A new species of the Aprasia repens species-group (Squamata: Pygopodidae) from Western Australia

Maryan, Brad; How, R. A.; Adams, Mark A.

doi:10.18195/issn.0312-3162.28(1).2013.030-043

Cited by 6 publications

(35 citation statements)

References 12 publications

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“…These tissues were incorporated into an extended allozyme study that also included all previous analysed Aprasia tissues (Maryan et al 2013a(Maryan et al , 2013b as well as some previously uncharacterised samples of the A. repens species-group tissues from the central west coast of Western Australia. The allozyme study also included exemplars of all other species of Aprasia, some of which were not included in previous studies.…”

Section: Allozyme Analysismentioning

confidence: 99%

“…Allozyme electrophoresis of liver homogenates was undertaken as described in Richardson et al (1986) for the same suite of enzymes as previously employed (Maryan et al 2013a(Maryan et al , 2013b. As in our earlier studies, we fi rst used an individual-based analytical procedure (stepwise Principal Coordinates Analysis: PCO), before subsequently undertaking taxon-based assessments of genetic affinities (Neighbour-joining tree).…”

Section: Allozyme Analysismentioning

confidence: 99%

“…We herein diagnose this population as the eighth species in the A. repens species-group. Our expanded analyses also resulted in the recognition of additional mainland populations of the recently described A. clairae (Maryan et al 2013a), and allow for an expanded account of the morphology, distribution and habitat associations of this geographically restricted species. Finally, our results provide further evidence for as yet unresolved taxonomic complexity within A. repens sensu stricto.…”

Section: Introductionmentioning

confidence: 99%

“…These previous investigations initiated a combined molecular and morphological appraisal of taxa within the A. repens species-group as proposed by Storr et al (1990). The fi rst outcome of this work was the description of A. clairae from single localities on the Houtman Abrolhos islands and the adjacent mainland near Dongara (Maryan et al 2013a). A second outcome was the description of A. litorea from the Lake MacLeod region, and the synonymising of A. fusca with A. rostrata (Maryan et al 2013b).…”

Section: Introductionmentioning

confidence: 99%

“…A second outcome was the description of A. litorea from the Lake MacLeod region, and the synonymising of A. fusca with A. rostrata (Maryan et al 2013b). During these studies several other unresolved taxonomic issues were noted within the A. repens species-group, including the identity of morphologically distinctive specimens from localities at the northern edge of the range of A. repens (Maryan et al 2013a). Previous treatments of A. repens have included specimens from as far north as Kalbarri (Storr et al 1990; Wilson and Swan 2013), however the http://www.zoobank.org/urn:lsid:zoobank.org:pub:B402B16D-1966-402B-A9DC-52C38F25B705 northernmost record is based on a single specimen of uncertain identity (Aplin and Smith 2001: 70).…”

Section: Introductionmentioning

confidence: 99%

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Taxonomic resolution of the Aprasia repens species-group (Squamata: Pygopodidae) from the Geraldton Sandplains: a description of a new species and additional mainland records of A. clairae

Maryan¹,

Adams²,

Aplin³

2015

Rec West Aust Mus

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Section: Allozyme Analysismentioning

confidence: 99%

Section: Allozyme Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Taxonomic resolution of the Aprasia repens species-group (Squamata: Pygopodidae) from the Geraldton Sandplains: a description of a new species and additional mainland records of A. clairae

Maryan¹,

Adams²,

Aplin³

2015

Rec West Aust Mus

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Mitochondrial introgression via ancient hybridization, and systematics of the Australian endemic pygopodid gecko genus Delma

Brennan

Bauer

Jackman

2016

Molecular Phylogenetics and Evolution

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Of the more than 1500 species of geckos found across six continents, few remain as unfamiliar as the pygopodids - Family Pygopodidae (Gray, 1845). These gekkotans are limited to Australia (44 species) and New Guinea (2 species), but have diverged extensively into the most ecologically diverse limbless radiation save Serpentes. Current phylogenetic understanding of the family has relied almost exclusively on two works, which have produced and synthesized an immense amount of morphological, geographical, and molecular data. However, current interspecific relationships within the largest genus Delma Gray 1831 are based chiefly upon data from two mitochondrial loci (16s, ND2). Here, we reevaluate the interspecific relationships within the genus Delma using two mitochondrial and four nuclear loci (RAG1, MXRA5, MOS, DYNLL1), and identify points of strong conflict between nuclear and mitochondrial genomic data. We address mito-nuclear discordance, and remedy this conflict by recognizing several points of mitochondrial introgression as the result of ancient hybridization events. Owing to the legacy value and intraspecific informativeness, we suggest the continued use of ND2 as a phylogenetic marker. Results identify strong support for species groups, but relationships among these clades, and the placement of several enigmatic taxa remain uncertain. We suggest a more careful review of Delma australis and the 'northwest Australia' clade. Accurately assessing and addressing species richness and relationships within this endemic Australian Gekkotan genus is relevant for understanding patterns of squamate speciation across the region.

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Environmental correlates of reptile variation on the Houtman Abrolhos archipelago, eastern Indian Ocean

How

Cowan

Teale³

et al. 2020

Journal of Biogeography

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Aim To examine the relationships between island environmental attributes, both biotic and abiotic, and three measures of reptilian variation—species assemblage, species richness and body size distributions. Location Houtman Abrolhos archipelago, Western Australia. Taxon Reptiles. Methods Nineteen islands were sampled from 2002 to 2012 using foraging and trapping. Body size (snout‐vent length) was measured on first capture. Island size varied from 0.3 to 587 ha, encompassing the three geomorphic island types, the three bathymetric groups and a range of other environmental attributes. Results From about 1,500 captures, 24 reptile species were recorded, including three previously undocumented on the archipelago, and 54 records of species not previously recorded on specific islands. Four significantly different reptile assemblage groups were identified. These were highly correlated with geomorphological composition—two groups encompassing the three large aeolianite islands; another the high rock islands and the largest composite island; and a fourth consisting of the remaining composite islands with one very small high rock island. Both assemblage and richness on islands were significantly correlated with island area, geomorphology and native plant species richness. Of the 13 species captured frequently, 11 showed statistically significant inter‐island variation in body size, and two exhibited sexual dimorphism. In three species, size was also correlated with environmental attributes, including reptile species richness, native plant richness, geomorphology and island area. Six of the eleven species captured on the two largest islands (both aeolianite) differed in size on these adjacent islands. Main Conclusions High inter‐island variation in body size and assemblage composition suggest strong differential selection since the most recent isolation event at 6,500 bp. Anthropogenic disturbances over the last 150 years have resulted in several island extinctions. Species assemblage and richness are strongly associated with environmental attributes. Inter‐island body size variation in three species revealed idiosyncratic responses to environmental pressures. Results provide guidance for effective conservation and management strategies, and evidence for the extinction debts inherent in more recently fragmented mainland habitats.

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A new species of the Aprasia repens species-group (Squamata: Pygopodidae) from Western Australia

Cited by 6 publications

References 12 publications

Taxonomic resolution of the Aprasia repens species-group (Squamata: Pygopodidae) from the Geraldton Sandplains: a description of a new species and additional mainland records of A. clairae

Taxonomic resolution of the Aprasia repens species-group (Squamata: Pygopodidae) from the Geraldton Sandplains: a description of a new species and additional mainland records of A. clairae

Mitochondrial introgression via ancient hybridization, and systematics of the Australian endemic pygopodid gecko genus Delma

Environmental correlates of reptile variation on the Houtman Abrolhos archipelago, eastern Indian Ocean

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