Taxonomic revision of dragon lizards in the genus Diporiphora (Reptilia: Agamidae) from the Australian monsoonal tropics

Melville, Jane; Date, Katie Smith; Horner, Paul; Doughty, Paul

doi:10.24199/j.mmv.2019.78.02

Cited by 10 publications

(8 citation statements)

References 27 publications

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“…Intrinsic dispersal limitation, represented by the IBD slopes, was not related to the habitat specialization, genus, or aridity. While populations of most of the rock‐specialist lineages can be found on widely‐dispersed flat rocks and open sandstone platforms (Melville et al, 2019; Oliver et al, 2019), only Gehyra koira and G . lapistola are associated with the more sparsely distributed tall rock escarpments (Oliver et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Predictors of phylogeographic structure among codistributed taxa across the complex Australian monsoonal tropics

et al. 2021

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Differences in the geographic scale and depth of phylogeographic structure across codistributed taxa can reveal how microevolutionary processes such as population isolation and persistence drive diversification. In turn, environmental heterogeneity, species’ traits, and historical biogeographic barriers may influence the potential for isolation and persistence. Using extensive SNP data and a combination of population genetic summary statistics and landscape genomic analyses, we explored predictors of the scale and depth of phylogeographic structure in codistributed lizard taxa from the topographically and climatically complex monsoonal tropics (AMT) of Australia. We first resolved intraspecific lineages and then tested whether genetic divergence across space within lineages is related to isolation by distance, resistance and/or environment and whether these factors differ across genera or between rock‐related versus habitat generalist taxa. We then tested whether microevolutionary processes within lineages explain differences in the geographic scale and depth of intraspecific phylogeographic lineages. The results indicated that landscape predictors of phylogeographic structure differ between taxa. Within lineages, there was prevalent isolation by distance, but the strength of isolation by distance is independent of the taxonomic family, habitat specialization, and climate. Isolation by environment is the strongest predictor of landscape‐scale genetic divergence for all taxa, with both temperature and precipitation acting as limiting factors. The strength of isolation by distance does not predict the geographic scale of the phylogeographic structure. However, more localized lineages had higher mean individual heterozygosity and less negative Tajima's D. This result implies that finer‐scale phylogeographic structuring within species is associated with larger and more stable populations and, hence, persistence.

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Section: Discussionmentioning

confidence: 99%

Predictors of phylogeographic structure among codistributed taxa across the complex Australian monsoonal tropics

et al. 2021

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“…Intrinsic dispersal limitation, represented by the IBD slopes, was not related to the habitat specialization, genus or aridity. While populations of most of the rock-specialist lineages can be found on widely-dispersed flat rocks and open sandstone platforms (Melville et al, 2019;Oliver et al, 2019), only Gehyra koira and G. lapistola are associated with the more sparsely distributed tall rock escarpments (Oliver et al, 2019). That even these taxa, and especially the widely distributed G. koira , did not have stronger IBD than generalists is surprising.…”

Section: Discussionmentioning

confidence: 99%

“…Recent multilocus phylogeographic analyses of the AMT lizard fauna have consistently revealed strong phylogeographic structure within taxonomically recognized species. In some cases, cryptic species complexes have subsequently been taxonomically revised (Afonso Silva et al, 2017;Doughty et al, 2018;Melville, Date, Horner, & Doughty, 2019;Oliver et al, 2019;, while assessments of species boundaries for other groups are still in progress (Catullo et al, 2014;Fujita et al, 2010;Laver, Doughty, & Oliver, 2018;Laver, Nielsen, Rosauer, & Oliver, 2017;Melville, Ritchie, Chapple, Glor, & Li, 2011;Potter et al, 2018). In some taxa (notably rock-specialist geckos; Laver et al, 2018;Moritz et al, 2018;Oliver et al, 2020) this phylogeographic structure can occur at very fine spatial scales, whereas in other taxa (e.g.…”

Section: Introductionmentioning

confidence: 99%

Predictors of Phylogeographic Structure among co-distributed taxa across the complex Australian Monsoonal Tropics

Fenker¹,

Tedeschi²,

Melville³

et al. 2020

Preprint

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Differences in the geographic scale and depth of phylogeographic structure across co-distributed taxa can reveal how microevolutionary processes such as population isolation and persistence drive diversification. In turn, environmental heterogeneity, species' traits and historical biogeographic barriers may influence the potential for isolation and persistence. Using extensive SNP data and a combination of population genetic summary statistics and landscape genomic analyses, we explore predictors of the scale and depth of phylogeographic structure in co-distributed lizard taxa from the topographically and climatically complex monsoonal tropics (AMT) of Australia. We first resolve intraspecific lineages and then test whether genetic divergence across space within lineages is related to isolation by distance, resistance and/or environment, and whether these factors differ across genera or between rock-related versus habitat generalist taxa. We then test whether microevolutionary processes within lineages explain differences in the geographic scale and depth of intraspecific phylogeographic lineages. Results indicate that landscape predictors of phylogeographic structure differ between taxa. Within lineages, there was prevalent isolation by distance, but the strength of isolation by distance is independent of the taxonomic family, habitat specialization and climate. Isolation by environment is the strongest predictor of landscape-scale genetic divergence for all taxa, with both temperature and precipitation acting as limiting factors. The strength of isolation by distance does not predict the geographic scale of phylogeographic structure. However localized lineages had higher mean individual heterozygosity and less negative Tajima's D. This implies that finer-scale phylogeographic structuring within species is associated with larger and more stable populations and, hence, persistence.Predictors of Phylogeographic Structure among co-distributed taxa across the complex Australian Monsoonal Tropics

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“…The error appears to be a minor typographical error in the registration numbers with 23020 replaced with 23030. In a recent revision of the northern Australian Diporiphora, Melville et al (2019) referred to the corrected holotype registration for the species. One paratype (R24176) could not be located and is presumed lost.…”

Section: Remarksmentioning

confidence: 99%

“…., Smith Date, K.L., Horner, P. andDoughty, P. (2019) Taxonomic revision of dragon lizards in the genus Diporiphora (Reptilia: Agamidae) from the Australian monsoonal tropics. Memoirs of Museum Victoria 78: 23-55 [52].…”

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confidence: 99%

An annotated type catalogue of the dragon lizards (Reptilia: Squamata: Agamidae) in the collection of the Western Australian Museum

Ellis¹

2019

Rec West Aust Mus

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The Western Australian Museum holds a vast collection of specimens representing a large portion of the 106 currently recognised taxa of dragon lizards (family Agamidae) known to occur across Australia. While the museum's collection is dominated by Western Australian species, it also contains a selection of specimens from localities in other Australian states and a small selection from outside of Australia. Currently the museum's collection contains 18,914 agamid specimens representing 89 of the 106 currently recognised taxa from across Australia and 27 from outside of Australia. This includes 824 type specimens representing 45 currently recognised taxa and three synonymised taxa, comprising 43 holotypes, three syntypes and 779 paratypes. Of the paratypes, a total of 43 specimens have been gifted to other collections, disposed or could not be located and are considered lost. An annotated catalogue is provided for all agamid type material currently and previously maintained in the herpetological collection of the Western Australian Museum.

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Taxonomic revision of dragon lizards in the genus Diporiphora (Reptilia: Agamidae) from the Australian monsoonal tropics

Cited by 10 publications

References 27 publications

Predictors of phylogeographic structure among codistributed taxa across the complex Australian monsoonal tropics

Predictors of phylogeographic structure among codistributed taxa across the complex Australian monsoonal tropics

Predictors of Phylogeographic Structure among co-distributed taxa across the complex Australian Monsoonal Tropics

An annotated type catalogue of the dragon lizards (Reptilia: Squamata: Agamidae) in the collection of the Western Australian Museum

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