Patterns of persistence and isolation indicate resilience to climate change in montane rainforest lizards

Simple item page
dc.contributor.authorBell, Rayna C.
dc.contributor.authorParra, Juan L.
dc.contributor.authorTonione, M.
dc.contributor.authorHoskin, Conrad
dc.contributor.authorMacKenzie, Jacob B.
dc.contributor.authorWilliams, Stephen E.
dc.contributor.authorMoritz, Craig
dc.date.accessioned2015-12-10T23:03:03Z
dc.date.issued2010
dc.date.updated2016-02-24T12:07:30Z
dc.description.abstractGlobally, montane tropical diversity is characterized by extraordinary local endemism that is not readily explained by current environmental variables indicating a strong imprint of history. Montane species often exist as isolated populations under current climatic conditions and may have remained isolated throughout recent climatic cycles, leading to substantial genetic and phenotypic divergence. Alternatively, populations may have become contiguous during colder climates resulting in less divergence. Here we compare responses to historical climate fluctuation in a montane specialist skink, Lampropholis robertsi, and its more broadly distributed congener, L. coggeri, both endemic to rainforests of northeast Australia. To do so, we combine spatial modelling of potential distributions under representative palaeoclimates, multi-locus phylogeography and analyses of phenotypic variation. Spatial modelling of L. robertsi predicts strong isolation among disjunct montane refugia during warm climates, but with potential for localized exchange during the most recent glacial period. In contrast, predicted stable areas are more widespread and connected in L. coggeri. Both species exhibit pronounced phylogeographic structuring for mitochondrial and nuclear genes, attesting to low dispersal and high persistence across multiple isolated regions. This is most prominent in L. robertsi, for which coalescent analyses indicate that most populations persisted in isolation throughout the climate cycles of the Pleistocene. Morphological divergence, principally in body size, is more evident among isolated populations of L. robertsi than L. coggeri. These results highlight the biodiversity value of isolated montane populations and support the general hypothesis that tropical montane regions harbour high levels of narrow-range taxa because of their resilience to past climate change.
dc.identifier.issn0962-1083
dc.identifier.urihttp://hdl.handle.net/1885/62006
dc.publisherBlackwell Publishing Ltd
dc.sourceMolecular Ecology
dc.subjectKeywords: mitochondrial DNA; animal; article; Australia; biological model; cell nucleus; classification; climate change; DNA sequence; genetic variability; genetics; geography; lizard; phylogeny; Animals; Australia; Cell Nucleus; Climate Change; DNA, Mitochondrial; Lampropholis; Lineage divergence; Montane tropical diversity; Pleistocene refugia
dc.titlePatterns of persistence and isolation indicate resilience to climate change in montane rainforest lizards
dc.typeJournal article
local.bibliographicCitation.issue12
local.bibliographicCitation.lastpage2544
local.bibliographicCitation.startpage2531
local.contributor.affiliationBell, Rayna C., University of California
local.contributor.affiliationParra, Juan L., State University New York
local.contributor.affiliationTonione, M., University of California
local.contributor.affiliationHoskin, Conrad, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationMacKenzie, Jacob B., University of California
local.contributor.affiliationWilliams, Stephen E., James Cook University
local.contributor.affiliationMoritz, Craig, University of California
local.contributor.authoremailrepository.admin@anu.edu.au
local.contributor.authoruidHoskin, Conrad, u4463788
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor050101 - Ecological Impacts of Climate Change
local.identifier.absfor060306 - Evolutionary Impacts of Climate Change
local.identifier.absfor060302 - Biogeography and Phylogeography
local.identifier.absseo960307 - Effects of Climate Change and Variability on Australia (excl. Social Impacts)
local.identifier.absseo970106 - Expanding Knowledge in the Biological Sciences
local.identifier.ariespublicationu9511635xPUB658
local.identifier.ariespublicationu9511635xPUB1292
local.identifier.citationvolume19
local.identifier.doi10.1111/j.1365-294X.2010.04676.x
local.identifier.scopusID2-s2.0-77953504476
local.identifier.uidSubmittedByu9511635
local.type.statusPublished Version

Downloads

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
01_Bell_Patterns_of_persistence_and_2010.pdf
Size:
779.62 KB
Format:
Adobe Portable Document Format
Download

Collections

ANU Research Publications

DSpace software copyright © 2002-2024 LYRASIS