Distribution, abundance and host association of two parasitoid species attacking frugivorous drosophilid larvae in central Japan

Title:

Distribution, abundance and host association of two parasitoid species attacking frugivorous drosophilid larvae in central Japan

Creator:

Mitsui, Hideyuki and Kimura, Masahito T.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:e7586269-16a6-4dc0-9b2f-567d1b1c5e5d
uuid:e7586269-16a6-4dc0-9b2f-567d1b1c5e5d

Subject:

Hymenoptera, Asobara japonica, Ganaspis xanthopoda, parasitoids, drosophilid flies, abundance, distribution, coevolution, and host association

Type:

article, model:article, and TEXT

Description:

In central Japan Ganaspis xanthopoda and Asobara japonica commonly parasitize the larvae of frugivorous drosophilids, mainly in montane forests, and urban environments and small groves, respectively. These two parasitoids start reproduction about one month later than their host drosophilids, probably to avoid searching for hosts when host density is low in early spring. It is likely that the local variation in the abundance of these parasitoids and a temporal refuge for their hosts contribute to the persistence of this parasitoid-host community. The forest species, G. xanthopoda, parasitized at least three Drosophila species that are abundant in forests, supporting the hypothesis that parasitoids are better adapted to attack frequently-encountered host species. This parasitoid did not parasitize drosophilid species that are phylogenetically distantly-related to the three host species or less frequent in forests. Benefits of using such species as host would not exceed the costs of evolving virulence to them. Another parasitoid, A. japonica, parasitized various indigenous and exotic drosophilid species including those that it rarely encountered in the field. It is not clear why this species has such a wide host range.

Language:

English

Rights:

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

Source:

European Journal of Entomology | 2010 Volume:107 | Number:4

Harvested from:

CDK

Metadata only:

false