オクダ　ケイ   OKUDA Kei   奥田　圭    所属   広島修道大学  人間環境学部    職種   教授
言語種別	英語
発行・発表の年月	2025/06
形態種別	学術論文
査読	査読有り
標題	Movement ecology of a large ungulate following human abandonment of areas contaminated by the Fukushima Dai-ichi nuclear acciden
執筆形態	共著
掲載誌名	Environment International
掲載区分	国外
巻・号・頁	202,pp.#109616
頁数	13
著者・共著者	◎Helen L. Bontrager, Travis E. Stoakley, Thomas G. Hinton, Jeff Hepinstall-Cymerman, Kei Okuda, Takehuro Uno, James C. Beasley
概要	The Fukushima Dai-ichi nuclear disaster led to widespread human evacuation, but wildlife such as Japanese wild boar remained. This study examined spatial and temporal behavior of 34 wild boar within the Fukushima Exclusion Zone (FEZ) and compared it to 7 individuals outside the zone using GPS data. Boars inside the FEZ showed increased daytime activity and selected both natural habitats and human-abandoned areas like rice paddies and urban spaces. Hidden Markov models revealed distinct behavioral patterns compared to boars in inhabited areas. These findings highlight how wildlife adapt their habitat use and activity patterns in response to human absence and provide insights useful for managing future human-wildlife interactions during resettlement.