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 : 2026-07-22 11:07:28）

OKUDA Kei
Hiroshima shudo University The Faculty of Human Environmental Studies

Professor

■ Present specialized field

●Specialized field
Wildlife Ecology, Wildlife Management, Radioecology, Basic Biology
●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	Developmental differences in the organ-specific distribution of Cu, Zn, Cd, and Pb in free-ranging wild boar (Sus scrofa) (Collaboration) 2026/07
3.	Thesis	Mating attempts and sustained interest behaviors of wild boars (Sus scrofa) toward a dead conspecific (Collaboration) 2026/06
4.	Thesis	Reproductive potential in a wild boar population exposed for multiple generations to chronic low-dose radiation in Fukushima, Japan (Collaboration) 2026/06
5.	Thesis	Metagenomic insights into the global wild boar faecal microbiome reveal novel taxa and carbohydrate degraders distinguishing wild and domesticated Sus (Collaboration) 2026/04
6.	Thesis	Metagenome-assembled genomes, and gene and protein catalogues from the global wild boar faecal microbiome (Collaboration) 2026/03
7.	Thesis	Associational effects of closely related insect galls on rodent predators mediated by predator learning (Collaboration) 2025/12
8.	Thesis	Seed deposition patterns reflect the foraging behavior and food habits of mammalian seed dispersers (Collaboration) 2025/09
9.	Thesis	Movement ecology of a large ungulate following human abandonment of areas contaminated by the Fukushima Dai-ichi nuclear acciden (Collaboration) 2025/06
10.	Thesis	Fundamentals of wildlife dosimetry and lessons learned from a decade of measuring external dose rates in the field (Collaboration) 2024/09
11.	Thesis	The impact of sampling scale: A comparison of methods for estimating external contaminant exposure in free-ranging wildlife (Collaboration) 2024/02
12.	Thesis	Plant-plant interaction by Aster leiophyllus affects herbivory by Sika deer, Cervus nippon (Collaboration) 2022/12
13.	Thesis	都道府県における狩猟管理の経験が野生動物管理政策の有効性に与える影響 (Collaboration) 2022/11
14.	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
15.	Thesis	福島原発事故後のイノシシにおけるマイクロサテライト多型の顕著な変化 (Collaboration) 2022/06
16.	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
17.	Thesis	The origins and genetic composition of an expanding population of Japanese sika deer in southern Aizu, Fukushima Prefecture (Collaboration) 2021/12
18.	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
19.	Thesis	Introgression dynamics from invasive pigs into wild boar following the March 2011 natural and anthropogenic disasters at Fukushima (Collaboration) 2021/06
20.	Thesis	Effects of sika deer density on the diet and population of red foxes (Collaboration) 2021/03
21.	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
22.	Thesis	Effects of chronic low-dose radiation on cataract prevalence and characterization in wild boar (Sus scrofa) from Fukushima, Japan (Collaboration) 2020/03
23.	Thesis	Rewilding of Fukushima’s human evacuation zone (Collaboration) 2020/01
24.	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
25.	Thesis	Epidemiological survey of tick-borne encephalitis virus infection in wild animals on Hokkaido and Honshu islands, Japan (Collaboration) 2019/05
26.	Thesis	An evaluation of the efficiency of passive acoustic monitoring in detecting deer and primates in comparison with camera traps (Collaboration) 2019/03
27.	Thesis	A comparison of methods to derive aggregated transfer factors using wild boar data from the Fukushima Prefecture (Collaboration) 2019/02
28.	Thesis	Direct/Indirect effects on wild mammals caused by radioactive contamination (Collaboration) 2018/07
29.	Thesis	Early-stage ecological influences of population recovery of large mammals on dung beetle assemblages in heavy snow areas (Collaboration) 2018/07
30.	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
31.	Thesis	ニホンジカ個体群を対象とした能動・受動音響モニタリングの実用性評価 (Collaboration) 2017/04
32.	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
33.	Thesis	Indirect effects of sika deer on Japanese badgers (Collaboration) 2014/12
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■ Academic conference presentation

1.	2025/02	帰還困難区域とその周辺における内的・外的要因が野生イノシシの腸内細菌叢に与える影響
2.	2024/08	Seed community in the feces constructed by disperser: Does mammalian foraging behaviour detemine the situation of seedling competition? (8th Frugivores & Seed Dispersal Symposium)
3.	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)
4.	2022/03	Introgression of invasive pig genes into wild boar following the Fukushima events in 2011 (The 7th Annual Symposium of the IER)
5.	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)
6.	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)
7.	2020/03	Establishment of a dose response curve for dicentric chromosome analysis in wild boar (The 6th Annual Symposium of the IER)
8.	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)
9.	2018/11	Population composition of sika deer in a new distribution area
10.	2018/09	Cataract prevalence in the large japanese field mouse (Apodemus Speciosus) following the Fukushima nuclear disaster (American College of Veterinary Ophthalmologists)
11.	2018/09	Cataracts in boar following the Fukushima Dai-ichi nuclear disaster (2018 Radiation Research Society Annual Meeting)
12.	2017/07	Verifying the efficacy of passive acoustic monitoring for sika deer populations (12th International Mammalogical Congress)
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■ Subject

1.	Agricultural Practice
2.	Directed Research
3.	Environmental Research Program a
4.	Environmental Research Program b
5.	Field Observation Methodology
6.	Satoyama Studies
7.	Special Practice in Field Science (Wildlife Management Practice)
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