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Independent transitions between monsoonal and arid biomes revealed by systematic revison of a complex of Australian geckos (Diplodactylus; Diplodactylidae)

Oliver, Paul M.; Couper, Patrick J.; Pepper, Mitzy

Description

How the widespread expansion and intensification of aridity through the Neogene has shaped the Austral biota is a major question in Antipodean biogeography. Lineages distributed across wide aridity gradients provide opportunities to examine the timing, frequency, and direction of transitions between arid and mesic regions. Here, we use molecular genetics and morphological data to investigate the systematics and biogeography of a nominal Australian gecko species (Diplodactylus conspicillatus...[Show more]

dc.contributor.authorOliver, Paul M.
dc.contributor.authorCouper, Patrick J.
dc.contributor.authorPepper, Mitzy
dc.date.accessioned2015-11-02T01:02:00Z
dc.date.available2015-11-02T01:02:00Z
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/1885/16200
dc.description.abstractHow the widespread expansion and intensification of aridity through the Neogene has shaped the Austral biota is a major question in Antipodean biogeography. Lineages distributed across wide aridity gradients provide opportunities to examine the timing, frequency, and direction of transitions between arid and mesic regions. Here, we use molecular genetics and morphological data to investigate the systematics and biogeography of a nominal Australian gecko species (Diplodactylus conspicillatus sensu lato) with a wide distribution spanning most of the Australian Arid Zone (AAZ) and Monsoonal Tropics (AMT). Our data support a minimum of seven genetically distinct and morphologically diagnosable taxa; we thus redefine the type species, ressurrect three names from synonymy, and describe three new species. Our inferred phylogeny suggests the history and diversification of lineages in the AAZ and AMT are intimately linked, with evidence of multiple independent interchanges since the late Miocene. However, despite this shared history, related lineages in these two regions also show evidence of broadly contrasting intra-regional responses to aridification; vicarance and speciation in older and increasingly attenuated mesic regions, versus a more dynamic history including independent colonisations and recent range expansions in the younger AAZ.
dc.description.sponsorshipThis work was supported by Mckenzie Postdoctoral Fellowship at the University of Melbourne to Paul Oliver, an Australian Research Council linage Grant to Paul Oliver, Mike Lee and Paul Doughty, an Australian Biological Resources Survey Grant to Mark Hutchinson, Mark Adams, Paul Oliver and Paul Doughty, and the Queensland Museum. MP9s contributions were supported by an Australian Research Council grant to J. Scott Keogh.
dc.format53 pages
dc.publisherPublic Library of Science
dc.rights© 2014 Oliver et al. This is an openaccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.sourcePLoS ONE
dc.subjectAustralian gecko species (Diplodactylus conspicillatus sensu lato)
dc.subjectAustralian Arid Zone (AAZ)
dc.subjectMonsoonal Tropics (AMT)
dc.subjectmolecular genetics
dc.subjectmorphological data
dc.titleIndependent transitions between monsoonal and arid biomes revealed by systematic revison of a complex of Australian geckos (Diplodactylus; Diplodactylidae)
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume9
dcterms.dateAccepted2014-09-05
dc.date.issued2014-12-10
local.identifier.absfor060302
local.identifier.ariespublicationU3488905xPUB5089
local.publisher.urlhttps://www.plos.org/
local.type.statusPublished Version
local.contributor.affiliationOliver, Paul, College of Medicine, Biology and Environment, CMBE Research School of Biology, Division of Evolution, Ecology & Genetics, The Australian National University
local.contributor.affiliationCouper, Patrick J., Queensland Museum, Australia
local.contributor.affiliationPepper, Mitzy, College of Medicine, Biology and Environment, CMBE Research School of Biology, Division of Evolution, Ecology & Genetics, The Australian National University
local.identifier.essn1932-6203
local.bibliographicCitation.issue12
local.bibliographicCitation.startpagee111895
local.identifier.doi10.1371/journal.pone.0111895
local.identifier.absseo960811
dc.date.updated2015-12-11T09:23:08Z
local.identifier.scopusID2-s2.0-84916910208
local.identifier.thomsonID000346611400006
CollectionsANU Research Publications

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