Tetsuro HOSAKA(保坂 哲朗)

  • Position:  Associate Professor
  • Major:  Ecology, Entomology, Human-nature interaction
  • Subjects: Ecosystem Conservation and Management Science
  • Research: 熱帯雨林における植物ー昆虫相互作用、熱帯における持続的生態系管理、都市生態学、自然ツーリズム/Plant-insect interactions in tropical rainforests, Sustainable ecosystem management in tropical countries, Urban ecology, Nature-based tourism


1. 沼田真也,保坂哲朗,高木悦郎.2018.マレーシアの熱帯雨林における野生生物とサステイナブルツーリズム.Pp. 178-189.菊池俊夫(編著)ツーリズムの地理学-観光から考える地域の魅力.二宮書店.
2. Mohamad, M. H. F., Yahya, N. A., Numata, S., Hosaka, T. 2018. Ethnic differences in satisfaction with the attractiveness of tropical urban parks. In Sustainable Future for Human Security ‒Society, Cities and Governance. McLellan (ed), Springer Nature, Singapore.
3. Numata, S., Hosaka, T. 2018. Current status and perspectives of biodiversity in Tokyo. Pp. 53-68. In Tokyo: New Geographical Perspectives. Kikuchi, T., Sugai, T. (eds), Springer Japan, Tokyo.


1. Muslim, H. F. M., Hosaka, T., Numata, S., Yahya, N. A. 2018. Nature experience promotes preference for and willingness to coexist with wild animals among urban and suburban residents in Malaysia. Ecological Processes 7: 18.
2. Mahmud, M. R., Hashim, M., Numata, S., Hosaka, T., Matsuyama, H. 2018. Spatial downscaling of satellite precipitation data in humid tropics using site specific seasonal co-efficient. Water 10: 409.
3. Cao, L., Fukumori, K., Hosaka, T., Numata, S., Hashim, M., Kosaki, T. 2018. The distribution of an invasive species, Clidermia hirta, along roads and trails in Endau Rompin National Park, Malaysia. Tropical Conservation Science 11: 1-9.
4. Mohamad, M. H. F., Hosaka, T., Numata, S., Yahya, N. A. 2017. Nature-related experiences during childhood in urban and rural areas: the case of Peninsular Malaysia. Urban Studies Research 2017: 7349219.
5. Hosaka, T., Sugimoto, K., Numata, S. 2017. Childhood experience of nature influences the willingness to coexist with biodiversity in cities. Palgrave Communications 3: 17071.
6. Widiyatno, Indrioko, S., Na’iem, M., Purnomo, S., Hosaka, T., Uchiyama, K., Tani, N., Numata, S., Matsumoto, A., Tsumura, Y. 2017. Effects of logging rotation in a lowland dipterocarp forest on mating system and gene flow in Shorea parvifolia. Tree Genetics & Genomes 13: 85.
7. Hosaka, T., Sugimoto, K., Numata, S. 2017. Effects of childhood experience with nature on tolerance of urban residents toward hornets and wild boars in Japan. PLOS ONE 12: e0175243.
8. 保坂哲朗,栗本美咲,沼田真也.2017.日本の昆虫文化と昆虫ツーリズム.観光科学研究10: 45-52.
9. Hosaka, T., Kurimoto, M., Numata, S. 2016. An overview of insect-related events in modern Japan: their extent and characteristics. American Entomologist 62: 228-234.
10. Hashim, M, Ito, S., Numata, S., Hosaka, T., Hossain, M. S., Misbari, S., Yahya, N. N., Ahmad, S. 2017. Using fisher knowledge, mapping population, habitat suitability and risk for the conservation of dugongs in Johor Straits of Malaysia. Marine Policy 78: 18-25.
11. Widiyatno, Budiadi, Suryanto, P., Rinarno, Y. DBM., Prianto, S.D., Hendro, Y., Hosaka, T., Numata, S. 2017. Recovery of vegetation structure, soil nutrient and late-succession species after shifting cultivation in Central Kalimantan, Indonesia. Journal of Tropical Forest Science 29: 151-162.
12. Azmy, M. M., Hashim, M., Numata, S., Hosaka, T., Noor, N. S. M., Fletcher, C. 2016. Satellite-based characterization of climatic conditions before large-scale general flowering events in Peninsular Malaysia. Scientific Reports 6: 32329.
13. Hosaka, T., Numata, S. 2016. Spatiotemporal dynamics of urban green spaces and human-wildlife conflicts in Tokyo. Scientific Reports 6: 30911.
14. Hosaka, T., Yumoto, T., Chen, Y. Y., Sun, I. F., Wright, S. J., Numata, S., Noor, N. S. M. 2017. Responses of pre-dispersal seed predators to sequential flowering of dipterocarps in Malaysia. Biotropica 49: 177-185.
15. Azmy, M. M., Hosaka, T., Numata, S. 2016. Responses of four hornet species to levels of urban greenness in Nagoya city, Japan: Implications for ecosystem disservices of urban green spaces. Urban Forestry and Urban Greening 18: 117-125.
16. 沼田真也,可知直毅,保坂哲朗.2016.研究活動は観光資源になり得るか?日本の世界自然遺産地における学術研究活動の役割.観光科学研究9: 119-124.
17. Yamada, T., Yoshida, S., Hosaka, T., Okuda, T. 2016. Logging residues conserve small mammalian diversity in a Malaysian production forest. Biological Conservation 194: 100-104.
18. Aihara, Y., Hosaka, T., Yasuda,M., Hashim, M., Numata, S. 2016. Mammalian wildlife tourism in Southeast Asian tropical rainforests: the case of Endau Rompin National Park, Malaysia. Journal of Tropical Forest Science 28: 167-181.
19. Hassan, N. Numata, S., Hosaka, T. Hashim, M. 2015. Remote detection of flowering Somei Yoshino (Prunus × yedoensis) in an urban park using IKONOS imagery: comparison of hard and soft classifiers. Journal of Applied Remote Sensing 9: 096046. doi:10.1117/1.JRS.9.096046.
20. Mahmud, M. R., Matsuyama, H., Hosaka, T., Numata, S., Hashim, M. 2015. Temporal Downscaling of TRMM Rain-Rate Images Using Principal Component Analysis during Heavy Tropical Thunderstorm Seasons. Journal of Hydrometeorology 16: 2264-2275.
21. Mahmud, M. R., Numata, S., Matsuyama, H., Hosaka, T., Hashim, M. 2015. Assessment of Effective Seasonal Downscaling of TRMM Precipitation Data in Peninsular Malaysia. Remote Sensing 7: 4092-4111. doi: 10.3390/rs70404092.
22. 櫻澤明樹,保坂哲朗,沼田真也.2015.帯広市ばんえい競馬観光客の馬券購入特性.観光科学研究8: 125-131.
23. 生亀正照,沼田真也,保坂哲朗.2014.多摩丘陵に生育する絶滅危惧種タマノホシザクラの分布と多摩ニュータウン開発との関連性.景観生態学19: 139-148.
24. Hosaka, T., Niino, M., Kon, M., Ochi, T., Yamada, T., Fletcher, C. D., Okuda, T. 2014. Impacts of small-scale clearings due to selective logging on dung beetle communities. Biotropica 46: 720-731. DOI: 10.1111/btp.12158
25. Yamada, T., Niino, M., Yoshida, S., Hosaka, T., Okuda, T. 2014. Impacts of Logging Road Networks on Dung Beetles and Small Mammals in a Malaysian Production Forest: Implications for Biodiversity Safeguards. Land 3: 639-657. doi: 10.3390/land3030639.
26. Hosaka, T., Kon, M., Ochi, T., Okuda, T., Yamada, T., Butod, E, Kirton, L. G. 2013. Responses of dung beetles to logging under Selective Management System in Peninsular Malaysia. Malayan Nature Journal 65: 54-60.
27. Niino, M., Hosaka, T., Kon, M., Ochi, T., Yamada, T., Okuda, T. 2014. Diel flight activity and habitat preference of dung beetles (Coleoptera: Scarabaeidae) in Peninsular Malaysia. Raffles Bulletin of Zoology 62: 795-804.
28. Hosaka, T., Niino, M., Kon, M., Ochi, T. Yamada, T., Fletcher, C., Okuda, T. 2014. Effects of logging road networks on the ecological functions of dung beetles in Peninsular Malaysia. Forest Ecology and Management 326:18-24. doi:10.1016/j.foreco.2014.04.004.
29. Numata, S., Yasuda, M., Suzuki, R. O., Hosaka, T., Nur Supardi M. N. Fletcher, C. D., Hashim, M. 2013. Geographical pattern and environmental correlates of regional-scale general flowering in Peninsular Malaysia. PLoS ONE 8: e79095. DOI: 10.1371/journal.pone.0079095.
30. Yamada, T., Hosaka, T., Okuda, T., Kassim, A. R. 2013. Effects of 50 years of selective logging on demography of trees in a Malaysian lowland forest. Forest Ecology and Management 310: 531-538.
31. 保坂哲朗,藤沼潤一,新納雅裕,吉田聡.2013.マレーシア狩猟採集民の暮らしと世界観に関する報告.観光科学研究 6: 167-176.
32. Hosaka, T., Yumoto, T., Chen, Y. Y., Sun, I. F., Wright, S. J., Noor, N. S. M. 2011. Abundance of insect seed predators and intensity of seed predation on Shorea (Dipterocarpaceae) in two consecutive masting events in Peninsular Malaysia. Journal of Tropical Ecology 27:651-655.
33. Hosaka, T., Yumoto, T., Kojima, H., Komai, F., Noor, N. S. M. 2009. Community structure of pre-dispersal seed predatory insects on eleven Shorea (Dipterocarpaceae) species. Journal of Tropical Ecology 25:625-636.
34. Van Achterberg, C., Hosaka, T., Ng, Y. F., Ghani, I. B. A. 2009. The braconid parasitoids (Hymenoptera: Braconidae) associated with seeds of Dipterocarpaceae in Malaysia. Journal of Natural History 43:635-686.
35. Hosaka, T., Takagi, S., Okuda, T. 2009. A preliminary survey of insect galls on dipterocarps in a lowland rainforest at Pasoh, Peninsular Malaysia. Tropics 18:93-102.
36. Hosaka, T., Arita, Y., Kirton, L. G. 2007. Seed predation on the dipterocarp Neobalanocarpus heimii (Dipterocarpaceae) by the clearwing moth Synanthedon nautica (Lepidoptera, Sesiidae) in Peninsular Malaysia; Transactions of Lepidopteran Society Japan 58:165-171.
37. Hosaka, T., Watanabe, H., Saharjo, B. H. 2005. The abundance and composition of arboreal arthropods in Acacia mangium and Paraserianthes falcataria plantations in South Sumatra, Indonesia. Tropics 14:255-262.

1. Mahmud, M. R., Numata, S., Matsuyama, H., Hosaka, T., Mazlan, H. 2014. Space-based precipitation radar for spatio-temporal hydrology analysis. Coordinates 10: 35-39.
2. 斎藤 昌幸, 金子 弥生, 増田 隆一, 園田 陽一, 保坂 哲朗.2017.都市における食肉目動物研究.哺乳類科学57: 157-158.
3. Mahmud, M. R., Numata, S., Matsuyama, H., Hosaka, T., Hashim, M. 2014. Challenge and opportunities of space-based precipitation radar for spatio-temporal hydrology analysis in tropical maritime influenced catchment: Case study on the hilly tropical watershed of Peninsular Malaysia. IOP Conference Series Earth and Environmental Science 18: 012001.
4. Hosaka, T., Yamada, T., Okuda, T. 2014. Road-networks, a practical indicator of human impacts on biodiversity in Tropical forests. IOP Conference Series Earth and Environmental Science 18: 012092.. Takagi, S., Hosaka, T., Okuda, T. 2005. Material of Dipterocarp-associated gall-inhabiting coccoids collected in Negeri Sembilan, Malaya (Homoptera: Coccoidea): Insecta Matsumurana New Series; Hokkaido University 62:123-151.

Comments are closed.