Arid
DOI10.1007/s10592-013-0504-9
Uncovering cryptic evolutionary diversity in extant and extinct populations of the southern Australian arid zone Western and Thick-billed Grasswrens (Passeriformes: Maluridae: Amytornis)
Austin, Jeremy J.1,2; Joseph, Leo3; Pedler, Lynn P.; Black, Andrew B.4
通讯作者Austin, Jeremy J.
来源期刊CONSERVATION GENETICS
ISSN1566-0621
EISSN1572-9737
出版年2013
卷号14期号:6页码:1173-1184
英文摘要

The Western and Thick-billed Grasswrens (Aves: Passeriformes: Maluridae: Amytornis textilis and Amytornis modestus, respectively) exemplify issues surrounding the evolution, biogeography and conservation of Australia’s arid and semi-arid zone fauna. The two species together have historically occurred across much of southern Australia. They showed high intraspecific taxonomic diversity and short range endemism but suffered high rates of recent anthropogenic extinction. Of 11 named and 1 un-named subspecies, 5 are extinct and 3 are vulnerable or critically endangered. To clarify taxonomic issues, and to understand their pre-extinction phylogeography and identify extant populations and taxa of conservation value, we sequenced similar to 1,000 bp of the mtDNA ND2 gene from all extant populations and all but one extinct population. We confirmed reciprocal monophyly of A. modestus and A. textilis and identified strong phylogeographic structure associated with morphological divergence within each species. Populations of A. t. myall at the western edge of their range in South Australia may preserve "ghost" lineages of extinct subspecies from Western Australia as a result of ancient gene flow. Our results support recent taxonomic revisions, and highlight the critical importance of including samples of extirpated populations and extinct species to fully understand and interpret extant diversity. Conservation and management plans should recognise and seek to preserve the unique evolutionary diversity present in surviving populations.


英文关键词Amytornis grasswren Australian arid zone phylogeography Extinction biogeography
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000326632600006
WOS关键词MITOCHONDRIAL-DNA ; GENE FLOW ; MACROPUS-FULIGINOSUS ; AVES-MALURIDAE ; HISTORY ; PHYLOGEOGRAPHY ; BIRDS ; BIOGEOGRAPHY ; SPECIATION ; RESOLUTION
WOS类目Biodiversity Conservation ; Genetics & Heredity
WOS研究方向Biodiversity & Conservation ; Genetics & Heredity
来源机构Commonwealth Scientific and Industrial Research Organisation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/176519
作者单位1.Univ Adelaide, Sch Earth & Environm Sci, Australian Ctr Ancient DNA, Adelaide, SA 5005, Australia;
2.Museum Victoria, Dept Sci, Melbourne, Vic 3001, Australia;
3.CSIRO Ecosyst Sci, Australian Natl Wildlife Collect, Canberra, ACT 2601, Australia;
4.S Australian Museum, Ornithol Sect, Adelaide, SA 5000, Australia
推荐引用方式
GB/T 7714
Austin, Jeremy J.,Joseph, Leo,Pedler, Lynn P.,et al. Uncovering cryptic evolutionary diversity in extant and extinct populations of the southern Australian arid zone Western and Thick-billed Grasswrens (Passeriformes: Maluridae: Amytornis)[J]. Commonwealth Scientific and Industrial Research Organisation,2013,14(6):1173-1184.
APA Austin, Jeremy J.,Joseph, Leo,Pedler, Lynn P.,&Black, Andrew B..(2013).Uncovering cryptic evolutionary diversity in extant and extinct populations of the southern Australian arid zone Western and Thick-billed Grasswrens (Passeriformes: Maluridae: Amytornis).CONSERVATION GENETICS,14(6),1173-1184.
MLA Austin, Jeremy J.,et al."Uncovering cryptic evolutionary diversity in extant and extinct populations of the southern Australian arid zone Western and Thick-billed Grasswrens (Passeriformes: Maluridae: Amytornis)".CONSERVATION GENETICS 14.6(2013):1173-1184.
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