Diversification patterns of pebble-mimic dragons are consistent with historical disruption of important habitat corridors in and Australia

Shoo, L. P., Rose, R., Doughty, P., Austin, J. J. and Melville, J. (2008) Diversification patterns of pebble-mimic dragons are consistent with historical disruption of important habitat corridors in and Australia. Molecular Phylogenetics and Evolution, 48 2: 528-542. doi:10.1016/j.ympev.2008.03.022


Author Shoo, L. P.
Rose, R.
Doughty, P.
Austin, J. J.
Melville, J.
Title Diversification patterns of pebble-mimic dragons are consistent with historical disruption of important habitat corridors in and Australia
Journal name Molecular Phylogenetics and Evolution   Check publisher's open access policy
ISSN 1055-7903
1095-9513
Publication date 2008-08
Sub-type Article (original research)
DOI 10.1016/j.ympev.2008.03.022
Volume 48
Issue 2
Start page 528
End page 542
Total pages 15
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Formatted abstract
The pebble-mimic dragon lineage of Tympanocryptis is widely distributed in the stony, or ‘gibber’, deserts of Australia but is noticeably absent from intersecting areas of sand deserts. Past fluctuations in the extent and configuration of sandy desert habitat barriers are likely to have been an import factor promoting genetic differentiation in this group. We sequenced a ∼1400 bp region of mitochondrial DNA and a ∼1400 bp nuclear gene (RAG-1) to investigate phylogeographic structuring of species of pebble-mimic dragons. Our topology indicates an early split in this lineage between eastern and western parts of the arid zone that probably dates to the mid-Miocene. This split corresponds directly with large expanses of contemporary sandy habitat in the form of Great Sandy and Great Victoria Deserts. Our data indicate that this biogeographic barrier established very early on in the development of the arid zone and has persisted to present. Additional genetic structuring in the absence of recognized barriers suggests that an expanded view of potential habitat barriers in the arid zone is required.
Keyword agamidae
deserts
historical biogeography
molecular systematics
phylogeography
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
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