Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/7275
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dc.contributor.authorWright, Jonathanen
dc.contributor.authorMcDonald, Paulen
dc.contributor.authorMarvelde, Luc teen
dc.contributor.authorKazem, Anahita J Nen
dc.contributor.authorBishop, Charles Men
dc.date.accessioned2011-05-03T11:00:00Z-
dc.date.issued2010-
dc.identifier.citationProceedings of the Royal Society B: Biological Sciences, v.277, p. 437-445en
dc.identifier.issn1471-2954en
dc.identifier.issn0962-8452en
dc.identifier.urihttps://hdl.handle.net/1959.11/7275-
dc.description.abstractIndirect fitness benefits from kin selection can explain why non-breeding individuals help raise the young of relatives. However, the evolution of helping by non-relatives requires direct fitness benefits, for example via group augmentation. Here, we examine nest visit rates, load sizes and prey types delivered by breeding pairs and their helpers in the cooperatively breeding bell miner ('Manorina melanophrys'). In this system, males remain in their natal colony while young females typically disperse, and helpers of both sexes often assist at multiple nests concurrently. We found extremely clear evidence for the expected effect of genetic relatedness on individual helping effort per nest within colonies. This positive incremental effect of kinship was facultative - i.e. largely the result of within-individual variation in helping effort. Surprisingly, no sex differences were detectable in any aspect of helping, and even non-relatives provided substantial aid. Helpers and breeders of both sexes regulated their provisioning effort by responding visit-by-visit to changes in nestling begging. Helping behaviour in bell miners therefore appears consistent with adaptive cooperative investment in the brood, and kin-selected care by relatives. Similar investment by 'unrelated' helpers of both sexes argues against direct fitness benefits, but is perhaps explained by kin selection at the colony level.en
dc.languageenen
dc.publisherThe Royal Society Publishingen
dc.relation.ispartofProceedings of the Royal Society B: Biological Sciencesen
dc.titleHelping effort increases with relatedness in bell miners, but 'unrelated' helpers of both sexes still provide substantial careen
dc.typeJournal Articleen
dc.identifier.doi10.1098/rspb.2009.1360en
dc.subject.keywordsBehavioural Ecologyen
dc.subject.keywordsEthology and Sociobiologyen
dc.subject.keywordsAnimal Behaviouren
local.contributor.firstnameJonathanen
local.contributor.firstnamePaulen
local.contributor.firstnameLuc teen
local.contributor.firstnameAnahita J Nen
local.contributor.firstnameCharles Men
local.subject.for2008060201 Behavioural Ecologyen
local.subject.for2008060801 Animal Behaviouren
local.subject.for2008060304 Ethology and Sociobiologyen
local.subject.seo2008970106 Expanding Knowledge in the Biological Sciencesen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailpmcdon21@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20110322-101748en
local.publisher.placeUnited Kingdomen
local.identifier.runningnumber1680en
local.format.startpage437en
local.format.endpage445en
local.identifier.scopusid76249115315en
local.peerreviewedYesen
local.identifier.volume277en
local.contributor.lastnameWrighten
local.contributor.lastnameMcDonalden
local.contributor.lastnameMarveldeen
local.contributor.lastnameKazemen
local.contributor.lastnameBishopen
dc.identifier.staffune-id:pmcdon21en
local.profile.orcid0000-0002-9541-3304en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:7443en
dc.identifier.academiclevelAcademicen
local.title.maintitleHelping effort increases with relatedness in bell miners, but 'unrelated' helpers of both sexes still provide substantial careen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorWright, Jonathanen
local.search.authorMcDonald, Paulen
local.search.authorMarvelde, Luc teen
local.search.authorKazem, Anahita J Nen
local.search.authorBishop, Charles Men
local.uneassociationUnknownen
local.year.published2010en
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