Reproductive correlates of social network variation in plurally breeding degus (Octodon degus)

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dc.contributor.authorWey, Tina W.
dc.contributor.authorBurger, Joseph R.
dc.contributor.authorEbensperger, Luis A.
dc.contributor.authorHayes, Loren D.
dc.date.accessioned2024-01-10T12:42:07Z
dc.date.available2024-01-10T12:42:07Z
dc.date.issued2013
dc.description.abstractStudying the causes and reproductive consequences of social variation can provide insight into the evolutionary basis of sociality. Individuals are expected to behave adaptively to maximize reproductive success, but reproductive outcomes can also depend on group structure. Degus (Octodon degus) are plurally breeding rodents, in which females allonurse indiscriminately. However, communal rearing does not appear to enhance female reproductive success, and larger group sizes are correlated with decreasing per capita pup production. To further investigate mechanisms underlying these patterns, we asked how differences in sex, season and average group reproductive success are related to degu association networks. We hypothesized that if reproductive differences mirror social relationships, then females (core group members) should show stronger and more stable associations than males, and female association strength should be strongest during lactation. We also hypothesized that, at the group level, social cohesion would increase reproductive output, while social conflict would decrease it. Females did have higher association strength and more preferred partners than males, but only during lactation, when overall female associations increased. Females also had more stable preferred social partnerships between seasons. A measure of social cohesion (average association strength) was not related to per capita pup production of female group members, but potential social conflict (heterogeneity of association strengths) was negatively related to per capita pup production of female group members. Our results highlight temporal and multilevel patterns of social structure that may reflect reproductive costs and benefits to females. (C) 2013 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.
dc.description.funderFONDECYT
dc.description.funderNational Science Foundation
dc.description.funderCentro de Estudios Avanzados en Ecologia and Biodiversidad
dc.description.funderSigma Xi
dc.description.funderNational Science Foundation (NSF)
dc.description.funderAmerican Society of Mammalogists
dc.description.funderTinker Foundation Research Grant
dc.description.funderLatin American and Iberian Institute of the University of New Mexico (UNM)
dc.description.funderOffice of Graduate Studies at UNM
dc.description.funderNational Institututes of Health NIH-PIBBS
dc.description.funderNATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING
dc.fechaingreso.objetodigital2024-03-19
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.anbehav.2013.03.035
dc.identifier.eissn1095-8282
dc.identifier.issn0003-3472
dc.identifier.pubmedidMEDLINE:24511149
dc.identifier.urihttps://doi.org/10.1016/j.anbehav.2013.03.035
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77482
dc.identifier.wosidWOS:000320651200032
dc.information.autorucCiencias Biológicas;Ebensperger L;S/I;73141
dc.issue.numero6
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final1414
dc.pagina.inicio1407
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
dc.revistaANIMAL BEHAVIOUR
dc.rightsacceso restringido
dc.subjectassociation strength
dc.subjectdegu
dc.subjectfitness
dc.subjectgroup structure
dc.subjectOctodon degus
dc.subjectsocial conflict
dc.subjectsocial heterogeneity
dc.subjectsocial network
dc.subjectFISSION-FUSION DYNAMICS
dc.subjectCOMMUNALLY REARING RODENT
dc.subjectASSOCIATION PATTERNS
dc.subjectFITNESS CONSEQUENCES
dc.subjectSEXUAL SELECTION
dc.subjectGROUP-SIZE
dc.subjectEVOLUTION
dc.subjectDOMINANCE
dc.subjectBEHAVIOR
dc.subjectBONDS
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleReproductive correlates of social network variation in plurally breeding degus (Octodon degus)
dc.typeartículo
dc.volumen85
sipa.codpersvinculados73141
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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