Maternal lineages best explain the associations of a semisocial marsupial

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dc.contributor.authorBlyton, Michaelaen_AU
dc.contributor.authorBanks, Samuelen_AU
dc.contributor.authorLindenmayer, David Ben_AU
dc.date.accessioned2015-12-10T23:19:45Z
dc.date.issued2014
dc.date.updated2015-12-10T10:17:20Z
dc.description.abstractKinship is a key factor that can influence the fitness benefits associated with social behaviors through the operation of kin selection. A species' patterns of dispersal, and resulting fine-scale spatial genetic structure, can mediate kin selection by altering both the capacity for kin cooperation and the intensity of kin competition. In this study, we used proximity logger collars and multilocus genotypes to investigate how genetic relatedness influences the associations of mountain brushtail possums (Trichosurus cunninghami) in the context of fine-scale spatial genetic structure. We found distinct differences between diurnal and nocturnal associations. Diurnal (den-sharing) associations occurred within a small subset of mainly male-female dyads, whose members were socially pair-bonded. In contrast, nocturnal associations occurred between multiple individuals of both sexes. Spatial proximity was an important factor influencing the nocturnal encounter rate. Further, proximity was associated with relatedness between individuals, a pattern that was stronger among females than males. After proximity was accounted for, we found that possums who shared a mitochondrial haplotype associated more often and for longer during nocturnal activity. By comparison, autosomal nuclear relatedness metrics did not explain associations. This is likely to represent, in part, mother-offspring associations but may also indicate a general preference for associating with familiar individuals. Females also associated for longer than did males, which may be attributed to a combination of kin preference and differences between the sexes in genetic structuring. Thus, this study demonstrates the way social behaviors may be shaped by how kin selection and fine-scale spatial genetic structure interact.
dc.identifier.issn1045-2249
dc.identifier.urihttp://hdl.handle.net/1885/66032
dc.language.isoen_AUen_AU
dc.publisherOxford University Press
dc.sourceBehavioral Ecology
dc.titleMaternal lineages best explain the associations of a semisocial marsupial
dc.typeJournal article
local.bibliographicCitation.issue5
local.bibliographicCitation.lastpage1222
local.bibliographicCitation.startpage1212
local.contributor.affiliationBlyton, Michaela, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationLindenmayer, David, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationBanks, Samuel, College of Medicine, Biology and Environment, ANU
local.contributor.authoremailu4633309@anu.edu.auen_AU
local.contributor.authoruidBlyton, Michaela, u4633309
local.contributor.authoruidLindenmayer, David, u8808483
local.contributor.authoruidBanks, Samuel, u4446668
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor060201 - Behavioural Ecology
local.identifier.absfor060208 - Terrestrial Ecology
local.identifier.absseo960806 - Forest and Woodlands Flora, Fauna and Biodiversity
local.identifier.ariespublicationu4279067xPUB1204
local.identifier.citationvolume25
local.identifier.doi10.1093/beheco/aru116
local.identifier.scopusID2-s2.0-84908280395
local.identifier.thomsonID000342360200029
local.identifier.uidSubmittedByu4279067
local.type.statusPublished Versionen_AU

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