Understanding the interaction between plants and seed predatory insects in tropical rainforests in Southeast Asia using DNA barcoding

• Project/Area Number: 26840150
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Ecology/Environment
• Research Institution: Hiroshima University (2017); Tokyo Metropolitan University (2014-2016)
• Principal Investigator: Hosaka Tetsuro 広島大学, 国際協力研究科, 准教授 (50626190)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 熱帯雨林 / 一斉開花 / 生物間相互作用 / 生物多様性 / 国際情報交換 / マレーシア / シンガポール / 植物－動物相互作用 / フェノロジー

Outline of Final Research Achievements

Weevil larvae are major pests on seeds of dipterocarps, which dominate tropical rainforests in Southeast Asia. However, species composition of the seed weevils are still unclear due to difficulty in obtaining adult samples by rearing. This study aimed to identify all the weevil species on dipterocarp seeds using DNA barcoding.
We found a new group of Curculio weevils as one of the major dipterocarp seed predators besides Alcidodes and nanophyid weevils already known. Comparing phylogeny of weevils and dipterocarps, we found that species composition of weevils were distinct among dipterocarp genera.

Research Products

• [Int'l Joint Research] マレーシア森林研究所(マレーシア)
• [Int'l Joint Research] 南洋工科大学(シンガポール)
• [Int'l Joint Research] 東華大学(台湾)
• [Int'l Joint Research] スミソニアン熱帯林研究所(パナマ)
• [Int'l Joint Research] マレーシア森林研究所(マレーシア)
• [Int'l Joint Research] 東華大学(台湾)
• [Int'l Joint Research] スミソニアン熱帯林研究所(米国)
• [Int'l Joint Research] Forest Research Institute Malaysia/University Technology Malaysia(マレーシア)
• [Int'l Joint Research] National Institute of Education(シンガポール)
• [Int'l Joint Research] Center for Tropical Forest Science(米国)
• [Int'l Joint Research] National Donghwa University(台湾)
• [Journal Article] Responses of pre-dispersal seed predators to sequential flowering of Dipterocarps in Malaysia (2016)
  • Author(s): Hosaka, T., Yumoto, Y., Chen, Y.Y., Sun, I.F., Wright, S.J., Numata, S., Nur Supardi, M.N.
  • Journal Title: Biotropica Volume: 49 Issue: 2 Pages: 177-185
  • DOI: 10.1111/btp.12371
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Logging residues conserve small mammalian diversity in a Malaysian production forest (2016)
  • Author(s): Yamada, T., Yoshida, S., Hosaka, T., Okuda, T.
  • Journal Title: Biological Conservation Volume: 194 Pages: 100-104
  • DOI: 10.1016/j.biocon.2015.12.004
  • Peer Reviewed
• [Journal Article] Mammalian wildlife tourism in Southeast Asian tropical rainforests: the case of Endau Rompin National Park, Malaysia (2016)
  • Author(s): Aihara, Y., Hosaka, T., Yasuda,M., Hashim, M., Numata, S.
  • Journal Title: Journal of Tropical Forest Science Volume: 28 Pages: 172-186
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 伐採道とフン虫と種子散布 - 熱帯生産林における生物多様性保全に向けて - (2015)
  • Author(s): 保坂哲朗
  • Journal Title: 日本熱帯生態学会ニューズレター Volume: 101 Pages: 2-7
  • Open Access
• [Journal Article] Intensity of pre-dispersal seed predation by insects on Shorea leprosula (Dipterocarpaceae) in three general flowering events (2015)
  • Author(s): Tetsuro Hosaka, Shinya Numata, Christine Dawn Fletcher
  • Journal Title: Progress report Joint Research Project on Tropical Forest Ecology and Biodiversity Volume: 2014 Pages: 115-118
  • Acknowledgement Compliant
• [Journal Article] Impacts of small-scale clearings due to selective logging on dung beetle communities (2014)
  • Author(s): Tetsuro Hosaka, Masahiro Niino, Masahiro Kon, Teruo Ochi, Toshihiro Yamada, Christine D. Fletcher, Toshinori Okuda
  • Journal Title: Biotropica Volume: 46 Issue: 6 Pages: 720-731
  • DOI: 10.1111/btp.12158
  • Peer Reviewed
• [Journal Article] Impacts of Logging Road Networks on Dung Beetles and Small Mammals in a Malaysian Production Forest: Implications for Biodiversity Safeguards (2014)
  • Author(s): Toshihiro Yamada, Masahiro Niino, Satoru Yoshida, Tetsuro Hosaka, Toshinori Okuda
  • Journal Title: Land Volume: 3 Issue: 3 Pages: 639-657
  • DOI: 10.3390/land3030639
  • Peer Reviewed / Open Access
• [Journal Article] Diel flight activity and habitat preference of dung beetles (Coleoptera: Scarabaeidae) in Peninsular Malaysia (2014)
  • Author(s): Masahiro Niino, Tetsuro Hosaka, Masahiro Kon, Teruo Ochi, Toshihiro Yamada, Toshinori Okuda
  • Journal Title: Raffles Bulletin of Zoology Volume: 62 Pages: 795-804
  • Peer Reviewed / Open Access
• [Journal Article] Effects of logging road networks on the ecological functions of dung beetles in Peninsular Malaysia (2014)
  • Author(s): Hosaka, T., Niino, M., Kon, M., Ochi, T., Yamada, T., Fletcher, C., Okuda, T.
  • Journal Title: Forest Ecology and Management Volume: (in press) Pages: 18-24
  • DOI: 10.1016/j.foreco.2014.04.004
  • Peer Reviewed
• [Presentation] 2014年の一斉開花におけるShorea leprosula（フタバガキ科）の昆虫による種子食害率 (2018)
  • Author(s): 保坂哲朗
  • Organizer: 第28回日本熱帯生態学会
• [Presentation] フタバガキ科の種子は食われやすいか？熱帯雨林103樹種の虫害率比較 (2017)
  • Author(s): 保坂哲朗
  • Organizer: 第64回日本生態学会
  • Place of Presentation: 早稲田大学（東京都新宿区）
  • Year and Date: 2017-03-15
• [Presentation] 種子食昆虫は非一斉開花期をいかに生き延びるのか？ (2017)
  • Author(s): 保坂哲朗
  • Organizer: 第27回日本熱帯生態学会
• [Presentation] Frequencies of insect seed predators on dipterocarps and non-dipterocarps: an implication for predator satiation hypothesis (2016)
  • Author(s): Tetsuro Hosaka
  • Organizer: 第26回日本熱帯生態学会
  • Place of Presentation: 筑波大学（茨城県つくば市）
  • Year and Date: 2016-06-17
• [Presentation] Dipterocarp flora of Peninsular Malaysia: their floristic region and environmental correlates (2016)
  • Author(s): Numata, S., Hosaka, T., Hashim. M, Yamada, T., Tani, N., Tsumura, Y., Lee, S.L., Muhammad, N.
  • Organizer: 第63回日本生態学会
  • Place of Presentation: 仙台国際会議場
  • Year and Date: 2016-03-20
• [Presentation] 東南アジア熱帯雨林における樹木の繁殖フェノロジー (2016)
  • Author(s): 森本彩夏, 沼田真也, 保坂哲朗, Mazlan Hashim, 谷尚樹, 佐竹暁子, 市栄智明, Nashatul Zaimah Noor Azman, Noraliza Alias
  • Organizer: 第63回日本生態学会
  • Place of Presentation: 仙台国際会議場
  • Year and Date: 2016-03-20
• [Presentation] Sequential flowering of dipterocarps and pre-dispersal seed predation: which is better, early or late flowering? (2015)
  • Author(s): Hosaka, T., Yumoto, T., Chen, Y.Y., Sun, I. F., Wright, S. J., Numata, S., Nur Supardi, M. N.
  • Organizer: 第25回日本熱帯生態学会
  • Place of Presentation: 京都大学
  • Year and Date: 2015-06-19
• [Presentation] フタバガキ科樹木の繁殖フェノロジーは種によって応答する気象条件が異なるか？ (2015)
  • Author(s): 森本彩夏, 沼田真也, 保坂哲朗, Mazlan Hashim, 谷尚樹, 佐竹暁子, 市栄智明, Nashatul Zaimah Noor Azman, Noraliza Alias
  • Organizer: 第126回森林学会
  • Place of Presentation: 北海道大学、札幌市
  • Year and Date: 2015-03-26 – 2015-03-29
• [Presentation] Identification of triggering climatic factors contributed to General Flowering event in Peninsular Malaysia using remote sensing utilities (2015)
  • Author(s): Azmy, M. M., Numata, S., Hosaka, T., Mazlan, H
  • Organizer: 第62回日本生態学会
  • Place of Presentation: 鹿児島大学、鹿児島市
  • Year and Date: 2015-03-18 – 2015-03-22
• [Presentation] Responses of insect seed predators to sequential flowering of dipterocarps in Peninsular Malaysia (2014)
  • Author(s): Tetsuro Hosaka, Takakazu Yumoto, Yu-Yun Chen, I-Fang Sun, S. Joseph Wright, Shinya Numata, Nur Supardi Md. Noor
  • Organizer: 51st Annual Meeting of the Association for Tropical Biology and Conservation
  • Place of Presentation: Cairns Convention Centre, Cairns, Australia
  • Year and Date: 2014-07-20 – 2014-07-24
• [Presentation] Interspecific comparison in reproductive phenology of dipterocarps using long-term flowering and fruiting data at FRIM (2014)
  • Author(s): Ayaka Morimoto, Shinya Numata, Tetsuro Hosaka, Mazlan Hashim, Naoki Tani, Akiko Satake, Tomoaki Ichie, Noraliza Alias, Nashatul Zaimah Noor Azman
  • Organizer: 51st Annual Meeting of the Association for Tropical Biology and Conservation
  • Place of Presentation: Cairns Convention Centre, Cairns, Australia
  • Year and Date: 2014-07-20 – 2014-07-24
• [Presentation] Dipterocarp flora of peninsular Malaysia: a preliminary analysis (2014)
  • Author(s): Shinya Numata, Tetsuro Hosaka, Naohiro Amemiya, Mazlan Hashim, Toshihiro Yamada, Naoki Tani, Yoshihiko Tsumura, Soon Leong Lee, Norwati Muhammad
  • Organizer: 51st Annual Meeting of the Association for Tropical Biology and Conservation
  • Place of Presentation: Cairns Convention Centre, Cairns, Australia
  • Year and Date: 2014-07-20
• [Remarks] 研究内容紹介
  • URL: http://home.hiroshima-u.ac.jp/hosaka3/