Changes in the Yakushika Population Index in the World Natural Heritage Area of Yakushima 2001-2018 (IMAGE)

Hokkaido University

Changes in the Yakushika Population Index in the World Natural Heritage Area of Yakushima 2001-2018

Caption

Changes in the yakushika population index in the World Natural Heritage Area of Yakushima from 2001 to 2018. The population density index peaked in 2014 and has been on a downward trend. Follow-up surveys confirmed that the downward trend is continuing, as of the summer of 2020 (solid triangles are numbers from Hanyama, open squares are numbers from Kawahara; Naoki Agetsuma, Yoshimi Agetsuma-Yanagihara, Hideki Sugiura. Japanese Journal of Conservation Ecology. April 20, 2021).

Credit

Naoki Agetsuma, Yoshimi Agetsuma-Yanagihara, Hideki Sugiura. <em>Japanese Journal of Conservation Ecology</em>. April 20, 2021

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