The response of an egg parasitoid to substrate-borne semiochemicals is affected by previous experience
| Autor: | Gianandrea Salerno, Ezio Peri, Takoua Slimani, Stefano Colazza, Antonino Cusumano, Francesca Frati, Eric Conti |
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| Přispěvatelé: | Peri, E., Salerno, G., Slimani, T., Frati, F., Conti, E., Colazza, S., Cusumano, A. |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
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 |
| Zdroj: | Scientific Reports Scientific Reports 6 (2016) Scientific Reports, 6 |
| ISSN: | 2045-2322 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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