Research field (6)：
Environmental load/risk assessment
, Social-ecological systems
, Environmental agriculture
, Entomology
, Biodiversity and systematics
, Ecology and environmental science
Research theme for competitive and other funds (2)：
2017 - 2020 Reproductive interference between endemic Cobitis roach fishes: sympatric spawning and extinction risk triggered by changes of agricultural environments
2010 - 2011 滋賀県の水田における水生動物群集の動態と保全に関する研究
Papers (28)：
Nakanishi K., Akanuma H., Kobayashi R., Yokomizo H., Hayashi T.I., Robson B., Usio N. Experimental test of the effects of prolonged flooding practices on animal communities in rice paddy fields. Agriculture, Ecosystems and Environment. 2025. 379. 109369
Kosuke Nakanishi, Hiroyuki Yokomizo, Takehiko I Hayashi. Exploring the relationship between insecticide use and Sympetrum frequens population declines: An integrated causal inference approach. Japanese Journal of Conservation Ecology. 2024
Kosuke Nakanishi, Hiroyuki Yokomizo, Keiichi Fukaya, Taku Kadoya, Shin-ichiro S. Matsuzaki, Jun Nishihiro, Ayato Kohzu, Takehiko I. Hayashi. Inferring causal impacts of extreme water-level drawdowns on lake water clarity using long-term monitoring data. Science of The Total Environment. 2022. 838. Pt 2. 156088-156088
Kosuke Nakanishi, Nisikawa Usio, Hiroyuki Yokomizo, Tadao Takashima, Takehiko I. Hayashi. Chlorantraniliprole application differentially affects adult emergence of Sympetrum dragonflies in rice paddy fields. Paddy and Water Environment. 2021
Kosuke Nakanishi, Hiroyuki Yokomizo, Takehiko I. Hayashi. Population model analyses of the combined effects of insecticide use and habitat degradation on the past sharp declines of the dragonfly Sympetrum frequens. Science of the Total Environment. 2021. 787
Estimating causal impact of extreme drawdown on transparency improvement in Lake Biwa
(日本生態学会大会講演要旨(Web) 2022)
Analyses of the causal effects of insecticides and other factors on the sharp population declines of Sympetrum frequens using population models
(日本生態学会大会講演要旨(Web) 2021)
Evaluation of the effet of the systemic insecticide, chlorantraniliprole, used for nursery-box treatment on the emergence of Sympetrum dragonflies
(日本生態学会大会講演要旨(Web) 2020)
2021/04 - 現在 The Japanese Society of Environmental Entomology and Zoology Editorial Board (Associate Editor)
2015/04 - 現在 滋賀県生きもの総合調査委員会 昆虫類部会委員
Awards (2)：
2022/09 - The Entomological Society of Japan Best paper award
2015/11 - 日本環境動物昆虫学会 奨励賞
Association Membership(s) (6)：
THE JAPANESE SOCIETY OF ENVIRONMENTAL TOXICOLOGY
, COLEOPTEROLOGICAL SOCIETY OF JAPAN
, JAPANESE SOCIETY OF ENVIRONMENTAL ENTOMOLOGY AND ZOOLOGY
, THE ENTOMOLOGICAL SOCIETY OF JAPAN
, THE SOCIETY OF POPULATION ECOLOGY
, THE ECOLOGICAL SOCIETY OF JAPAN
