Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts

An appraisal of the regulatory role of natural enemies on target pests requires the identification of the mechanisms/traits that enhance the ability of an organism to control the density of its prey/host. After stinging herbivore hosts with their ovipositor, hymenopteran parasitoids tend to reject t...

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Autores principales: Cebolla, Ruth, Vanaclocha, Pilar, Urbaneja, Alberto, Tena, Alejandro
Formato: Artículo preliminar
Lenguaje:Inglés
Publicado: Springer 2017
Acceso en línea:http://hdl.handle.net/20.500.11939/5725
https://link.springer.com/article/10.1007/s10340-017-0901-9
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author Cebolla, Ruth
Vanaclocha, Pilar
Urbaneja, Alberto
Tena, Alejandro
author_browse Cebolla, Ruth
Tena, Alejandro
Urbaneja, Alberto
Vanaclocha, Pilar
author_facet Cebolla, Ruth
Vanaclocha, Pilar
Urbaneja, Alberto
Tena, Alejandro
author_sort Cebolla, Ruth
collection ReDivia
description An appraisal of the regulatory role of natural enemies on target pests requires the identification of the mechanisms/traits that enhance the ability of an organism to control the density of its prey/host. After stinging herbivore hosts with their ovipositor, hymenopteran parasitoids tend to reject them without ovipositing or host-feeding. Termed pseudoparasitism, the frequency and consequences of this type of attack (hereafter oversting) have been largely disregarded in the hymenopteran parasitoid literature. We choose the parasitoids Aphytis melinus and A. chrysomphali and their common host Aonidiella aurantii as a model system to study this behavior. Using field and laboratory observations, we showed that overstinging is a common behavior in the wild. Under controlled conditions, overstinging occurred more frequently than host-feeding, a behavioral trait that is used to evaluate the potential of parasitoids as biological control agents. Oversting reduced the fecundity and survival of the herbivore host. When we compared between parasitoid species that attack the same host species, the virulence and frequency of this behavior depended on parasitoid species. These results demonstrate that overstinging should be incorporated in the models of host–parasitoid interactions to analyze population dynamics as well as in the future selection of parasitoids for biological control.
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institution Instituto Valenciano de Investigaciones Agrarias (IVIA)
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spelling ReDivia57252025-04-25T14:45:52Z Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts Cebolla, Ruth Vanaclocha, Pilar Urbaneja, Alberto Tena, Alejandro An appraisal of the regulatory role of natural enemies on target pests requires the identification of the mechanisms/traits that enhance the ability of an organism to control the density of its prey/host. After stinging herbivore hosts with their ovipositor, hymenopteran parasitoids tend to reject them without ovipositing or host-feeding. Termed pseudoparasitism, the frequency and consequences of this type of attack (hereafter oversting) have been largely disregarded in the hymenopteran parasitoid literature. We choose the parasitoids Aphytis melinus and A. chrysomphali and their common host Aonidiella aurantii as a model system to study this behavior. Using field and laboratory observations, we showed that overstinging is a common behavior in the wild. Under controlled conditions, overstinging occurred more frequently than host-feeding, a behavioral trait that is used to evaluate the potential of parasitoids as biological control agents. Oversting reduced the fecundity and survival of the herbivore host. When we compared between parasitoid species that attack the same host species, the virulence and frequency of this behavior depended on parasitoid species. These results demonstrate that overstinging should be incorporated in the models of host–parasitoid interactions to analyze population dynamics as well as in the future selection of parasitoids for biological control. 2017-08-03T16:29:40Z 2017-08-03T16:29:40Z 2017 acceptedVersion Cebolla, R.; Vanaclocha, P.; Urbaneja, A.; Tena, A. (2018). Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts. Journal of Pest Science, 91(1), 327-339. 1612-4766 http://hdl.handle.net/20.500.11939/5725 10.1007/s10340-017-0901-9 https://link.springer.com/article/10.1007/s10340-017-0901-9 en Info:eu-repo/grantAgreement/MINECO/Programa Nacional de Investigación Fundamental/AGL-2011-30538-C03-02 AGL2011-30538-C03-02 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Springer electronico
spellingShingle Cebolla, Ruth
Vanaclocha, Pilar
Urbaneja, Alberto
Tena, Alejandro
Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts
title Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts
title_full Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts
title_fullStr Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts
title_full_unstemmed Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts
title_short Overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts
title_sort overstinging by hymenopteran parasitoids causes mutilation and surplus killing of hosts
url http://hdl.handle.net/20.500.11939/5725
https://link.springer.com/article/10.1007/s10340-017-0901-9
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