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首页> 外文期刊>Zoological Journal of the Linnean Society >Testing species limits of New Zealand's leiopelmatid frogs through morphometric analyses
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Testing species limits of New Zealand's leiopelmatid frogs through morphometric analyses

机译：通过形态学分析测试新西兰雷哌米特蛙的物种限制

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摘要

The taxonomic status of some of New Zealand's endemic and threatened leiopelmatid frogs has been debated for decades. Clarifying this uncertainty is vital to their conservation, especially given the risk of extinction of cryptic taxa. We re-examined leiopelmatid diversity through multivariate analyses of the skeletal and external morphology of extinct and extant Leiopelma to determine morphological differentiation. Our results suggest that the morphological distinction between extinct taxa is greater than in modern extant taxa. While size ranges of postcranial elements overlapped within extant species, maxillae shape discriminated some extant taxa. We confirm the morphological distinctiveness of the extinct taxa recognized to date but identify latitudinal and altitudinal variation in postcranial element size and shape within the widespread Leiopelma markhami and L. waitomoensis, which suggest possible post-human extinction of cryptic taxa. Furthermore, the lack of morphological and osteological differentiation between L. archeyi and the insular extant L. hamiltoni and L. pakeka leads us to question the taxonomic distinctiveness of these three taxa. Future genetic research using modern and ancient DNA is recommended to enable species limits within Leiopelma to be tested in more detail to provide an evidence-based assessment for their conservation management.
机译：几十年来，一些新西兰的地方和受威胁的雷哌米特氏青蛙的分类物理状况已经讨论。澄清这种不确定性对他们的保护至关重要，特别是鉴于隐秘的分类群的灭绝风险。我们通过多元分析灭绝和现存的leiopelma的骨骼和外部形貌进行多变量分析来重新检查Leiopelmatid多样性，以确定形态分化。我们的研究结果表明，灭绝的株的形态区别大于现代现代分类群。虽然大小范围的后颅骨重叠在远端物种内，但上颌形状鉴别了一些现存的分类群。我们确认迄今为止认识到的灭绝出株植物的形态独特，但鉴定了延期和海拔地区的突出颅内元素规模和形状的延期变化，在普遍的Leiopelma Markhami和L. waitemoensis中，这表明可能的秘密群灭绝后的潜在群。此外，L. Archeyi和Intululate Laftant L. Hamiltoni和L.Pakeka之间缺乏形态学和骨论学分化，导致我们质疑这三种分类群的分类学区。建议使用现代和古代DNA使用现代和古代DNA的未来遗传研究，以便更详细地测试Leiopelma内的物种限制，以便为其保护管理提供基于证据的评估。

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