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dc.contributor.authorMcCallum, H
dc.contributor.authorKikkawa, J
dc.contributor.authorCatterall, C
dc.date.accessioned2017-05-03T13:46:00Z
dc.date.available2017-05-03T13:46:00Z
dc.date.issued2000
dc.date.modified2007-03-13T21:52:23Z
dc.identifier.issn1461-023X
dc.identifier.doi10.1046/j.1461-0248.2000.00120.x
dc.identifier.urihttp://hdl.handle.net/10072/3203
dc.description.abstractThe population of silvereyes Zosterops lateralis chlorocephalus, on Heron Island, Great Barrier Reef has been monitored accurately since 1965. Between 1979 and 1993, the breeding success of all birds was determined by monitoring nests. The population fluctuated between 225 and 483 individuals. Four cyclones led to substantial mortality. As this data set is long-term, has little observation error, and is from an effectively closed population, it provides an unusual opportunity to examine density dependence in reproduction or mortality. Using a stochastic logistic model, we found clear evidence of density dependence in adult population size. Logistic regression suggested that fledgling survival decreased with the numbers of birds attempting to breed. There was also some suggestion that adult survival might be density dependent. The fitted stochastic logistic model predicts negligible risks of extinction for this population, in contrast to the predictions of a published population viability analysis. Whilst our statistical model including density dependence may provide better predictions of the "usual" behaviour of a population than a population viability analysis, we suggest that caution should be exercised when statistically fitted models are used to predict the behaviour of the population at extremes, such as near extinction.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherBlackwell Science
dc.publisher.placeUK
dc.publisher.urihttp://www.blackwell-synergy.com/doi/full/10.1046/j.1461-0248.2000.00120.x
dc.relation.ispartofpagefrom95
dc.relation.ispartofpageto100
dc.relation.ispartofjournalEcology Letters
dc.relation.ispartofvolume3
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchEvolutionary biology
dc.subject.fieldofresearchHistory, heritage and archaeology
dc.subject.fieldofresearchEcological applications
dc.subject.fieldofresearchEnvironmental management
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode3104
dc.subject.fieldofresearchcode43
dc.subject.fieldofresearchcode4102
dc.subject.fieldofresearchcode4104
dc.titleDensity dependance in an island population of silvereyes
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2000 Blackwell Publishing. The definitive version is available at [www.blackwell-synergy.com.]
gro.date.issued2000
gro.hasfulltextNo Full Text
gro.griffith.authorCatterall, Carla P.
gro.griffith.authorMcCallum, Hamish


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