Factors affecting the patch-leaving decision of the parasitic wasp Diadegma semiclausum (Hymenoptera: Ichneumonidae)
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概要
- 論文の詳細を見る
We studied factors affecting the patch-leaving decision of the parasitic wasp Diadegma semiclausum, a parasitoid of diamondback moth (Plutella xylostella) larvae. Experiments were performed in a wind tunnel. We focused on two factors: (1) volatiles from host-food plants (infested or uninfested by hosts) upwind of the patch, and (2) the condition of the currently inhabited patch (the leaf). Irrespective of the upwind odor source, the wasp stayed longer on the infested patch than on the intact patch. The presence or absence of host larvae in the infested patch did not affect the time spent in the patch. Further, we found that the wasp used plural cues in the currently inhabited patch in their patchleaving decision. Factors affecting the patch-leaving decision of the parasitic wasp were discussed in tritrophic contexts.
- 日本応用動物昆虫学会の論文
- 2003-05-25
著者
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Takabayashi Junji
Center For Ecological Research Kyoto University
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Takabayashi Junji
Center For Ecological Res. Kyoto Univ.
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Takafuji Akio
Laboratory Of Ecological Information Graduate School Of Agriculture Kyoto University
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OHARA Yoshitsugu
Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University
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Takafuji Akio
Laboratory Of Ecological Information Gaduate School Of Agriculture Kyoto University
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Ohara Yoshitsugu
Laboratory Of Ecological Information Graduate School Of Agriculture Kyoto University
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