Host discrimination in Dinocampus coccinellae (Hymenoptera: Braconidae), a solitary parasitoid of coccinellid beetles
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概要
- 論文の詳細を見る
The ability of a solitary parasitoid, Dinocampus coccinellae (Schrank) to discriminate between a parasitized and unparasitized host, Coccinella septempunctata L. (Coleoptera: Coccinellidae) was tested in the laboratory. A D. coccinellae female wasp was placed together with a host beetle and allowed to parasitize 3 successive times, and the time interval between these parasitizations was measured. The wasp successfully parasitized the host within 25s on average and avoided superparasitism for 155s after the 1st parasitization. The period of rejection between the 2nd and 3rd parasitization further extended to about 4 min. Furthermore, the behavioral pattern of a parasitoid wasp and 3 host beetles monitored by a video camera confirmed the host discrimination of D. coccinellae. The wasp was unable to discriminate a host recently parasitized by her genetically identical sister. A possible reason for weak host discrimination of D. coccinellae is discussed.
- 日本応用動物昆虫学会の論文
- 2000-11-25
著者
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OKUDA Takashi
Department of Insect Physiology and Behavior, National Institute of Sericultural and Entomological S
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Ceryngier Piotr
Institute Of Ecology Polish Academy Of Sciences
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Okuda T
Department Of Insect Physiology And Behavior National Institute Of Sericultural And Entomological Sc
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Okuda Takashi
Department Of Applied Information Science And Technology Faculty Of Information Science And Technolo
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Okuda Takashi
International Centre Of Insect Physiology And Ecology(icipe)mbita Point Field Station(mpfs)
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