Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/2884
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dc.contributor.authorBarker, J Stuart Fen
dc.contributor.authorKrebbs, Robert Aen
dc.contributor.authorDavies, Hylton Ianen
dc.date.accessioned2009-11-05T11:42:00Z
dc.date.issued2005en
dc.identifier.citationAustral Ecology, 30(5), p. 546-557en
dc.identifier.issn1442-9985en
dc.identifier.urihttps://hdl.handle.net/1959.11/2884en
dc.description.abstractClimatic data and collection records for the 'cactophilic Drosophila aldrichi' and 'Drosophila buzzatii' for 97 localities were used to examine the effects of geographical location, season, host plant species and climatic factors on their range and relative abundance. Temporal variation in relative abundance was assessed from monthly collections over 4 years at one locality. Effects of weather variables over the 28 days before each collection were examined. A generalized linear model of the spatial data showed significant geographical variation in relative abundance, and significant climatic effects, with the proportion of 'D. aldrichi' higher in the warm season, and increasing as temperature variation decreased and moisture indices increased. The temporal data gave generally concordant results, as D. aldrichi proportion was higher in summer and autumn, and increased as maximum and minimum temperatures increased, and as variation in maximum temperature decreased. In a laboratory competition experiment, 'D. aldrichi' eliminated 'D. buzzatii' at 31°C, but was itself eliminated at 18°C and 25°C. The range of 'D. buzzatii' is constrained only by availability of its host plant, Opuntia species, although its relative abundance is reduced in the northern part of its distribution. The range of 'D. aldrichi', from central Queensland to northern NSW, Australia, is entirely within that of 'D. buzzatii', and its relative abundance decreases from north to south. Both climate and weather, particularly temperature variability, have direct effects on the relative abundances of the two species, and both likely act indirectly by influencing the outcome of interspecific competition.en
dc.languageenen
dc.publisherBlackwell Publishingen
dc.relation.ispartofAustral Ecologyen
dc.titleGeographical distributions, relative abundance and coexistence of 'Drosophila aldrichi' and 'Drosophila buzzatii' in Australiaen
dc.typeJournal Articleen
dc.identifier.doi10.1111/j.1442-9993.2005.01470.xen
dc.subject.keywordsPopulation, Ecological and Evolutionary Geneticsen
local.contributor.firstnameJ Stuart Fen
local.contributor.firstnameRobert Aen
local.contributor.firstnameHylton Ianen
local.subject.for2008060411 Population, Ecological and Evolutionary Geneticsen
local.subject.seo2008970106 Expanding Knowledge in the Biological Sciencesen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Science and Technologyen
local.profile.emailsbarker@une.edu.auen
local.profile.emailidavies@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:2851en
local.publisher.placeCarlton, Australiaen
local.format.startpage546en
local.format.endpage557en
local.peerreviewedYesen
local.identifier.volume30en
local.identifier.issue5en
local.contributor.lastnameBarkeren
local.contributor.lastnameKrebbsen
local.contributor.lastnameDaviesen
dc.identifier.staffune-id:sbarkeren
dc.identifier.staffune-id:idaviesen
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:2962en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleGeographical distributions, relative abundance and coexistence of 'Drosophila aldrichi' and 'Drosophila buzzatii' in Australiaen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 64<br />Views: 65<br />Downloads: 0en
local.search.authorBarker, J Stuart Fen
local.search.authorKrebbs, Robert Aen
local.search.authorDavies, Hylton Ianen
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