Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons

One of the most studied and best-known mutualistic relationships between insects is that between ants and phloem-feeding insects. Ants feed on honeydew excreted by phloem-feeding insects and, in exchange, attack the phloem feeders’ natural enemies, including parasitic wasps. However, parasitic w...

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Autores principales: Mouratidis, Angelos, Vacas, Sandra, Herrero-Schell, Julieta, Navarro-Llopis, Vicente, Marcel, Dicke, Tena, Alejandro
Formato: article
Lenguaje:Inglés
Publicado: Royal Society 2021
Materias:
Acceso en línea:http://hdl.handle.net/20.500.11939/6929
https://royalsocietypublishing.org/doi/10.1098/rspb.2020.1684
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author Mouratidis, Angelos
Vacas, Sandra
Herrero-Schell, Julieta
Navarro-Llopis, Vicente
Marcel, Dicke
Tena, Alejandro
author_browse Herrero-Schell, Julieta
Marcel, Dicke
Mouratidis, Angelos
Navarro-Llopis, Vicente
Tena, Alejandro
Vacas, Sandra
author_facet Mouratidis, Angelos
Vacas, Sandra
Herrero-Schell, Julieta
Navarro-Llopis, Vicente
Marcel, Dicke
Tena, Alejandro
author_sort Mouratidis, Angelos
collection ReDivia
description One of the most studied and best-known mutualistic relationships between insects is that between ants and phloem-feeding insects. Ants feed on honeydew excreted by phloem-feeding insects and, in exchange, attack the phloem feeders’ natural enemies, including parasitic wasps. However, parasitic wasps are under selection to exploit information on hazards and avoid them. Here, we tested whether parasitic wasps detect the previous presence of ants attending colonies of phloem feeders. Behavioural assays demonstrate thatwasps left colonies previously attended by ants more frequently than control colonies. This behaviour has a potential cost for the parasitic wasp as females inserted their ovipositor in fewer hosts per colony. In a further bioassay, wasps spent less time on papers impregnated with extracts of the ant cues than on control papers. Gas chromatography coupled withmass spectrometry analyses demonstrated that ants left a blend of cuticular hydrocarbons when they attended colonies of phloem feeders. These cuticular hydrocarbons are deposited passively when ants search for food. Overall, these results suggest, for the first time, that parasitic wasps of honeydew producers detect the previous presence of mutualistic ants through contact infochemicals. We anticipate such interactions to be widespread and to have implications in numerous ecosystems, as phloem feeders are usually tended by ants.
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spelling ReDivia69292025-04-25T14:47:57Z Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons Mouratidis, Angelos Vacas, Sandra Herrero-Schell, Julieta Navarro-Llopis, Vicente Marcel, Dicke Tena, Alejandro Enemy avoidance Infochemicals Hazard cues Phloem-feeding insects Cuticular hydrocarbons H10 Pests of plants One of the most studied and best-known mutualistic relationships between insects is that between ants and phloem-feeding insects. Ants feed on honeydew excreted by phloem-feeding insects and, in exchange, attack the phloem feeders’ natural enemies, including parasitic wasps. However, parasitic wasps are under selection to exploit information on hazards and avoid them. Here, we tested whether parasitic wasps detect the previous presence of ants attending colonies of phloem feeders. Behavioural assays demonstrate thatwasps left colonies previously attended by ants more frequently than control colonies. This behaviour has a potential cost for the parasitic wasp as females inserted their ovipositor in fewer hosts per colony. In a further bioassay, wasps spent less time on papers impregnated with extracts of the ant cues than on control papers. Gas chromatography coupled withmass spectrometry analyses demonstrated that ants left a blend of cuticular hydrocarbons when they attended colonies of phloem feeders. These cuticular hydrocarbons are deposited passively when ants search for food. Overall, these results suggest, for the first time, that parasitic wasps of honeydew producers detect the previous presence of mutualistic ants through contact infochemicals. We anticipate such interactions to be widespread and to have implications in numerous ecosystems, as phloem feeders are usually tended by ants. 2021-01-08T07:43:04Z 2021-01-08T07:43:04Z 2021 article publishedVersion Mouratidis, A, Vacas, S, Herrero, J, Navarro-Llopis, V., Dicke, M. & Tena, A. (2021) Parasitic wasps avoid ant-protected hemipteran hosts via the detection of ant cuticular hydrocarbons. Proc. R. Soc. B 288: 20201684. http://hdl.handle.net/20.500.11939/6929 10.1098/rspb.2020.1684 https://royalsocietypublishing.org/doi/10.1098/rspb.2020.1684 en info:eu-repo/grantAgreement/MINECO/Programa estatal de i+D+i Orientada a los Retos de la Sociedad/RTA2017-00095-00-00//Mejora de la gestión integrada de pseudocóccidos en cítricos y caqui RTA2017-00095 openAccess Royal Society impreso
spellingShingle Enemy avoidance
Infochemicals
Hazard cues
Phloem-feeding insects
Cuticular hydrocarbons
H10 Pests of plants
Mouratidis, Angelos
Vacas, Sandra
Herrero-Schell, Julieta
Navarro-Llopis, Vicente
Marcel, Dicke
Tena, Alejandro
Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons
title Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons
title_full Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons
title_fullStr Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons
title_full_unstemmed Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons
title_short Parasitic wasps avoid ant-protected hemipteran hosts via detection of ant cuticular hydrocarbons
title_sort parasitic wasps avoid ant protected hemipteran hosts via detection of ant cuticular hydrocarbons
topic Enemy avoidance
Infochemicals
Hazard cues
Phloem-feeding insects
Cuticular hydrocarbons
H10 Pests of plants
url http://hdl.handle.net/20.500.11939/6929
https://royalsocietypublishing.org/doi/10.1098/rspb.2020.1684
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