A comparative functional approach to the host detection behaviour of parasitic wasps. II. A quantitative study on eight eucoilid species

L.E.M. Vet, K. Bakker

Onderzoeksoutput: Bijdrage aan wetenschappelijk tijdschrift/periodieke uitgaveArtikelWetenschappelijkpeer review

22 Downloads (Pure)

Samenvatting

This paper reports on a comparative study of the host detection behaviour of 8 para- sitoid species belonging to three eucoilid genera. They attack larvae of Drosophilidae in different microhabitats. We measured behavioural variables such as time allocation to components like 'probing the substrate', 'walking' and 'standing still', frequency and duration of and variation in 'probes' and 'walks', searching efficiency and be- havioural reaction to host movement. Variation in several variables is largely con- gruent with the systematic classification of the species in the three genera, and is cor- related with the role different stimuli play in actual host location. There is a signifi- cant positive correlation between the percentage of time spent standing still and the percentage of hosts found through the sensing of host movement. Species that locate their hosts mainly by sensing host movement (Ganapsis spp.) spend most of their time standing still and use their ovipositor in a different way than species that mainly locate their hosts by regularly probing the substrate (Leptopilina spp.). Kleidotoma spp. use a combination of these two stimuli and so show a combined, more complex behaviour. Differences were also found between species of one genus and between strains of one species. Although in general the type of substrate females normally search on or the kind of host species that they attack does not seem to have influenced the searching be- haviour, some small differences between species could be considered adaptations to different environmental conditions. Different species that attack the same host spe- cies in the same microhabitat show great differences in host detection behaviour. For these parasitoid species this may provide a means by which they can coexist.
Originele taal-2Engels
Pagina's (van-tot)487-498
TijdschriftOikos
Volume44
Nummer van het tijdschrift3
DOI's
StatusGepubliceerd - 1985
Extern gepubliceerdJa

Vingerafdruk

Duik in de onderzoeksthema's van 'A comparative functional approach to the host detection behaviour of parasitic wasps. II. A quantitative study on eight eucoilid species'. Samen vormen ze een unieke vingerafdruk.
  • Keur

    van der Heijden, M.

    01/01/1980 → …

    Project: Onderzoek

Citeer dit