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The response of an egg parasitoid to substrate-borne semiochemicals is affected by previous experience
- Source :
- Scientific Reports, Scientific Reports 6 (2016), Scientific Reports, 6
- Publication Year :
- 2016
- Publisher :
- Nature Publishing Group, 2016.
-
Abstract
- Animals can adjust their behaviour according to previous experience gained during foraging. In parasitoids, experience plays a key role in host location, a hierarchical process in which air-borne and substrate-borne semiochemicals are used to find hosts. In nature, chemical traces deposited by herbivore hosts when walking on the plant are adsorbed by leaf surfaces and perceived as substrate-borne semiochemicals by parasitoids. Chemical traces left on cabbage leaves by adults of the harlequin bug (Murgantia histrionica) induce an innate arrestment response in the egg parasitoid Trissolcus brochymenae characterized by an intense searching behaviour on host-contaminated areas. Here we investigated whether the T. brochymenae response to host walking traces left on leaf surfaces is affected by previous experience in the context of parasitoid foraging behaviour. We found that: 1) an unrewarded experience (successive encounters with host-contaminated areas without successful oviposition) decreased the intensity of the parasitoid response; 2) a rewarded experience (successful oviposition) acted as a reinforcing stimulus; 3) the elapsed time between two consecutive unrewarded events affected the parasitoid response in a host-gender specific manner. The ecological role of these results to the host location process of egg parasitoids is discussed.
- Subjects :
- 0106 biological sciences
Trissolcus basalis
Long-Term-Memory
Nezara viridula
Searching Efficiency
Foraging Behavior
Infochemical Use
Natural enemies
Male
Oviposition
Foraging
Wasps
Brassica
Biology
010603 evolutionary biology
01 natural sciences
Article
Pheromones
Parasitoid
Host-Parasite Interactions
TRISSOLCUS BASALIS
Heteroptera
Reward
Animals
Herbivory
Laboratory of Entomology
Herbivore
Appetitive Behavior
Sex Characteristics
Multidisciplinary
LONG-TERM-MEMORY, NEZARA VIRIDULA, SEARCHING EFFICIENCY, TRISSOLCUS BASALIS, FORAGING BEHAVIOR, INFOCHEMICAL USE, NATURAL ENEMIES
Ecology
017-4017
fungi
Trissolcus basali
biology.organism_classification
Laboratorium voor Entomologie
Plant Leaves
010602 entomology
Settore AGR/11 - Entomologia Generale E Applicata
Female
Subjects
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Scientific Reports
- Accession number :
- edsair.doi.dedup.....1f5d13ac49f6938ed098890bb30464b9