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Group size affects social relationships in yellow-bellied marmots (Marmota flaviventris)

dc.creatorMaldonado Chaparro, Adriana Alexandraspa
dc.creatorHubbard, Lilahspa
dc.creatorBlumstein, Daniel T.spa
dc.date.accessioned2020-08-19T14:43:53Z
dc.date.available2020-08-19T14:43:53Z
dc.date.created2015-04-15spa
dc.description.abstractDemographic variation, such as changes in population size, affects group-living conditions and thus creates new opportunities for individuals to interact socially. To understand how this variation in the social environment affects social structure, we used social network analysis to explore affiliative behaviors of nonpup (i.e., 1 year or older), female, yellow-bellied marmots (Marmota flaviventris). We examined 4 social attributes (outdegree, indegree, closeness centrality, and betweenness centrality) to measure social plasticity in response to group size variation. We found that, in response to increases in group size, individuals established fewer social connections than possible, which suggests that marmots experience constraints on sociality. Similarly, closeness and betweenness centrality decreased as group size increased, suggesting that females are expected to lose influence over other members of the group as group size increases, and there are substantial constraints on marmots transmitting information to others in large groups. Our results also suggest that group-level responses, such as behavioral plasticity, can be explained by individual-level mechanisms that evaluate the costs and benefits of sociality. Interestingly, the mechanistic basis of these group-level responses may, at times, follow patterns expected by chance. We propose that further research is necessary to uncover the mechanisms underlying the individual-level behavioral response. Like group size effects studied in other domains, formally considering group size effects on social structure may shed novel light on the constraints on sociality.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1093/beheco/arv034
dc.identifier.issnISSN: 1045-2249
dc.identifier.issnEISSN: 465-7279
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/27787
dc.language.isoengspa
dc.publisherInternational Society of Behavioural Ecologyspa
dc.publisherOxford University Pressspa
dc.relation.citationEndPage915
dc.relation.citationIssueNo. 3
dc.relation.citationStartPage909
dc.relation.citationTitleBehavioral Ecology
dc.relation.citationVolumeVol. 26
dc.relation.ispartofBehavioral Ecology, ISSN: 1045-2249;EISSN: 1465-7279, Vol.26, No.3 (May-June 2015); pp. 909–915spa
dc.relation.urihttps://academic.oup.com/beheco/article/26/3/909/235204spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.sourceBehavioral Ecologyspa
dc.source.instnameinstname:Universidad del Rosario
dc.source.reponamereponame:Repositorio Institucional EdocUR
dc.subject.keywordCentralityspa
dc.subject.keywordDegreespa
dc.subject.keywordGroup size effectsspa
dc.subject.keywordSocial networksspa
dc.subject.keywordYellow-bellied marmotsspa
dc.titleGroup size affects social relationships in yellow-bellied marmots (Marmota flaviventris)spa
dc.title.TranslatedTitleEl tamaño del grupo afecta las relaciones sociales en las marmotas de vientre amarillo (Marmota flaviventris)spa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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