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Infochemical use and dietary specialization in parasitoids: a meta‐analysis
Many parasitoid species use olfactory cues to locate their hosts. In tritrophic systems, parasitoids of herbivores can exploit the chemical blends emitted by plants in reaction to herbivore‐induced damage, known as herbivore‐induced plant volatiles (HIPVs). In this study, we explored the specificity...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5496531/ https://www.ncbi.nlm.nih.gov/pubmed/28690809 http://dx.doi.org/10.1002/ece3.2888 |
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author | van Oudenhove, Louise Mailleret, Ludovic Fauvergue, Xavier |
author_facet | van Oudenhove, Louise Mailleret, Ludovic Fauvergue, Xavier |
author_sort | van Oudenhove, Louise |
collection | PubMed |
description | Many parasitoid species use olfactory cues to locate their hosts. In tritrophic systems, parasitoids of herbivores can exploit the chemical blends emitted by plants in reaction to herbivore‐induced damage, known as herbivore‐induced plant volatiles (HIPVs). In this study, we explored the specificity and innateness of parasitoid responses to HIPVs using a meta‐analysis of data from the literature. Based on the concept of dietary specialization and infochemical use, we hypothesized that (i) specialist parasitoids (i.e., with narrow host ranges) should be attracted to specific HIPV signals, whereas generalist parasitoids (i.e., with broad host ranges) should be attracted to more generic HIPV signals and (ii) specialist parasitoids should innately respond to HIPVs, whereas generalist parasitoids should have to learn to associate HIPVs with host presence. We characterized the responses of 66 parasitoid species based on published studies of parasitoid behavior. Our meta‐analysis showed that (i) as predicted, specialist parasitoids were attracted to more specific signals than were generalist parasitoids but, (ii) contrary to expectations, response innateness depended on a parasitoid's target host life stage rather than on its degree of host specialization: parasitoids of larvae were more likely to show an innate response to HIPVs than were parasitoids of adults. This result changes our understanding of dietary specialization and highlights the need for further theoretical research that will help clarify infochemical use by parasitoids. |
format | Online Article Text |
id | pubmed-5496531 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-54965312017-07-07 Infochemical use and dietary specialization in parasitoids: a meta‐analysis van Oudenhove, Louise Mailleret, Ludovic Fauvergue, Xavier Ecol Evol Original Research Many parasitoid species use olfactory cues to locate their hosts. In tritrophic systems, parasitoids of herbivores can exploit the chemical blends emitted by plants in reaction to herbivore‐induced damage, known as herbivore‐induced plant volatiles (HIPVs). In this study, we explored the specificity and innateness of parasitoid responses to HIPVs using a meta‐analysis of data from the literature. Based on the concept of dietary specialization and infochemical use, we hypothesized that (i) specialist parasitoids (i.e., with narrow host ranges) should be attracted to specific HIPV signals, whereas generalist parasitoids (i.e., with broad host ranges) should be attracted to more generic HIPV signals and (ii) specialist parasitoids should innately respond to HIPVs, whereas generalist parasitoids should have to learn to associate HIPVs with host presence. We characterized the responses of 66 parasitoid species based on published studies of parasitoid behavior. Our meta‐analysis showed that (i) as predicted, specialist parasitoids were attracted to more specific signals than were generalist parasitoids but, (ii) contrary to expectations, response innateness depended on a parasitoid's target host life stage rather than on its degree of host specialization: parasitoids of larvae were more likely to show an innate response to HIPVs than were parasitoids of adults. This result changes our understanding of dietary specialization and highlights the need for further theoretical research that will help clarify infochemical use by parasitoids. John Wiley and Sons Inc. 2017-05-25 /pmc/articles/PMC5496531/ /pubmed/28690809 http://dx.doi.org/10.1002/ece3.2888 Text en © 2017 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Research van Oudenhove, Louise Mailleret, Ludovic Fauvergue, Xavier Infochemical use and dietary specialization in parasitoids: a meta‐analysis |
title | Infochemical use and dietary specialization in parasitoids: a meta‐analysis |
title_full | Infochemical use and dietary specialization in parasitoids: a meta‐analysis |
title_fullStr | Infochemical use and dietary specialization in parasitoids: a meta‐analysis |
title_full_unstemmed | Infochemical use and dietary specialization in parasitoids: a meta‐analysis |
title_short | Infochemical use and dietary specialization in parasitoids: a meta‐analysis |
title_sort | infochemical use and dietary specialization in parasitoids: a meta‐analysis |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5496531/ https://www.ncbi.nlm.nih.gov/pubmed/28690809 http://dx.doi.org/10.1002/ece3.2888 |
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