The biogeographical history of Asian keelback snakes of the genus Hebius (Squamata: Colubridae: Natricinae) in the Ryukyu Archipelago, Japan
The biogeographical history of Asian keelback snakes of the genus Hebius (Squamata: Colubridae: Natricinae) in the Ryukyu Archipelago, Japan
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日本琉球群岛赫比乌斯属亚洲龙骨蛇（有鳞目：蛇蛇科：蛇形蛇亚科）的生物地理学历史
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Toda
中科院分区：
文献类型：
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作者：
Takuma Kaito;M. Toda
琉球群岛中部和南部的岛屿和台湾容纳了许多陆生脊椎动物的异域地方性套件。这些次区域自晚中新世以来被隔离为三个独立的岛屿，通过早更新世陆桥（EPL）与大陆相连。许多地方病被认为是通过伴随着EPL崩溃的替代事件出现的，但这并没有得到很好的证实。我们进行了分歧测年分析样本的四个allopatric龙骨蛇从20个岛屿使用公布的时间表natricine蛇。系统发育分析确认存在8个亚支的四个物种。琉球中部的五个亚支中有四个是在三个亚区最初孤立之后，但在EPL崩溃之前出现的，这表明超级岛内部的迭代分歧和分歧实体的停滞。与此相反，南琉球遭受来自中琉球和台湾的多次入侵，无论EPL的联系如何。因此，在所有七个节点中，只有两个符合替代假设。这些研究结果表明，分散和随后的nonvicariant分歧，有助于在这个大陆岛链目前的海洋地理格局的形成。
The islands of the central and southern parts of the Ryukyu Archipelago and Taiwan accommodate suites of allopatric endemics for many terrestrial vertebrates. These subregions, which were isolated as three independent islands since the Late Miocene period, became connected to the continent by the Early Pleistocene land bridge (EPL). Many endemics are considered to have emerged through vicariant events accompanied with the collapse of EPL, but this is not well corroborated. We conducted divergence dating analyses for samples of four allopatric keelback snakes from 20 islands using a published timeframe for natricine snakes. Phylogenetic analyses recognised the existence of eight subclades for the four species. Four of the five subclades in the Central Ryukyus have emerged after the initial isolation of three subregions but before the EPL collapse, indicating iterative divergences within the super-island and stagnation of diverged entities. In contrast, the Southern Ryukyus was subjected to multiple incursions from both Central Ryukyus and Taiwan, irrespective of the EPL connection. Consequently, among all seven nodes, only two were consistent with the assumption of vicariance. These findings suggest that dispersals and subsequent nonvicariant divergences have contributed to the formation of the current phylogeographical pattern in this continental island chain.
中亚和其他家鼠的遗传变异和系统发育地理学，包括也门的一个主要的新线粒体谱系。
影响因子：
3.3
作者：
Prager,EM;Orrego,C;Sage,RD
通讯作者：
Sage,RD