The parasitoid Cotesia glomerata lays her eggs inside a caterpillar, and learns to remember the odours from the plant on which the caterpillars were found

PhD defence

Information reliability shaping parasitoid foraging behaviour

ms. JAC (Jessica) de Bruijn MSc

PhD candidate ms. JAC (Jessica) de Bruijn MSc
Promotor LEM (Louise) Vet
Co-promotor dr. HM (Hans) Smid
Co-promotor dr ir JG de Boer
Organisation Wageningen University, Laboratory of Entomology
Date

Tue 4 February 2020 16:00 to 17:30

Venue Auditorium, building number 362
Generaal Foulkesweg 1
362
6703 BG Wageningen
0317-483592

Summary:

Parasitoid wasps lay their eggs in insect hosts, which they need to find in complex and dynamic natural environments. Through learning they can gather information on local conditions, such as the plant species on which hosts occur, and they can subsequently adapt their foraging behaviour according to this learned information to improve their host searching efficiency. This obtained information may, however, not always correctly predict host presence on these plants and may cause them to find unsuitable host species, i.e. non-hosts. In this thesis project, we studied how such unreliable information shaped the foraging behaviour of the parasitoid Cotesia glomerata. Through the development of advanced observation set-ups and methods, to track individually foraging parasitoid in the laboratory and the field, this thesis provides new insights on the effect of information-reliability on parasitoid foraging behaviour. This knowledge may be beneficial for the improvement of foraging models and biological control methods.