|| 要旨トップ | 本企画の概要 |||日本生態学会第57回全国大会 (2010年3月，東京) 講演要旨|
The scincid lizard Plestiodon latiscutatus (オカダトカゲ) is one of only a few terrestrial vertebrate animals inhabiting the Izu Islands. From an evolutionary biology and ecology aspect, オカダトカゲ are fascinating because the populations on each island are composed of one of two different color morphs. Moreover, the color morph on each island is associated with 2 deferent predators, snakes and birds. Vivid color morph have snake predator, however dull color morph have bird predator. To provide phylogenetic evidence that these color patterns have evolved multiple times, and are thus, likely a case of convergent adaptation, we reconstruct the phylogenetic history of Izu Island オカダトカゲ and snake predator using Bayesian analyses of mitochondrial and nuclear DNA. Moreover, we compare the phylogeographic history of オカダトカゲ with that of other Izu Island species and attempt to construct a general phylogeographic history of the Izu island archipelago.