Educe University Faculty Information

Present specialized field
Academic background
Business career
Book and thesis
Academic conference presentation
Subject
Activity in society
E-Mail Address

（Last updated : 2025-06-23 15:57:45）

OKUDA Kei
Hiroshima shudo University The Faculty of Human Environmental Studies

Professor

■ Present specialized field

●Specialized field
Wildlife Ecology, Wildlife Management, Radioecology
●Keyword
Wildlife management, Ecology, Biological interaction, Mammal, Bird
●The main research themes
●Capable of joint research and research consultation content

■ Academic background

2010/04～2013/03

Tokyo University of Agriculture and Technology 〔Doctoral course〕 Completed

■ Business career

1.	2018/04～2020/03	Hiroshima shudo University The Faculty of Human Environmental Studies Assistant Professor
2.	2020/04～2024/03	Hiroshima shudo University The Faculty of Human Environmental Studies Associate Professor

■ Book and thesis

1.	Book	Radiocesium Dynamics in a Japanese Forest Ecosystem (Collaboration) 2019/10
2.	Thesis	Movement ecology of a large ungulate following human abandonment of areas contaminated by the Fukushima Dai-ichi nuclear acciden (Collaboration) 2025/06
3.	Thesis	Fundamentals of wildlife dosimetry and lessons learned from a decade of measuring external dose rates in the field (Collaboration) 2024/09
4.	Thesis	The impact of sampling scale: A comparison of methods for estimating external contaminant exposure in free-ranging wildlife (Collaboration) 2024/02
5.	Thesis	Plant-plant interaction by Aster leiophyllus affects herbivory by Sika deer, Cervus nippon (Collaboration) 2022/12
6.	Thesis	Radiocesium accumulation and germline mutations in chronically exposed wild boar from Fukushima, with radiation doses to human consumers of contaminated meat (Collaboration) 2022/08
7.	Thesis	Increased abundance of a common scavenger affects allocation of carrion but not efficiency of carcass removal in the Fukushima Exclusion Zone (Collaboration) 2022/05
8.	Thesis	The origins and genetic composition of an expanding population of Japanese sika deer in southern Aizu, Fukushima Prefecture (Collaboration) 2021/12
9.	Thesis	Evaluation of DNA damage and stress in wildlife chronically exposed to low-dose, low-dose rate radiation from the Fukushima Daiichi Nuclear Power Plant accident (Collaboration) 2021/10
10.	Thesis	Introgression dynamics from invasive pigs into wild boar following the March 2011 natural and anthropogenic disasters at Fukushima (Collaboration) 2021/06
11.	Thesis	Effects of sika deer density on the diet and population of red foxes (Collaboration) 2021/03
12.	Thesis	Differentiating Fukushima and Nagasaki plutonium from global fallout using ²⁴¹Pu/²³⁹Pu atom ratios: Pu vs. Cs uptake and dose to biota (Collaboration) 2021/02
13.	Thesis	Effects of chronic low-dose radiation on cataract prevalence and characterization in wild boar (Sus scrofa) from Fukushima, Japan (Collaboration) 2020/03
14.	Thesis	Rewilding of Fukushima’s human evacuation zone (Collaboration) 2020/01
15.	Thesis	Mating of escaped domestic pigs with wild boar and possibility of their offspring migration after the Fukushima Daiichi Nuclear Power Plant accident (Collaboration) 2019/08
16.	Thesis	Epidemiological survey of tick-borne encephalitis virus infection in wild animals on Hokkaido and Honshu islands, Japan (Collaboration) 2019/05
17.	Thesis	An evaluation of the efficiency of passive acoustic monitoring in detecting deer and primates in comparison with camera traps (Collaboration) 2019/03
18.	Thesis	A comparison of methods to derive aggregated transfer factors using wild boar data from the Fukushima Prefecture (Collaboration) 2019/02
19.	Thesis	Direct/Indirect effects on wild mammals caused by radioactive contamination (Collaboration) 2018/07
20.	Thesis	Early-stage ecological influences of population recovery of large mammals on dung beetle assemblages in heavy snow areas (Collaboration) 2018/07
21.	Thesis	Gene expression analyses of the small intestine of pigs in the ex-evacuation zone of the Fukushima Daiichi Nuclear Power Plant (Collaboration) 2017/11
22.	Thesis	Stable carbon and nitrogen isotopic composition of a whisker and fur from a stuffed 19th century specimen of the extinct Japanese river otter collected from inland Honshu, Japan (Collaboration) 2015/12
23.	Thesis	Indirect effects of sika deer on Japanese badgers (Collaboration) 2014/12
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■ Academic conference presentation

1.	2022/09	Radiocesium accumulation in wild boar from Fukushima and construction of dose-response curves to evaluate radiation exposure by dicentric chromosome analysis (日本放射線影響学会65回大会)
2.	2021/10	Wild boar gut microbiome dynamics are driven by gut site location and radiation dose in the Fukushima Difficult-to-Return Zone (IER international symposium)
3.	2020/03	DNA analyses to estimate life-time dose from radiation exposures estimation of life-time doses to wild boar using dicentric chromosome analysis (The 6th Annual Symposium of the IER)
4.	2020/03	Establishment of a dose response curve for dicentric chromosome analysis in wild boar (The 6th Annual Symposium of the IER)
5.	2020/02	Establishing in-vitro high and low dose rate standard curves with dicentric aberration frequency in wild boar lymphocytes (The 4th International Symposium of the Network-type Joint Usage/Research Center for Radiation Disaster Medical Science)
6.	2018/11	Population composition of sika deer in a new distribution area
7.	2018/09	Cataract prevalence in the large japanese field mouse (Apodemus Speciosus) following the Fukushima nuclear disaster (American College of Veterinary Ophthalmologists)
8.	2018/09	Cataracts in boar following the Fukushima Dai-ichi nuclear disaster (2018 Radiation Research Society Annual Meeting)
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■ Subject

1.	Directed Research
2.	Environmental Project
3.	Environmental Research Program a
4.	Environmental Research Program b
5.	Field Observation Methodology
6.	Satoyama Field Practice
7.	Satoyama Studies
8.	Thesis
9.	Wildlife Management
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■ Activity in society

2019/03

（新聞等の記事等への対応）The Times: Eight years after the Fukushima disaster, homes are occupied by hordes of radioactive boar

■ E-Mail Address