Biogeography and evolution of Central American cloud forest salamanders (Caudata: Plethodontidae: Cryptotriton), with the description of a new species
Biogeography and evolution of Central American cloud forest salamanders (Caudata: Plethodontidae: Cryptotriton), with the description of a new species
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中美洲云林蝾螈（有尾目：无尾齿螈科：隐蝾螈）的生物地理学和进化，以及新物种的描述
DOI：
10.1111/zoj.12268
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发表时间：
2015
影响因子：
2.8
通讯作者：
D. Wake
中科院分区：
文献类型：
--
作者：
Sean M. Rovito;Carlos R. Vásquez;T. Papenfuss;G. Parra;D. Wake
© 2015伦敦林奈学会。中美洲的云雾森林以其高度的特有性而闻名，而plethodontid蝾螈提供了一个在区域层面上跨越云雾森林区块的分歧和微特有性的突出例子。蝾螈，利用树栖凤梨微栖息地的云雾森林似乎是特别容易发散驱动的自然栖息地碎片化，预计将显示出高的地方特有性在小的空间尺度。我们使用一个多位点数据集调查的一个小属的蝾螈，Cryptotriton，仅限于核中美洲的云雾森林物种之间的地理历史和关系。我们使用的形态数据集沿着与结合物种划界方法，揭示了至少一个未描述的物种在危地马拉东部的一个孤立的云雾林的存在。生物地理学分析表明，Cryptotriton有一个不同的地理历史比另一个分支的云雾森林限制蝾螈在同一地区，也许表明，每个属限制了空间扩张和多样化的其他通过抢占。我们的研究结果表明，在相对较短的地理距离隔离导致了范围的碎片化和物种之间的深刻分歧。对云雾森林剩余部分的探索可能会继续揭示未被发现的多样性。
© 2015 The Linnean Society of London. The cloud forests of Mesoamerica are notable for their high endemism, and plethodontid salamanders provide a striking example of divergence and microendemism across cloud forest blocks at a regional level. Salamanders that make use of arboreal bromeliad microhabitats in the cloud forest appear to be especially prone to divergence driven by natural habitat fragmentation, and are expected to show high endemism at small spatial scales. We use a multilocus dataset to investigate the biogeographic history and relationships among species of a small genus of salamander, Cryptotriton, restricted to the cloud forests of Nuclear Central America. We use a morphological data set along with a coalescent species delimitation method to reveal the presence of at least one undescribed species from an isolated cloud forest in eastern Guatemala. Biogeographic analyses show that Cryptotriton has a different biogeographic history than another clade of cloud forest-restricted salamanders in the same region, perhaps indicating that each genus restricted the spatial expansion and diversification of the other through preemptive occupancy. Our results suggest that isolation across relatively short geographic distances has led to range fragmentation and deep divergence between species. Exploration of remaining patches of cloud forest likely will continue to reveal undetected diversity.
DNA 序列分析。
影响因子：
2.3
作者：
Weir,BS
通讯作者：
Weir,BS