日本生態学会大会講演要旨集
The 52nd Annual Meeting of the Ecological Society of Japan
セッションID: L3-1
会議情報
Complex Chemical Information Networks in Tritrophic Communities
*Junji Takabayashi
著者情報
会議録・要旨集 フリー

詳細
抄録

In response of damage by herbivores, plants are known to emit volatiles that enhance the effectiveness of carnivorous natural enemies of herbivores. Studies on plant-carnivore interactions mediated by such infochemicals have focused on tritrophic systems in which plants are infested by a single herbivore species. In natural ecosystems, however, plants are often simultaneously infested by several herbivorous species. Here, we focus on two herbivore species that simultaneously attack crucifer plants, and their respective specialist parasitic wasps. We first show the specific responses of the two specialist parasitic wasps to infochemicals originated from cabbage plants infested by each of their respective host larvae. We then coupled the two tritrophic systems on the same plants. These experiments demonstrated the presence of indirect interactions between the two herbivore species. Overall, the results indicate the presence of infochemical-mediated indirect interaction networks on a single plant, and a filed community of herbivores can be better understood from the perspective of such interaction networks.

著者関連情報
© 2005 The Ecological Society of Japan
前の記事 次の記事
feedback
Top