Detail of Grant Awarded General Researches
Temporal Changes in the Distribution of Freshwater Turtles in the Tama River Watershed
(at that time)
|Director, Certified Nonprofit Organization SEITAI KOUBOU (Ecology Workshop)|
In order to identify the distribution of freshwater turtles in the Tama River watershed and the Tokyo metropolitan area, we conducted (1) a visual observation in the river and (2) a collection of eyewitness information of turtles from citizens. In addition, to clarify chronological changes in the distribution of the turtles, we carried out (2) above and (3) a literature search. Based on the findings, we made chronological habitat distribution maps of native and invasive turtle species confirmed in this area. We also examined the current status of native turtles in the area and when alien turtles came to and how they have spread in this area.
Tomomi Kataoka, Kim Hyeonjin, Aimu Iwamoto
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