Pollination mutualism between Alocasia macrorrhizos (Araceae) and two taxonomically undescribed Colocasiomyia species (Diptera: Drosophilidae) in Sabah, Borneo

Takano, Kohei Takenaka; Repin, Rimi; Mohamed, Dartin Maryati Bte; Toda, Masanori J.

Pollination mutualism between Alocasia macrorrhizos (Araceae) and two taxonomically undescribed Colocasiomyia species (Diptera: Drosophilidae) in Sabah, Borneo

Takano, Kohei Takenaka; Repin, Rimi; Mohamed, Dartin Maryati Bte et al.

Plant Biology, 2012, 14(4), 555-564

Permalink : https://hdl.handle.net/2115/52975

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アクセス権	open access
URI	https://hdl.handle.net/2115/52975
タイトル	Pollination mutualism between Alocasia macrorrhizos (Araceae) and two taxonomically undescribed Colocasiomyia species (Diptera: Drosophilidae) in Sabah, Borneo
著者	Takano, Kohei Takenaka ; Repin, Rimi ; Mohamed, Dartin Maryati Bte ; Toda, Masanori J.
著者名 Takano, Kohei Takenaka
著者名 Repin, Rimi
著者名 Mohamed, Dartin Maryati Bte
e-Rad_Researcher 40113592 著者名 Toda, Masanori J.
言語	英語
キーワード	Colocasiomyia sp.1 aff. sulawesiana
	Colocasiomyia sp.2 aff. sulawesiana
	Kota Kinabalu
	life history
	pistilicolous species
	pollination experiment
発行日	2012-07
出版者	Wiley-Blackwell
収録物名	Plant Biology
巻(号)	14(4)
ページ	555-564
抄録	Two taxonomically undescribed Colocasiomyia species were discovered from inflorescences of Alocasia macrorrhizos in Kota Kinabalu City, Sabah, Borneo, Malaysia. The aims of this study were to investigate the reproductive ecology of the flies and the plant, ascertain the importance of the flies as pollinators and examine the intimate association between flowering events and life history of the flies. We conducted sampling, observations and field pollination experiments. The flies were attracted by the odour of female-phase inflorescences in the early morning on the first day of anthesis. They fed, mated and oviposited in the inflorescences for one day. On the second day, the flies, covered with pollen grains, left the male-phase inflorescences for the next female-phase inflorescences. The immatures of both fly species hatched, developed and pupated within the infructescences without damaging the fruits and developed adults emerged when the mature infructescences dehisced. The flowering events and fly behaviours were well synchronized. In the field pollination experiments, the inflorescences bagged with a fine mesh (insect exclusion) produced almost no fruits, whereas those bagged with a coarse mesh (bee exclusion) produced as many fruits as the open-pollinated controls. These results indicate that the flies are the most efficient and specialised pollinators for their host, A. macrorrhizos. These flies, in return, depend on A. macrorrhizos for food and habitat through most of their life cycle. This study provides a deeper insight into the less recognised, highly intimate pollination mutualism between Araceae plants and Colocasiomyia flies.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	The definitive version is available at www.onlinelibrary.wiley.com
PISSN	1435-8603
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1111/j.1438-8677.2011.00541.x