How do insect seed predators adapt to general flowering in Southeast Asian tropical rainforests?
Project/Area Number |
24870022
|
Research Category |
Grant-in-Aid for Research Activity Start-up
|
Allocation Type | Single-year Grants |
Research Field |
Ecology/Environment
|
Research Institution | Tokyo Metropolitan University |
Principal Investigator |
HOSAKA Tetsuro 首都大学東京, 都市環境科学研究科, 助教 (50626190)
|
Project Period (FY) |
2012-08-31 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
Keywords | 植物―昆虫相互作用 / フタバガキ / ゾウムシ / 種子食者飽食仮説 / マレーシア / 生態学 / 植物 / 昆虫 / 進化 / 熱帯雨林 / フタバガキ科 / 国際研究者交流 |
Research Abstract |
Dipterocarp trees in Southeast Asia are known to flower and fruit every 2 to 10 years. In the present study, how insect seed predators on dipterocarps adapt to the largely fluctuated seed production of dipterocarps was examined. Molecular phylogeny of the seed weevils showed that closely-related weevils did not always use closely-related dipterocarp species. This implies that weevils might have altered or expanded their hosts to deal with the unpredictable seeding phenology. Also, there were two types of weevil larvae in seeds of dipterocarps; one emerged as adults soon after fruit-fall while the other remains as larvae more than one years. This implies that some larvae have dormancy to survive during non-fruiting period.
|
Report
(3 results)
Research Products
(7 results)
-
[Journal Article] Effects of logging road networks on the ecological functions of dung beetles in Peninsular Malaysia2014
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
Related Report
Peer Reviewed
-
-
[Journal Article] Geographical pattern and environmental correlates of regional-scale general flowering in Peninsular Malaysia2013
Author(s)
Numata, S., Yasuda, M., Suzuki, R.O., Hosaka, T., Nur Supardi, M.N., Fletcher, & Hashim, M
-
Journal Title
PLoS ONE
Volume: 8(11)
Issue: 11
Pages: e79095-e79095
DOI
Related Report
Peer Reviewed
-
-
-
-