Geographic Variation in Skull Morphology of the Japanese Crocodile Newt, Echinotriton andersoni (Amphibia: Urodela: Salamandridae), Inferred from Geometric Morphometrics

DOI Web Site 参考文献12件
  • OZAKI Kotaro
    Graduate School of Human and Environmental Studies, Kyoto University
  • TOMINAGA Atsushi
    Faculty of Education, University of the Ryukyus
  • MATSUI Masafumi
    Graduate School of Human and Environmental Studies, Kyoto University
  • HARA Sotaro
    Graduate School of Human and Environmental Studies, Kyoto University
  • NISHIKAWA Kanto
    Graduate School of Human and Environmental Studies, Kyoto University Graduate School of Global Environmental Studies, Kyoto University

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タイトル別名
  • Geographic Variation in Skull Morphology of the Japanese Crocodile Newt, <i>Echinotriton andersoni</i> (Amphibia: Urodela: Salamandridae), Inferred from Geometric Morphometrics

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<p>The Anderson’s crocodile newt, Echinotriton andersoni, is an endangered species distributed in the islands of Central Ryukyus, Japan. This species is well known to show high intraspecific genetic variation among islands, but its morphological variation has not been explored. We examined the skull variation in this species including enigmatic specimens collected from Taiwan by using geometric morphometrics, and found sexual differences and geographic variation mainly between the Okinawa group (Okinawajima Island) and the Amami Group (Amamioshima and Tokunoshima Islands). We further found close resemblance between the Taiwanese specimens and the female specimens from Amamioshima Island.</p>

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