Enemy-induced dispersal in a parasitic wasp |
| |
| Authors: | C. Höller S. G. Micha S. Schulz W. Francke J. A. Pickett |
| |
| Affiliation: | (1) Institut für Phytopathologie, Universität Kiel, Hermann-Rodewald-Str. 9, D-24098 Kiel, Germany;(2) Institut für Organische Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg, Germany;(3) Rothamsted Experimental Station, IACR, AL5 2JQ Harpenden, Hertfordshire, England |
| |
| Abstract: | ![]()
Females of the parasitic waspAphidius uzbekistanicus, a specialist aphid primary parasitoid, react to the presence of their specialist hyperparasitoid enemyAlloxysta victrix by leaving the area. The wasps leave to increase their reproductive success, because only their offspring, but not the wasps themselves, are threatened by enemy attack. Furthermore, this dispersal is elicited through the action of volatile chemical cues produced by the hyperparasitoids. We provide evidence for 6-methyl-5-hepten-2-one being one of the volatiles eliciting dispersal. The tendency of the wasps to leave areas which are being colonized by their enemies reduces their efficiency as aphid antagonists. |
| |
| Keywords: | Parasitic wasp dispersal semiochemical escape behaviour reproductive success pheromone 6-methyl-5-hepten-2-one |
| 本文献已被 SpringerLink 等数据库收录！ |
|
