My research interests are diverse, but I am particularly focused on biodiversity conservation and the utilization of ecosystem services in agricultural landscapes. I have investigated the impacts of farmland abandonment, environmentally friendly farming practices, and agricultural intensification. Currently, I am exploring the role of biodiversity in agricultural sustainability, as well as the synergies and trade-offs between biodiversity conservation and climate change mitigation. Through various approaches—including fieldwork, citizen science data, and meta-analyses—I aim to contribute to solving environmental challenges. I am also deeply interested in international collaboration, having conducted overseas research in Australia. I am always open to joint research opportunities—please feel free to get in touch!

CV

Available from HERE

SELECTED PUBLICATIONS

1.       Katayama N, Fujita T, Ueta M, Morelli F & Amano T 2024. Effects of human depopulation and warming climate on bird populations in Japan. Conservation Biology 38: e14175.

2.       Katayama N, Baba YG, Okubo S & Matsumoto H. 2023. Taxon-specific responses to landscape-scale and long-term implementation of environmentally friendly rice farming. Journal of Applied Ecology 60: 1399–1408.

3.       Katayama N, Osada Y, Mashiko M, et al. 2019. Organic farming and associated management practices benefit multiple wildlife taxa: A large-scale field study in rice paddy landscapes. Journal of Applied Ecology 56: 1970-1981.

4.       Katayama N, Bouam I, Koshida C & Baba YG. 2019. Biodiversity and yield under different land management regimes in orchard/vineyard landscapes: a meta-analysis. Biological Conservation 229: 125–133.

5.       Katayama N, Baba YG, Kusumoto Y & Tanaka K. 2015. A review of post-war changes in rice farming and biodiversity in Japan. Agricultural Systems 132: 73–84.

See all publications from my google scholar page

SELECTED CONFERENCES/SEMINARS

1.       Katayama N 2025. [Symposium] Challenges and opportunity for biodiversity conservation in Japanese rice ecosystems. The 11th EAFES International Congress, Tokyo.

2.       Katayama N & Amano T 2025. [Poster presentation] Is human depopulation a chance for biodiversity conservation? A case in Japan. 2025 International Congress for Conservation Biology, Brisbane.

3.       Katayama N & Amano T. 2024. [Symposium] Biodiversity conservation and sustainable rice agriculture: past achievements and future challenges in Japan. 2024 Conference of the Ecological Society of Australia, Melbourne.

4.       Katayama N 2024. [Invited oral] The importance of rice ecosystems for biodiversity conservation in Japan. Symposium on Agricultural Long-Term Ecological Research, Taiwan.

5.       Katayama N, Mashiko M & Koshida C. 2016. [Symposium] Effects of environmentally-friendly farming on waterbird use of rice fields in Japan. The 7th EAFES International Congress, Deagu, Korea.