Arid
DOI10.1111/j.1365-294X.2008.03899.x
Birth of a biome: insights into the assembly and maintenance of the Australian arid zone biota
Byrne, M.1; Yeates, D. K.2; Joseph, L.3; Kearney, M.4; Bowler, J.5; Williams, M. A. J.; Cooper, S.6,7; Donnellan, S. C.6,7; Keogh, J. S.8; Leys, R.6,7; Melville, J.9; Murphy, D. J.10; Porch, N.11; Wyrwoll, K-H.12
通讯作者Byrne, M.
来源期刊MOLECULAR ECOLOGY
ISSN0962-1083
EISSN1365-294X
出版年2008
卷号17期号:20页码:4398-4417
英文摘要

The integration of phylogenetics, phylogeography and palaeoenvironmental studies is providing major insights into the historical forces that have shaped the Earth’s biomes. Yet our present view is biased towards arctic and temperate/tropical forest regions, with very little focus on the extensive arid regions of the planet. The Australian arid zone is one of the largest desert landform systems in the world, with a unique, diverse and relatively well-studied biota. With foci on palaeoenvironmental and molecular data, we here review what is known about the assembly and maintenance of this biome in the context of its physical history, and in comparison with other mesic biomes. Aridification of Australia began in the Mid-Miocene, around 15 million years, but fully arid landforms in central Australia appeared much later, around 1-4 million years. Dated molecular phylogenies of diverse taxa show the deepest divergences of arid-adapted taxa from the Mid-Miocene, consistent with the onset of desiccation. There is evidence of arid-adapted taxa evolving from mesic-adapted ancestors, and also of speciation within the arid zone. There is no evidence for an increase in speciation rate during the Pleistocene, and most arid-zone species lineages date to the Pliocene or earlier. The last 0.8 million years have seen major fluctuations of the arid zone, with large areas covered by mobile sand dunes during glacial maxima. Some large, vagile taxa show patterns of recent expansion and migration throughout the arid zone, in parallel with the ice sheet-imposed range shifts in Northern Hemisphere taxa. Yet other taxa show high lineage diversity and strong phylogeographical structure, indicating persistence in multiple localised refugia over several glacial maxima. Similar to the Northern Hemisphere, Pleistocene range shifts have produced suture zones, creating the opportunity for diversification and speciation through hybridisation, polyploidy and parthenogenesis. This review highlights the opportunities that development of arid conditions provides for rapid and diverse evolutionary radiations, and re-enforces the emerging view that Pleistocene environmental change can have diverse impacts on genetic structure and diversity in different biomes. There is a clear need for more detailed and targeted phylogeographical studies of Australia’s arid biota and we suggest a framework and a set of a priori hypotheses by which to proceed.


英文关键词arid biota Australia diversity palaeoclimate phylogeny phylogeography
类型Review
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000259953500002
WOS关键词MITOCHONDRIAL-DNA PHYLOGEOGRAPHY ; ACACIA SUBGENUS PHYLLODINEAE ; EGERNIA-WHITII LACERTILIA ; SCINCIDAE SPECIES GROUP ; TROPICS RAIN-FOREST ; MOLECULAR PHYLOGENY ; WESTERN-AUSTRALIA ; SOUTHEASTERN AUSTRALIA ; WET TROPICS ; EASTERN AUSTRALIA
WOS类目Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS研究方向Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
来源机构Commonwealth Scientific and Industrial Research Organisation ; University of Western Australia
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/158588
作者单位1.Dept Environm & Conservat, Div Sci, Bentley, WA 6983, Australia;
2.CSIRO Entomol, Australian Natl Insect Collect, Canberra, ACT 2601, Australia;
3.CSIRO Sustainable Ecosyst, Australian Natl Wildlife Collect, Canberra, ACT 2601, Australia;
4.Univ Melbourne, Dept Zool, Melbourne, Vic 3010, Australia;
5.Univ Melbourne, Sch Earth Sci, Parkville, Vic 3010, Australia;
6.S Australian Museum, Evolutionary Biol Unit, Adelaide, SA 5000, Australia;
7.Univ Adelaide, Australian Ctr Evolutionary Biol & Biodivers, Adelaide, SA 5005, Australia;
8.Australian Natl Univ, Sch Bot & Zool, Canberra, ACT 2617, Australia;
9.Museum Victoria, Melbourne, Vic 3001, Australia;
10.Royal Bot Gardens Melbourne, Natl Herbarium Victoria, S Yarra, Vic 3141, Australia;
11.Australian Natl Univ, Canberra, ACT 2617, Australia;
12.Univ Western Australia, Sch Earth & Geol Sci, Crawley, WA 6009, Australia
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GB/T 7714
Byrne, M.,Yeates, D. K.,Joseph, L.,et al. Birth of a biome: insights into the assembly and maintenance of the Australian arid zone biota[J]. Commonwealth Scientific and Industrial Research Organisation, University of Western Australia,2008,17(20):4398-4417.
APA Byrne, M..,Yeates, D. K..,Joseph, L..,Kearney, M..,Bowler, J..,...&Wyrwoll, K-H..(2008).Birth of a biome: insights into the assembly and maintenance of the Australian arid zone biota.MOLECULAR ECOLOGY,17(20),4398-4417.
MLA Byrne, M.,et al."Birth of a biome: insights into the assembly and maintenance of the Australian arid zone biota".MOLECULAR ECOLOGY 17.20(2008):4398-4417.
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