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陈进民, 徐凯, PoyarkovNikolay A., 王剀, 袁智勇, 侯勉, SuwannapoomChatmongkon, 王剑, 车静. 2020: 我们对“小棕蛙”的多样性知之甚少:描述中国云南省掌突蟾属(无尾目:角蟾科)三个新种. 动物学研究, 41(3): 292-313. DOI: 10.24272/j.issn.2095-8137.2020.036
引用本文: 陈进民, 徐凯, PoyarkovNikolay A., 王剀, 袁智勇, 侯勉, SuwannapoomChatmongkon, 王剑, 车静. 2020: 我们对“小棕蛙”的多样性知之甚少:描述中国云南省掌突蟾属(无尾目:角蟾科)三个新种. 动物学研究, 41(3): 292-313. DOI: 10.24272/j.issn.2095-8137.2020.036
Jin-Min Chen, Kai Xu, Nikolay A. Poyarkov, Kai Wang, Zhi-Yong Yuan, Mian Hou, Chatmongkon Suwannapoom, Jian Wang, Jing Che. 2020: How little is known about “the little brown frogs”: description of three new species of the genus Leptobrachella (Anura: Megophryidae) from Yunnan Province, China. Zoological Research, 41(3): 292-313. DOI: 10.24272/j.issn.2095-8137.2020.036
Citation: Jin-Min Chen, Kai Xu, Nikolay A. Poyarkov, Kai Wang, Zhi-Yong Yuan, Mian Hou, Chatmongkon Suwannapoom, Jian Wang, Jing Che. 2020: How little is known about “the little brown frogs”: description of three new species of the genus Leptobrachella (Anura: Megophryidae) from Yunnan Province, China. Zoological Research, 41(3): 292-313. DOI: 10.24272/j.issn.2095-8137.2020.036

我们对“小棕蛙”的多样性知之甚少:描述中国云南省掌突蟾属(无尾目:角蟾科)三个新种

How little is known about “the little brown frogs”: description of three new species of the genus Leptobrachella (Anura: Megophryidae) from Yunnan Province, China

  • 摘要: 掌突蟾属(两栖类:角蟾科)物种具有极其丰富的多样性。先前的研究表明,该属的物种数目仍然被大大低估。基于2013年至2018年的野外调查,我们从中国云南省南部和西部的国界地区收集了一系列掌突蟾属标本。随后,结合形态学和分子数据进行的联合分析揭示了3个掌突蟾属新物种,并在本文中对它们进行了正式描述。其中,我们发现了在中国分布海拔最高的掌突蟾属物种;在同一保护区内发现了4种掌突蟾属物种,包括2种新种。此外,我们的结果表明,来自云南省陇川县的掌突蟾属种群可能代表了另一个新物种,由于我们获得的样品有限,暂将其命名为疑似盈江掌突蟾。我们也首次提供了盈江掌突蟾雌性的描述。我们的结果进一步表明,地方特有种和同域物种分布是掌突蟾属物种的常见分化模式,这对这类青蛙的分类和保护提出了挑战。文章同时提供了云南省掌突蟾属已知种的检索表。鉴于国界线区域被低估的多样性,我们建议未来的研究应包括跨国合作调查。

     

    Abstract: Asian leaf-litter toads of the genus Leptobrachella represent a great anuran diversification in Asia. Previous studies have suggested that the diversity of this genus is still underestimated. During herpetological surveys from 2013 to 2018, a series of Leptobrachella specimens were collected from the international border areas in the southern and western parts of Yunnan Province, China. Subsequent analyses based on morphological and molecular data revealed three distinct and previously unknown lineages, which we formally describe as three new species herein. Among them, we describe a new species that occurs at the highest known elevation for Leptobrachella in China. Four species of Leptobrachella, including two new species, are found in the same reserve. Furthermore, our results suggest that the population from Longchuan County, Yunnan, may represent an additional new species of Leptobrachella, although we tentatively assigned it to Leptobrachella cf. yingjiangensis due to the small sample size examined. Lastly, we provide the first description of females of L. yingjiangensis. Our results further highlight that both micro-endemism and sympatric distributions of species are common patterns in Leptobrachella, that contribute to taxonomic and conservation challenges in these frogs. We provide an identification key for Leptobrachella known to occur in Yunnan. Given the lack of knowledge on species diversity of Leptobrachella along international border areas, we recommend that future studies include trans-boundary collaborative surveys.

     

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