Peter Kovalik
Well-known member
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Maluridae (1 Viewer)
- Thread starter Richard Klim
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Richard Klim
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Striated Grasswren
www.worldbirdnames.org/updates/update-diary/
www.worldbirdnames.org/updates/proposed-splits/
IOC World Bird List...
www.worldbirdnames.org/updates/update-diary/
www.worldbirdnames.org/updates/proposed-splits/
Rowley & Russell 2007 (HBW 12).
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Richard Klim
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Striated Grasswren
IOC World Bird List...
www.worldbirdnames.org/updates/update-diary/
www.worldbirdnames.org/updates/proposed-splits/
IOC World Bird List...
www.worldbirdnames.org/updates/update-diary/
www.worldbirdnames.org/updates/proposed-splits/
Richard Klim
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Daniel Philippe
Well-known member
Richard Klim
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Thick-billed Grasswren
indulkanna, raglessi, curnamona and obscurior are recognised as valid subspecies by IOC; but not by H&M4 or eBird/Clements.
Black 2016. Reappraisal of plumage and morphometric diversity in Thick-billed Grasswren Amytornis modestus (North, 1902), with description of a new subspecies. Bull BOC 136(1): 58–68.
Amytornis (textilis) modestus is recognised as a distinct species by H&M4 and IOC; but not by Rowley & Russell 2007 (HBW 12), Christidis & Boles 2008, eBird/Clements or BirdLife.
indulkanna, raglessi, curnamona and obscurior are recognised as valid subspecies by IOC; but not by H&M4 or eBird/Clements.
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Richard Klim
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Peter Kovalik
Well-known member
McLean, A. (2013). Phylogenetics, Phylogeography and the Evolutionary History of the Chestnut-Shouldered Group of Fairy-Wrens (Malurus spp.).
[PDF]
Thanks Peter for the link, that PhD is really worth a read, the later chapters haven't been published yet and look to build a fairly solid case that Variegated Fairy-Wren should be split into two species. Not least from a rather large 4.3% mtDNA distance between adjacent taxa east and west of the Dividing Range (lamberti and assimilis), but also backed by nuclear genetics plus a fairly fine-grained study of introgression in the modest contact zone. This would be backed by phenotype especially the crown and mantle colour (sky blue vs violet blue), but also long tail and paler legs in lamberti.
So if split they would become:
M. lamberti (Vigors & Horsfield 1827) - monotypic
M. assimilis (North 1901) - incl rogersi, dulcis, and presumably bernieri (latter not sampled) - presumably would revert to the former name of Purple-backed Fairy-Wren.
Hopefully this will be formally published in due course.
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Peter Kovalik
Well-known member
John H. Boyd III: Tif Update:
Grasswrens: Pilbara Grasswren, Amytornis whitei, Sandhill Grasswren, Amytornis oweni, and Rusty Grasswren, Amytornis rowleyi, have been split from Striated Grasswren, Amytornis striatus, based on Christidis et al. (2013) (I only recently got a copy of the complete paper). The grasswrens have been rearranged based on Christidis et al. (2010).
Fred Ruhe
Well-known member
Peter Kovalik wrote:
Quote:
Originally Posted by Daniel Philippe View Post
Christidis, L., F. E. Rheindt, W. E. Boles & J. A. Norman, 2013. A re-appraisal of species diversity within the Australian grasswrens Amytornis (Aves: Maluridae). Austral. Zoologist 36 (4): in press
Abstract: The Australian grasswrens (Amytornis) comprise a genus of cryptically plumaged species inhabiting the arid regions of southern, western, central, and northern Australia. Isolated, fragmented populations characterise the distributional pattern of several species, whereas others appear to show ecophenotypic clinal variation in plumage patterns. These features have made the species-level taxonomy of the genus a matter of ongoing debate. We undertook qualitative considerations of morphological, biogeographical and ecological features in combination with quantitative DNA distance measures from published studies, to provide a comprehensive species level revision of Amytornis. In addition to the ten species recognised by Schodde and Mason (1999) (housei, textilis, goyderi, purnelli, ballarae, merrotsyi, woodwardi, dorotheae, striatus, barbatus), we also recognise as species the following: modestus, rowleyi, oweni and whitei. These fourteen species are placed into four subgenera: Amytornis, Magnamytis, Maluropsis and Cryptamytis subgen. nov. The latter subgenus is erected for A. merrotsyi. The potential impacts that this new taxonomy will have on the conservation status of the various taxa are canvassed.
Free pdf: http://publications.rzsnsw.org.au/doi/pdf/10.7882/AZ.2013.004
Enjoy,
Fred
Quote:
Originally Posted by Daniel Philippe View Post
Christidis, L., F. E. Rheindt, W. E. Boles & J. A. Norman, 2013. A re-appraisal of species diversity within the Australian grasswrens Amytornis (Aves: Maluridae). Austral. Zoologist 36 (4): in press
Abstract: The Australian grasswrens (Amytornis) comprise a genus of cryptically plumaged species inhabiting the arid regions of southern, western, central, and northern Australia. Isolated, fragmented populations characterise the distributional pattern of several species, whereas others appear to show ecophenotypic clinal variation in plumage patterns. These features have made the species-level taxonomy of the genus a matter of ongoing debate. We undertook qualitative considerations of morphological, biogeographical and ecological features in combination with quantitative DNA distance measures from published studies, to provide a comprehensive species level revision of Amytornis. In addition to the ten species recognised by Schodde and Mason (1999) (housei, textilis, goyderi, purnelli, ballarae, merrotsyi, woodwardi, dorotheae, striatus, barbatus), we also recognise as species the following: modestus, rowleyi, oweni and whitei. These fourteen species are placed into four subgenera: Amytornis, Magnamytis, Maluropsis and Cryptamytis subgen. nov. The latter subgenus is erected for A. merrotsyi. The potential impacts that this new taxonomy will have on the conservation status of the various taxa are canvassed.
Free pdf: http://publications.rzsnsw.org.au/doi/pdf/10.7882/AZ.2013.004
Enjoy,
Fred
The link was broken for me, but currently this seems to work: https://publications.csiro.au/rpr/download?pid=csiro:EP114834&dsid=DS14
This paper seems to pull back on some of the conclusions from the thesis that martin-WA referenced.
Niels
Jim LeNomenclatoriste
Je suis un mignon petit Traquet rubicole
Ahem, Amytornis merrotsyi is nested (or basal) into Amytornis striatus clade (according to Boyd), so Cryptamytis become a junior synomym of Magnamytis.
Niels my reading of this (since confirmed in correspondence) is that the published paper matches the earlier chapters of the thesis (Ch 3), but the detailed contact zone study (Ch 5) is still to be published - just waylaid as these things often are when a student graduates.
OR, in other words: now we make one paper, and once we have that published, the next paper will be the one really containing what we want to say.
In a way, I feel lucky that most of my papers were published before I defended my PhD, so I did not have to play that kind of games.
Niels
In a way, I feel lucky that most of my papers were published before I defended my PhD, so I did not have to play that kind of games.
Niels
l_raty
laurent raty
Medina, Delhey, Peters, Cain, Hall, Mulder, Langmore. 2017. Habitat structure is linked to the evolution of plumage colour in female, but not male, fairy-wrens. BMC Evol Biol 17:35.
[full paper]
[full paper]
Peter Kovalik
Well-known member
Malurus lamberti
Alison J. McLean, Alicia Toon, Daniel J. Schmidt, Jane M. Hughes & Leo Joseph. Phylogeography and geno-phenotypic discordance in a widespread Australian bird, the Variegated Fairy-wren, Malurus lamberti (Aves: Maluridae). Biol J Linn Soc blx004. DOI: https://doi.org/10.1093/biolinnean/blx004
Abstract:
The Variegated Fairy-wren Malurus lamberti as currently construed occurs across almost all of mainland Australia. If Pleistocene biogeographical barriers limited gene flow in this species, then geographical restriction of haplotypes should mirror those barriers. We used phylogeographic analyses of one mitochondrial and eight nuclear DNA markers to reconstruct the bird’s history, especially for its arid and tropical populations. Robustly supported phylogeographic structure between M. l. lamberti of central eastern Australia and all other populations suggests vicariance by the Great Dividing Range of eastern Australia; time to their most recent common ancestor origin traces to approximately 148 000 years ago (Kya; 95% highest posterior density interval 62–312). Estimates of divergence time for populations of M. l. assimilis east and west of the central southern Australian Eyrean Barrier converged at 86 Kya (45–133), the youngest estimated divergence being between two tropical taxa (14 Kya, 0–30). Taxonomic implications of our data question the current circumscription of M. lamberti, but support taxonomic recognition of structuring east and west of the Eyrean Barrier within what is currently M. l. assimilis. Genetic diversity in two tropical taxa is incompletely sorted or at early stages of divergence with gene flow.
Alison J. McLean, Alicia Toon, Daniel J. Schmidt, Jane M. Hughes & Leo Joseph. Phylogeography and geno-phenotypic discordance in a widespread Australian bird, the Variegated Fairy-wren, Malurus lamberti (Aves: Maluridae). Biol J Linn Soc blx004. DOI: https://doi.org/10.1093/biolinnean/blx004
Abstract:
The Variegated Fairy-wren Malurus lamberti as currently construed occurs across almost all of mainland Australia. If Pleistocene biogeographical barriers limited gene flow in this species, then geographical restriction of haplotypes should mirror those barriers. We used phylogeographic analyses of one mitochondrial and eight nuclear DNA markers to reconstruct the bird’s history, especially for its arid and tropical populations. Robustly supported phylogeographic structure between M. l. lamberti of central eastern Australia and all other populations suggests vicariance by the Great Dividing Range of eastern Australia; time to their most recent common ancestor origin traces to approximately 148 000 years ago (Kya; 95% highest posterior density interval 62–312). Estimates of divergence time for populations of M. l. assimilis east and west of the central southern Australian Eyrean Barrier converged at 86 Kya (45–133), the youngest estimated divergence being between two tropical taxa (14 Kya, 0–30). Taxonomic implications of our data question the current circumscription of M. lamberti, but support taxonomic recognition of structuring east and west of the Eyrean Barrier within what is currently M. l. assimilis. Genetic diversity in two tropical taxa is incompletely sorted or at early stages of divergence with gene flow.
Peter Kovalik
Well-known member
Amytornis modestus
Amy L. Slender, Marina Louter, Michael G. Gardner & Sonia Kleindorfer. Patterns of morphological and mitochondrial diversity in parapatric subspecies of the Thick-billed Grasswren (Amytornis modestus). Emu - Austral Ornithology Vol. 0 , Iss. 0,0, Published online: 18 Apr 2017.
Abstract:
Divergence is the first phase of speciation and is commonly thought to occur more readily in allopatric populations. Subspecies are populations that are divergent but generally retain the capacity to interbreed should they come into contact. Two subspecies of the Thick-billed Grasswren (Amytornis modestus) are divergent by 1.7% at the mitochondrial ND2 gene and were previously considered to be allopatric. In this study, we discovered that the subspecies were parapatric. We use a larger sample size than previous studies to examine variation in morphology and mitochondrial haplotype across the distribution of each subspecies and within the region of parapatry. The subspecies occurring to the west, Amytornis modestus indulkanna, had larger body size and longer and narrower bill than the subspecies occurring to the east, A. m. raglessi. Within the region of parapatry, females were morphologically similar to A. m. indulkanna but had eastern mitochondrial haplotypes while males had intermediate morphology and either eastern or western haplotypes. Additionally, haplotypes from the western mitochondrial clade were found in A. m. raglessi. These patterns of morphology and mitochondrial diversity reveal discordance within the region of parapatry and to the east. We suggest that the subspecies have undergone asymmetric expansion from west to east, made secondary contact, and are currently hybridising.
Amy L. Slender, Marina Louter, Michael G. Gardner & Sonia Kleindorfer. Patterns of morphological and mitochondrial diversity in parapatric subspecies of the Thick-billed Grasswren (Amytornis modestus). Emu - Austral Ornithology Vol. 0 , Iss. 0,0, Published online: 18 Apr 2017.
Abstract:
Divergence is the first phase of speciation and is commonly thought to occur more readily in allopatric populations. Subspecies are populations that are divergent but generally retain the capacity to interbreed should they come into contact. Two subspecies of the Thick-billed Grasswren (Amytornis modestus) are divergent by 1.7% at the mitochondrial ND2 gene and were previously considered to be allopatric. In this study, we discovered that the subspecies were parapatric. We use a larger sample size than previous studies to examine variation in morphology and mitochondrial haplotype across the distribution of each subspecies and within the region of parapatry. The subspecies occurring to the west, Amytornis modestus indulkanna, had larger body size and longer and narrower bill than the subspecies occurring to the east, A. m. raglessi. Within the region of parapatry, females were morphologically similar to A. m. indulkanna but had eastern mitochondrial haplotypes while males had intermediate morphology and either eastern or western haplotypes. Additionally, haplotypes from the western mitochondrial clade were found in A. m. raglessi. These patterns of morphology and mitochondrial diversity reveal discordance within the region of parapatry and to the east. We suggest that the subspecies have undergone asymmetric expansion from west to east, made secondary contact, and are currently hybridising.
