Integrating Fitness Components Reveals That Survival Costs Outweigh Other Benefits and Costs of Group Living in Two Closely Related Species
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Brouwer, Lyanne; Cockburn, Andrew; van de Pol, Martijn
Description
Group living can be beneficial when individuals reproduce or survive better in the presence of others, but, simultaneously, there might be costs due to competition for resources. Positive and negative effects on various fitness components might thus counteract each other, so integration is essential to determine their overall effect. Here, we investigated how an integrated fitness measure (reproductive values [RVs]) based on six fitness components varied with group size among group members in...[Show more]
dc.contributor.author | Brouwer, Lyanne | |
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dc.contributor.author | Cockburn, Andrew | |
dc.contributor.author | van de Pol, Martijn | |
dc.date.accessioned | 2020-09-11T03:32:17Z | |
dc.identifier.issn | 0003-0147 | |
dc.identifier.uri | http://hdl.handle.net/1885/209978 | |
dc.description.abstract | Group living can be beneficial when individuals reproduce or survive better in the presence of others, but, simultaneously, there might be costs due to competition for resources. Positive and negative effects on various fitness components might thus counteract each other, so integration is essential to determine their overall effect. Here, we investigated how an integrated fitness measure (reproductive values [RVs]) based on six fitness components varied with group size among group members in cooperatively breeding red-winged and superb fairy wrens (Malurus elegans and Malurus cyaneus, respectively). Despite life-history differences between the species, patterns of RVs were similar, suggesting that the same behavioral mechanisms are important. Group living reduced RVs for dominant males, but for other group members, this was true only in large groups. Decomposition analyses showed that our integrated fitness proxy was most strongly affected by group size effects on survival and was amplified through carryover effects between years. Our study shows that integrative consideration of fitness components and subsequent decomposition analysis provide much needed insights into the key behavioral mechanisms shaping the costs and benefits of group living. Such attribution is crucial if we are to synthesize the relative importance of the myriad group size costs and benefits currently reported in the literature. | |
dc.description.sponsorship | Work was supported by a Rubicon fellowship of the Netherlands Organisation for Scientific Research (NWO825.08.003) awarded to L.B. and by fellowships and grants from the Australian Research Council awarded to L.B. (DE130100174), A.C. (DP0451018, DP1092565), and M.v.d.P. (FT120100204). | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_AU | |
dc.publisher | University of Chicago Press | |
dc.rights | © 2020 by The University of Chicago | |
dc.source | The American Naturalist | |
dc.title | Integrating Fitness Components Reveals That Survival Costs Outweigh Other Benefits and Costs of Group Living in Two Closely Related Species | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 195 | |
dc.date.issued | 2020-02-28 | |
local.identifier.absfor | 060201 - Behavioural Ecology | |
local.identifier.ariespublication | u9511635xPUB2016 | |
local.publisher.url | http://www.press.uchicago.edu/ucp/journals/journal/an.html | |
local.type.status | Published Version | |
local.contributor.affiliation | Brouwer, Lyanne, College of Science, ANU | |
local.contributor.affiliation | Cockburn, Andrew, College of Science, ANU | |
local.contributor.affiliation | van de Pol, Martijn, Netherlands Institute of Ecology (NIOO-KNAW) | |
dc.relation | http://purl.org/au-research/grants/arc/DE130100174 | |
dc.relation | http://purl.org/au-research/grants/arc/DP0451018 | |
dc.relation | http://purl.org/au-research/grants/arc/DP1092565 | |
dc.relation | http://purl.org/au-research/grants/arc/FT120100204 | |
local.bibliographicCitation.issue | 2 | |
local.bibliographicCitation.startpage | 201 | |
local.bibliographicCitation.lastpage | 215 | |
local.identifier.doi | 10.1086/706475 | |
local.identifier.absseo | 970106 - Expanding Knowledge in the Biological Sciences | |
dc.date.updated | 2020-06-07T08:20:50Z | |
local.identifier.scopusID | 2-s2.0-85077910092 | |
dcterms.accessRights | Open Access | |
dc.provenance | https://v2.sherpa.ac.uk/id/publication/14504..."The published version can be archived in a Non-Commercial Institutional Repository. 12 months embargo" from SHERPA/RoMEO site (as at 11/09/2020). | |
Collections | ANU Research Publications |
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