TY - JOUR AU - Maddock, Simon T. AU - Nussbaum, Ronald A. AU - Day, Julia J. AU - Latta, Leigh AU - Miller, Mark AU - Fisk, Debra L. AU - Wilkinson, Mark AU - Rodrigues Passos Rocha, Sara AU - Gower, David J. AU - Pfrender, Michael E. PY - 2020 SN - 14712148 UR - http://hdl.handle.net/11093/3422 AB - Background: Island systems offer excellent opportunities for studying the evolutionary histories of species by virtue of their restricted size and easily identifiable barriers to gene flow. However, most studies investigating evolutionary patterns and... AB - Results: Overall a signal of strong geographic structuring with distinct northern- and southern-island clusters were identified across all datasets. We suggest that these distinct groups have been isolated for ca. 1.26 Ma years without subsequent... AB - Conclusions: Although variation in H. rostratus across the Seychelles is explained more by isolation-by-distance than by adaptation, the genetic-morphological incongruence for affinities of Frégate H. rostratus might be caused by local adaptation... LA - eng PB - BMC Evolutionary Biology TI - The roles of vicariance and isolation by distance in shaping biotic diversification across an ancient archipelago: evidence from a Seychelles caecilian amphibian DO - 10.1186/s12862-020-01673-w ER -