2012 Fiscal Year Final Research Report

Inference of oversea dispersal abilities of amphibians and terrestrial reptiles in the central Ryukyu based on the island equilibrium model

Research Project

Project/Area Number	22570094
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Biodiversity/Systematics
Research Institution	University of the Ryukyus
Principal Investigator	TODA Mamoru 琉球大学, 熱帯生物圏研究センター, 准教授 (40378534)
Project Period (FY)	2010 – 2012
Keywords	両生類 / 爬虫類 / 琉球列島 / 分布 / 島嶼集団 / 洋上分散 / 遺伝解析
Research Abstract	Distributions of amphibians and reptiles in many islands of the Amami and Okinawa Groups were surveyed. An analysis using area-distance model showed that in a few species geographic distance from main-islands had a significant explanatory power for presence/absence of the species in an island, suggesting that overseas dispersals have taken some role in maintenance of island populations in those species. However, genetic analysis for a few species did not support this view.

(4 results)