Three New Species of Frogs and a New Tadpole from Eastern Thailand

Stuart, Bryan L.; Chuaynkern, Yodchaiy; Chan-ard, Tanya; Inger, Robert F.

doi:10.3158/0015-0754(2006)187[1:tnsofa]2.0.co;2

Cited by 47 publications

(22 citation statements)

References 12 publications

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“…Xenophrys, yet many researchers retain usage of Megophrys s.l. for all species (e.g., Boulenger, 1908;Fei et al, 1990;Fei et al, 2009;Mahony et al, 2013;Orlov et al, 2015;Stuart et al, 2006). This conservative taxonomy is controversial and rejected by some authorities (Delorme et al, 2006;Frost et al, 2006;Li and Wang, 2008;Ohler, 2003; Rao and Yang, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…This is especially true in cases of diverse, understudied taxa like horned toads. The inclusion of molecular assessments and material from remote, previously unexplored areas in the last ten years has led to the description of many new species of horned toads (e.g., Li et al, 2014;Mahony et al, 2013;Stuart et al, 2006), suggesting that overall species richness may be underestimated. The names of widespread species, such as M. major, M. minor and M. parva, may conceal a great proportion of the species diversity (Mahony 2011;Mahony et al, 2013;Ye and Fei, 1995).…”

Section: Introductionmentioning

confidence: 99%

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A novel multilocus phylogenetic estimation reveals unrecognized diversity in Asian horned toads, genus Megophrys sensu lato (Anura: Megophryidae)

Chen

Zhou

Poyarkov

et al. 2017

Molecular Phylogenetics and Evolution

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The horned toad assemblage, genus Megophrys sensu lato, currently includes three groups previously recognized as the genera Atympanophrys, Xenophrys and Megophrys sensu stricto. The taxonomic status and species composition of the three groups remain controversial due to conflicting phenotypic analyses and insufficient phylogenetic reconstruction; likewise, the position of the monotypic Borneophrys remains uncertain with respect to the horned toads. Further, the diversity of the horned toads remains poorly understood, especially for widespread species. Herein, we evaluate species-level diversity based on 45 of the 57 described species from throughout southern China, Southeast Asia and the Himalayas using Bayesian inference trees and the Generalized Mixed Yule Coalescent (GMYC) approach. We estimate the phylogeny using both mitochondrial and nuclear DNA data. Analyses reveal statistically significant mito-nuclear discordance. All analyses resolve paraphyly for horned toads involving multiple strongly supported clades. These clades correspond with geography. We resurrect the genera Atympanophrys and Xenophrys from the synonymy of Megophrys to eliminate paraphyly of Megophrys s.l. and to account for the morphological, molecular and biogeographic differences among these groups, but we also provide an alternative option. Our study suggests that Borneophrys is junior synonym of Megophrys sensu stricto. We provide an estimation of timeframe for the horned toads. The mitochondrial and nuclear trees indicate the presence of many putative undescribed species. Widespread species, such as Xenophrys major and X. minor, likely have dramatically underestimated diversity. The integration of morphological and molecular evidence can validate this discovery. Montane forest dynamics appear to play a significant role in driving diversification of horned toads.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel multilocus phylogenetic estimation reveals unrecognized diversity in Asian horned toads, genus Megophrys sensu lato (Anura: Megophryidae)

Chen

Zhou

Poyarkov

et al. 2017

Molecular Phylogenetics and Evolution

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“…Of the remaining five clades that might represent unnamed species, four (clades F, G, H, and K; Fig. 1) were placed in K. bisacculus (Stuart and Emmett 2006, Thy et al 2010, Yu et al 2010, Nguyen et al 2014a, Nguyen et al 2014b). Even K. hainanus (clade J) was considered a synonym of K. bisacculus (Yu et al 2010).…”

Section: Discussionmentioning

confidence: 99%

A new species of Kurixalus from western Yunnan, China (Anura, Rhacophoridae)

Yang¹,

Hong²,

Rao³

et al. 2018

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A new species of the genus Kurixalus (Anura: Rhacophoridae) is described from western Yunnan, China. Genetically the new species, Kurixalus yangi sp. n., is closer to Kurixalus naso than to other known congeners. Morphologically the new species is distinguished from all other known congeners by a combination of the following characters: smaller ratios of head, snout, limbs, IND, and UEW to body size; male body size larger than 30 mm; curved canthus rostralis; weak nuptial pad; brown dorsal color; absence of large dark spots on surface of upper-middle abdomen; presence of vomerine teeth; gold brown iris; single internal vocal sac; serrated dermal fringes along outer edge of limbs; granular throat and chest; rudimentary web between fingers; and presence of supernumerary tubercles and outer metacarpal tubercle.

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“…Due to low temperatures and high humidity, the amount of leaf litter was distinctively high, indicating low levels of decomposition. Litter frog species are actually well-suited in this kind of habitat, favouring high density of leaf litter (Stuart et al 2006;Vonesh 2001). The declining trend of amphibian species along elevational gradient on Gunung Raya was expected due to the lack of water bodies (Figure 7).…”

Section: Distribution Pattern Along Elevation Gradientmentioning

confidence: 97%

Species Richness and Distributional Pattern of Amphibians along an Elevational Gradient at Gunung Raya, Pulau Langkawi, Kedah, Malaysia

Ehwan

Johana

Shukor³

et al. 2018

JSM

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A study on amphibian community at Gunung Raya, Pulau Langkawi was conducted in order to identify amphibian species richness and species distribution pattern along an elevation gradient. Species richness and distribution pattern of amphibians along an elevational gradient could explain factors that determine ecological processes in a particular highland. Passive sampling method by using two types of traps namely Drift-fenced pitfall trap and PVC pipe trap were used from February 2014 until January 2015. 100 individual comprise of 10 species amphibian were recorded. Leptobrachium smithii were the most abundant (n=37) followed by Megophrys aceras (n=28). Rank abundance curve for amphibian community show a Broken Stick pattern (χ2=12.67, p=0.12). Species accumulation curve does not level off to an asymptote, indicating insufficient sample size despite intensive sampling effort. Estimation analysis by using Chao 1 predictor produces 12 amphibian species based on 100 pooled individuals. A weak positive exponential function fits the distribution pattern of amphibian abundance (y=0.0028x+13.39), reflecting species domination towards the peak. A negative exponential function fits distribution pattern of amphibian species number across the elevation gradient (y=-0.0091x+7.247), due to the lack of permanent water resource at the upper elevation. These results indicated that by understanding the upland ecology of amphibians, important decisions may be critical for designing conservation efforts and planning land use.

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Three New Species of Frogs and a New Tadpole from Eastern Thailand

Abstract: 10 3. Measurements of Fejervarya triora sp. nov 14

Cited by 47 publications

References 12 publications

A novel multilocus phylogenetic estimation reveals unrecognized diversity in Asian horned toads, genus Megophrys sensu lato (Anura: Megophryidae)

A novel multilocus phylogenetic estimation reveals unrecognized diversity in Asian horned toads, genus Megophrys sensu lato (Anura: Megophryidae)

A new species of Kurixalus from western Yunnan, China (Anura, Rhacophoridae)

Species Richness and Distributional Pattern of Amphibians along an Elevational Gradient at Gunung Raya, Pulau Langkawi, Kedah, Malaysia

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