Interference from long-tailed finches constrains reproduction in the endangered Gouldian finch

dc.contributor.authorBrazill-Boast, James
dc.contributor.authorvan Rooij, Erica
dc.contributor.authorPryke, Sarah
dc.contributor.authorGriffith, Simon C.
dc.date.accessioned2015-12-13T22:41:15Z
dc.date.issued2011
dc.date.updated2016-02-24T09:32:51Z
dc.description.abstractInterspecific interference competition for nest-sites among cavity-nesting birds can have important effects on reproductive fitness and the distribution of competing species. We observed interference at nest-sites in free-living populations of the endangered Gouldian finch (Erythrura gouldiae) and sympatric long-tailed finch (Poephila acuticauda), and also experimentally tested the relative strength and effect of interference at nest-sites in captive populations. Levels of competitive interference at nest-sites in the wild were high for Gouldian, but not long-tailed finches, and interference frequency was inversely related to Gouldian finch reproductive success. High levels of interference conferred reduced fledging success but did not affect offspring condition. Captive experiments corroborated the field data, also demonstrating fitness costs of interspecific competition, and that long-tailed finches dominated resources under standardized conditions. Such asymmetrical competition dynamics are likely to constrain reproduction in Gouldian finch populations, potentially affecting recruitment and hindering the recovery of remaining populations of this endangered species.
dc.identifier.issn0021-8790
dc.identifier.urihttp://hdl.handle.net/1885/78433
dc.publisherBritish Ecological Society
dc.sourceJournal of Animal Ecology
dc.subjectKeywords: cavity; endangered species; fitness; interspecific competition; nest site; passerine; recruitment (population dynamics); reproductive success; animal; article; competitive behavior; ecosystem; endangered species; female; finch; male; physiology; reproduct Cavity-nester; Erythrura gouldiae; Heterospecific aggression; Interspecific competition; Poephila acuticauda
dc.titleInterference from long-tailed finches constrains reproduction in the endangered Gouldian finch
dc.typeJournal article
local.bibliographicCitation.issue1
local.bibliographicCitation.lastpage48
local.bibliographicCitation.startpage39
local.contributor.affiliationBrazill-Boast, James, Macquarie University
local.contributor.affiliationvan Rooij, Erica, Macquarie University
local.contributor.affiliationPryke, Sarah, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationGriffith, Simon C., Macquarie University
local.contributor.authoremailu5083605@anu.edu.au
local.contributor.authoruidPryke, Sarah, u5083605
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor060201 - Behavioural Ecology
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
local.identifier.ariespublicationf5625xPUB7080
local.identifier.citationvolume80
local.identifier.doi10.1111/j.1365-2656.2010.01756.x
local.identifier.scopusID2-s2.0-78649996841
local.identifier.thomsonID000285110600004
local.identifier.uidSubmittedByf5625
local.type.statusPublished Version

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