Burrow limitations and group living in the communally rearing rodent, Octodon degus

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dc.contributor.authorEbensperger, Luis A.
dc.contributor.authorChesh, Adrian S.
dc.contributor.authorCastro, Rodrigo A.
dc.contributor.authorOrtiz Tolhuysen, Liliana
dc.contributor.authorQuirici, Veronica
dc.contributor.authorBurger, Joseph Robert
dc.contributor.authorSobrero, Raul
dc.contributor.authorHayes, Loren D.
dc.date.accessioned2024-01-10T12:04:32Z
dc.date.available2024-01-10T12:04:32Z
dc.date.issued2011
dc.description.abstractGroup living is thought to evolve whenever individuals attain a net fitness advantage due to reduced predation risk or enhanced foraging efficiency, but also when individuals are forced to remain in groups, which often occurs during high-density conditions due to limitations of critical resources for independent breeding. The influence of ecological limitations on sociality has been studied little in species in which reproduction is more evenly shared among group members. Previous studies in the caviomorph rodent Octodon degus (a New World hystricognath) revealed no evidence that group living confers an advantage and suggest that burrow limitations influence formation of social groups. Our objective was to examine the relevance of ecological limitations on sociality in these rodents. Our 4-year study revealed no association between degu density and use of burrow systems. The frequency with which burrow systems were used by degus was not related to the quality of these structures; only in 1 of the 4 years did the frequency of burrow use decrease with decreasing abundance of food. Neither the number of females per group nor total group size (related measures of degu sociality) changed with yearly density of degus. Although the number of males within social groups was lower in 2008, this variation was not related clearly to varying density. The percentage of females in social groups that bred was close to 99% and did not change across years of varying density. Our results suggest that sociality in degus is not the consequence of burrow limitations during breeding. Whether habitat limitations contribute to variation in vertebrate social systems is discussed.
dc.description.funderChilean Fondo Nacional de Desarrollo Cientifico y Tecnologico
dc.description.funderNational Science Foundation
dc.description.funderLouisiana Board of Regents Research and Development
dc.description.funderPercy Sladen Memorial grant
dc.description.funderProgram 1 of Centro de Estudios Avanzados en Ecologia and Biodiversidad
dc.description.funderUniversity of Louisiana at Monroe Howard Hughes Medical Institute
dc.description.funderOffice of Academic Affairs at the University of Louisiana at Monroe
dc.description.funderAmerican Society of Mammalogists
dc.description.funderSigma Xi
dc.description.funderScientific Research Society
dc.description.funderNATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING
dc.format.extent10 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1644/09-MAMM-S-383.1
dc.identifier.issn0022-2372
dc.identifier.pubmedidMEDLINE:22328789
dc.identifier.urihttps://doi.org/10.1644/09-MAMM-S-383.1
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75823
dc.identifier.wosidWOS:000287898700004
dc.information.autorucCiencias Biológicas; Sobrero R;S/I;182512
dc.information.autorucEconomía y Administración;Castro R;S/I;202327
dc.information.autorucCiencias Biológicas;Ebensperger L ;S/I;73141
dc.information.autorucCiencias Biológicas;Hayes LD ;S/I;160160
dc.information.autorucCiencias Biológicas;Ortiz L;S/I;166623
dc.information.autorucCiencias Biológicas;Quirici R ;S/I;158188
dc.issue.numero1
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final30
dc.pagina.inicio21
dc.publisherALLIANCE COMMUNICATIONS GROUP DIVISION ALLEN PRESS
dc.revistaJOURNAL OF MAMMALOGY
dc.rightsregistro bibliográfico
dc.subjectcaviomorph rodents
dc.subjectdensity
dc.subjectecological constraints
dc.subjecthabitat
dc.subjecthystricognath
dc.subjectsociality
dc.subjectECOLOGICAL CONSTRAINTS
dc.subjectRANGE AREAS
dc.subjectGROUP-SIZE
dc.subjectSOCIAL-ORGANIZATION
dc.subjectDELAYED DISPERSAL
dc.subjectCLOWN ANEMONEFISH
dc.subjectDIURNAL RODENT
dc.subjectBREEDER RODENT
dc.subjectPRAIRIE VOLES
dc.subjectPUP SURVIVAL
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleBurrow limitations and group living in the communally rearing rodent, Octodon degus
dc.typeartículo
dc.volumen92
sipa.codpersvinculados182512
sipa.codpersvinculados202327
sipa.codpersvinculados73141
sipa.codpersvinculados160160
sipa.codpersvinculados166623
sipa.codpersvinculados158188
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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