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AgungAde Prasetyo, ChorneliaAda, GrismerL. Lee, GrismerJesse L., S. H. QuahEvan, LuJian-Mei, TomlinsonKyle W., HughesAlice C.. 2022: 云南喀斯特地区发现的两个半叶趾虎属新种描述(爬行动物:壁虎科)及强调复杂的保护需求. 动物学研究, 43(5): 767-786. DOI: 10.24272/j.issn.2095-8137.2022.105
引用本文: AgungAde Prasetyo, ChorneliaAda, GrismerL. Lee, GrismerJesse L., S. H. QuahEvan, LuJian-Mei, TomlinsonKyle W., HughesAlice C.. 2022: 云南喀斯特地区发现的两个半叶趾虎属新种描述(爬行动物:壁虎科)及强调复杂的保护需求. 动物学研究, 43(5): 767-786. DOI: 10.24272/j.issn.2095-8137.2022.105
Ade Prasetyo Agung, Ada Chornelia, L. Lee Grismer, Jesse L. Grismer, Evan S. H. Quah, Jian-Mei Lu, Kyle W. Tomlinson, Alice C. Hughes. 2022: Description of two new species of Hemiphyllodactylus (Reptilia: Gekkonidae) from karst landscapes in Yunnan, China, highlights complex conservation needs. Zoological Research, 43(5): 767-786. DOI: 10.24272/j.issn.2095-8137.2022.105
Citation: Ade Prasetyo Agung, Ada Chornelia, L. Lee Grismer, Jesse L. Grismer, Evan S. H. Quah, Jian-Mei Lu, Kyle W. Tomlinson, Alice C. Hughes. 2022: Description of two new species of Hemiphyllodactylus (Reptilia: Gekkonidae) from karst landscapes in Yunnan, China, highlights complex conservation needs. Zoological Research, 43(5): 767-786. DOI: 10.24272/j.issn.2095-8137.2022.105

云南喀斯特地区发现的两个半叶趾虎属新种描述(爬行动物:壁虎科)及强调复杂的保护需求

Description of two new species of Hemiphyllodactylus (Reptilia: Gekkonidae) from karst landscapes in Yunnan, China, highlights complex conservation needs

  • 摘要: 喀斯特地貌栖息地是多样性和特有性的热点地区。该类型栖息地天然地片段化分布于广泛的地理景观中,由此演化出了一系列复杂的小型生态系统,并面临着保护方面的独特挑战。喀斯特栖息地的综合生物多样性评估表明,此生态系统中存在着极高的特有性,并拥有许多未被发现的环境限制性物种,因此对有效的保护管理带来了较大挑战。小型的岩石栖息物种如壁虎就极可能受到此类限制。该研究讨论了相同情形下的属:半叶趾虎属(Hemiphyllodactylus),并探索了本属在华南地区和云南省喀斯特地貌栖息地中的多样性。基于形态学数据和基因数据,该研究对位于思茅区和砚山县喀斯特生境内的两个半叶趾虎属新种进行描述,并利用线粒体 NADH 脱氢酶亚基 2 基因 (ND2) 的 1 039 个碱基对 (bp) ,构建了半叶趾虎属的系统发育树。基于未校正遗传成对距离分别大于 6.3% 和 4.3% 的结果以及显著的形态差异,思茅区与砚燕山县的标本可与其亚群内的其他同属物种区分开来。这两个新物种的发现将中国已描述的半叶趾虎属物种总数增加到了14个,并暗示喀斯特地貌内还有更多未知物种等待发现。研究结果表明,云南地区的喀斯特生态系统能够支持更高的半叶趾虎属多样性。该研究还强调了喀斯特生态系统作为特定地点,作为特有物种避难所的重要性,以及加强保护工作的必要性。

     

    Abstract: Karst habitats are hotspots of diversity and endemism. Their naturally fragmented distributions across broad geographic landscapes have led to the complex array of smaller evolutionary ecosystems that present unique challenges from a conservation perspective. Comprehensive biodiversity assessments of karst habitats have revealed that these ecosystems contain an almost unparalleled level of endemism, and many site-restricted species remain undescribed, thus posing considerable challenges for effective conservation management. Small rock-dwelling species, such as geckos, may be particularly prone to such isolation. In this paper, we discuss one such genus, i.e., Hemiphyllodactylus, and explore its diversity across karst landforms in Yunnan Province, southwestern China. Based on morphological and genetic data, we describe two new species of Hemiphyllodactylus from karst habitats in Simao District and Yanshan County. A phylogenetic tree for Hemiphyllodactylus was constructed using 1 039 base pairs (bp) of the mitochondrial NADH dehydrogenase subunit 2 gene (ND2). The Simao and Yanshan specimens can be distinguished from all other congeners within their respective subclades based on uncorrected genetic pairwise distances greater than 6.3% and 4.3% respectively, as well as significant morphological differences. The discovery and description of these two new species brings the total number of described Hemiphyllodactylus species in China to 14 and indicates many more undescribed species from unsurveyed karst regions await discovery. Our findings suggest that karst ecosystems in Yunnan support a higher diversity of Hemiphyllodactylus than previously known. This study also highlights the importance of karst ecosystems as refugia for site-specific endemic species and the need for heightened conservation efforts.

     

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