Intra- and interspecifichost discrimination in Asobara (Hymenoptera), larval endo-parasitoids of Drosophilidae: comparison between closely related and less related species

TY - JOUR

T1 - Intra- and interspecifichost discrimination in Asobara (Hymenoptera), larval endo-parasitoids of Drosophilidae: comparison between closely related and less related species

AU - Vet, L.E.M.

AU - Meyer, M.

AU - Bakker, K.

AU - van Alphen, J.J.M.

N1 - Reporting year: 1984 Metis note: 13550;article; knaw:24

PY - 1984

Y1 - 1984

N2 - Host discrimination studies were conducted with different species of Asobara, which are larval endo-parasitoids of Drosophilidae. Results indicated variable host discrimination which depended on the relatedness of the species. The closely related sibling species Asobara tabida (Nees) and A. rufescens (Foerster) were not only capable of intraspecific discrimination, but also avoided multiparasitism by discriminating between unparasitized host larvae and larvae previously parasitized by females of the other species. This ability to discriminate interspecifically does not seem functional as each species occupies its own microhabitat. As it was shown to be absent in less closely related Asobara species we concluded that interspecific discrimination by A. tabida and A. rufescens was due to their close relationship

AB - Host discrimination studies were conducted with different species of Asobara, which are larval endo-parasitoids of Drosophilidae. Results indicated variable host discrimination which depended on the relatedness of the species. The closely related sibling species Asobara tabida (Nees) and A. rufescens (Foerster) were not only capable of intraspecific discrimination, but also avoided multiparasitism by discriminating between unparasitized host larvae and larvae previously parasitized by females of the other species. This ability to discriminate interspecifically does not seem functional as each species occupies its own microhabitat. As it was shown to be absent in less closely related Asobara species we concluded that interspecific discrimination by A. tabida and A. rufescens was due to their close relationship

U2 - 10.1016/S0003-3472(84)80164-5

DO - 10.1016/S0003-3472(84)80164-5

M3 - Article

SN - 0003-3472

VL - 32

SP - 871

EP - 874

JO - Animal Behaviour

JF - Animal Behaviour

IS - 3

ER -