The Argentine ant, Linepithema humile (Hymenoptera: Formicidae: Dolichoderinae) is sensitive to semiochemicals involved in the spacing behaviour in the bird cherry-oat aphid Rhopalosiphum padi (Sternorrhyncha: Aphididae)

Title:

The Argentine ant, Linepithema humile (Hymenoptera: Formicidae: Dolichoderinae) is sensitive to semiochemicals involved in the spacing behaviour in the bird cherry-oat aphid Rhopalosiphum padi (Sternorrhyncha: Aphididae)

Creator:

Córdova-Yamauchi, Leslie, Gianoli, Ernesto, Quiroz, Andrés, and Niemeyer, Hermann M.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:f120445f-6f7a-47b8-a9da-7d2fcb7b059b
uuid:f120445f-6f7a-47b8-a9da-7d2fcb7b059b

Subject:

Aphididae, Formicidae, semiochemicals, spacing behaviour, olfactometry, Argentine ant, and aphid tending

Type:

article, model:article, and TEXT

Description:

The behavioural response of an aphid-tending ant, the Argentine ant Linepithema humile, to semiochemicals related with spacing behaviour in the aphid Rhopalosiphum padi (L.) was evaluated. The compounds involved were 6-methyl-5-hepten-2-one (MHO), 6-methyl-5-hepten-2-ol (MHOH), and 2-tridecanone (2-T). Hexane solutions of these semiochemicals either singly or mixed, and extracts obtained by trapping volatile compounds from wheat seedlings either alone or infested with two different densities of aphids were used as stimuli in olfactometric bioassays. Ants showed attraction to volatile extracts from plants infested at both densities, and slightly preferred volatile compounds from lightly over heavily infested plants in a choice test. On the other hand, while a dose-dependent repellence response was elicited by the naturally-occurring mixture of MHO, MHOH and 2-T, single compounds did not elicit significant responses in olfactometric bioassays. The function of these semiochemicals as indicators of quality of the aphid colonies as trophic resource to ants is discussed.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 1998 Volume:95 | Number:4

Harvested from:

CDK

Metadata only:

false