | This 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/ary056 | nb_NO |
cristin.unitcode | 194,66,10,0 | |
cristin.unitname | Institutt for biologi | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.qualitycode | 2 | |