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原文連結
論文資訊
- 類型：已發表論文
- 日期：2008
摘要
Aim: We investigate the directionality of mainland-to-island dispersals, focusing on a case study of an African-Malagasy bat genus, Triaenops (Hipposideridae). Taxa include T. persicus from east Africa and three Triaenops 物種 from Madagascar (T. auritus, T. furculus, and T. rufus). The 演化 of this bat family considerably post-dated the tectonic division of Madagascar from Africa, excluding vicariance as a viable hypothesis. Therefore, we consider three biogeographical scenarios to explain these 物種' current ranges: (A) a single dispersal from Africa to Madagascar with subsequent speciation of the Malagasy 物種; (B) multiple, unidirectional dispersals from Africa to Madagascar resulting in multiple, independent Malagasy lineages; or (C) early dispersal of a proto-物種 from Africa to Madagascar, wi
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