Enemy-induced dispersal in a parasitic wasp

Höller, C., Micha, S., Schulz, S., Francke, W. and Pickett, J. ORCID: https://orcid.org/0000-0002-8386-3770 1994. Enemy-induced dispersal in a parasitic wasp. Experientia 50 (2) , pp. 182-185. 10.1007/BF01984961

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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.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Chemistry
Publisher:	Elsevier
ISSN:	1420-682X
Date of Acceptance:	10 November 1993
Last Modified:	10 Feb 2026 17:00
URI:	https://orca.cardiff.ac.uk/id/eprint/184641

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