Author: YAFUSO, MASAKO

Source: Environmental Entomology, Volume 22, Number 3, June 1993 , pp. 601-606(6)

Publisher: Entomological Society of America

Abstract:

Alocasia odora C. Koch, a hermaphroditic understory clonal herb, showed endogenous heat production during its blooming sequence. The first heat production cycle was associated with the initiation of the female phase and the third or the fourth cycle was associated with the male phase. Two flower-breeding flies, Colocasiomyia alocasiae (Okada) and C. xenalocasiae (Okada) (Diptera: Drosophilidae), were attracted by the strong odor that emanated from A. odora. The flies carried pollen from other inflorescences thus affecting the reproductive success of the female phase of the hermaphroditic host. The flies stayed within the flowers, eating pollen during the subsequent male phase, then exited the inflorescence carrying pollen to other inflorescences, thus affecting reproductive success of the male phase. These flower-breeding flies increased the efficiency of the alternating reproductive tactics of the protogynous host plant. The special odor that emanated from the host during heat production may serve as an important stimulus for the two pollinator species to locate their host inflorescences.

Document Type: Research article

Publication date: 1993-06-01

More about this publication?

• Environmental Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment and is divided into the following sections: physiological ecology; chemical ecology; population ecology; quantitative ecology; community and ecosystem ecology; biological control­-parasitoids and predators; biological control--microbials; biological control--weeds; behavior; pest management; sampling; plant-insect interactions; molecular ecology and evolution; transgenic plants and insects. In addition to research papers, Environmental Entomology publishes Letters to the Editor, interpretive articles in a Forum section, and Book Reviews.
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