Kohsuke Tanigawa
Teaching
TA of inquiry-based learning course (2019-2020, Tokyo Metropolitan Minamitama Secondary Education School)
Research
Current: Thresholds in the warming tundra
Climate change is warming tundra ecosystems, but how will they response to this disturbance?
Additionally to simple physiological responses, many interactions complicate this matter, such as plant-soil microbial competition or facilitation.
My aim is to discover the threshold temperature beyond which tundra ecosystems will not able to sustain their functions, and explain how this threshold is determined by teasing apart these interacting mechanisms.
Past:
Legacy effect of excessive deer herbivory
Excessive herbivory by sika deer is widespread in Japanese forests.
I investigated whether there is a legacy effect of this disturbance, which indirectly influences the performance of seedlings without direct herbivory, and looked into its mechanism utilizing soil abiotic and biotic analyses, including microbial RNA extraction and qPCR.
Mesocarnivores’ habitat preference in the forest
Japanese cold-temperate mixed mountains with both conifers and broad leaf trees are home to multiple mesocarnivore species with seemingly overlapping niches.
I conducted a camera trap survey and Bayesian occupancy modeling to investigate how these co-occurring species differentiate in their habitat preferences.
Background
2019-2021 Master’s degree in Forest Science
Department of Forest Sciences,
Graduate School of Agricultural and Life Sciences,
The University of Tokyo
Supervised by Toshihide Hirao
Thesis Title: The legacy effect of excessive shika deer browsing on the growth of tree seedlings through the modification of soil microbial functions.
2015-2019 Bachelor’s degree in Agriculture
Forest Life Sciences Major,
Applied Life Sciences Course,
Faculty of Agriculture, The University of Tokyo
Supervised by Toshihide Hirao
Thesis Title: Local differentiation of habitat preference among mesocarnivore species in a cool-temperate forest of Eastern Japan.
Selected publications
Tanigawa, K., Makino, Y., Miura, N., Umeki, K., & Hirao, T. (2022) Mammalian Biology. Scale-dependent habitat selection of sympatric mesocarnivore species in a cool temperate forest in eastern Japan. https://doi.org/10.1007/s42991-022-00303-w
Tanigawa, K. & Hirao, T. (2022) Miscellaneous Information of The University of Tokyo Forests. Invasion of the raccoon Procyon lotor into the remote mountainous area of the Chichibu region, Saitama Prefecture, Japan. https://doi.org/10.15083/0002002923
Links
https://ktanigawacom.wordpress.com