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Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators

Many true parasites and parasitoids modify the behaviour of their host, and these changes are thought to be to the benefit of the parasites. However, field tests of this hypothesis are scarce, and it is often unclear whether the host or the parasite profits from the behavioural changes, or even if p...

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Autores principales: Grosman, Amir H., Janssen, Arne, de Brito, Elaine F., Cordeiro, Eduardo G., Colares, Felipe, Fonseca, Juliana Oliveira, Lima, Eraldo R., Pallini, Angelo, Sabelis, Maurice W.
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2008
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2386968/
https://www.ncbi.nlm.nih.gov/pubmed/18523578
http://dx.doi.org/10.1371/journal.pone.0002276
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author Grosman, Amir H.
Janssen, Arne
de Brito, Elaine F.
Cordeiro, Eduardo G.
Colares, Felipe
Fonseca, Juliana Oliveira
Lima, Eraldo R.
Pallini, Angelo
Sabelis, Maurice W.
author_facet Grosman, Amir H.
Janssen, Arne
de Brito, Elaine F.
Cordeiro, Eduardo G.
Colares, Felipe
Fonseca, Juliana Oliveira
Lima, Eraldo R.
Pallini, Angelo
Sabelis, Maurice W.
author_sort Grosman, Amir H.
collection PubMed
description Many true parasites and parasitoids modify the behaviour of their host, and these changes are thought to be to the benefit of the parasites. However, field tests of this hypothesis are scarce, and it is often unclear whether the host or the parasite profits from the behavioural changes, or even if parasitism is a cause or consequence of the behaviour. We show that braconid parasitoids (Glyptapanteles sp.) induce their caterpillar host (Thyrinteina leucocerae) to behave as a bodyguard of the parasitoid pupae. After parasitoid larvae exit from the host to pupate, the host stops feeding, remains close to the pupae, knocks off predators with violent head-swings, and dies before reaching adulthood. Unparasitized caterpillars do not show these behaviours. In the field, the presence of bodyguard hosts resulted in a two-fold reduction in mortality of parasitoid pupae. Hence, the behaviour appears to be parasitoid-induced and confers benefits exclusively to the parasitoid.
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spelling pubmed-23869682008-06-04 Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators Grosman, Amir H. Janssen, Arne de Brito, Elaine F. Cordeiro, Eduardo G. Colares, Felipe Fonseca, Juliana Oliveira Lima, Eraldo R. Pallini, Angelo Sabelis, Maurice W. PLoS One Research Article Many true parasites and parasitoids modify the behaviour of their host, and these changes are thought to be to the benefit of the parasites. However, field tests of this hypothesis are scarce, and it is often unclear whether the host or the parasite profits from the behavioural changes, or even if parasitism is a cause or consequence of the behaviour. We show that braconid parasitoids (Glyptapanteles sp.) induce their caterpillar host (Thyrinteina leucocerae) to behave as a bodyguard of the parasitoid pupae. After parasitoid larvae exit from the host to pupate, the host stops feeding, remains close to the pupae, knocks off predators with violent head-swings, and dies before reaching adulthood. Unparasitized caterpillars do not show these behaviours. In the field, the presence of bodyguard hosts resulted in a two-fold reduction in mortality of parasitoid pupae. Hence, the behaviour appears to be parasitoid-induced and confers benefits exclusively to the parasitoid. Public Library of Science 2008-06-04 /pmc/articles/PMC2386968/ /pubmed/18523578 http://dx.doi.org/10.1371/journal.pone.0002276 Text en Grosman et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Grosman, Amir H.
Janssen, Arne
de Brito, Elaine F.
Cordeiro, Eduardo G.
Colares, Felipe
Fonseca, Juliana Oliveira
Lima, Eraldo R.
Pallini, Angelo
Sabelis, Maurice W.
Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators
title Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators
title_full Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators
title_fullStr Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators
title_full_unstemmed Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators
title_short Parasitoid Increases Survival of Its Pupae by Inducing Hosts to Fight Predators
title_sort parasitoid increases survival of its pupae by inducing hosts to fight predators
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2386968/
https://www.ncbi.nlm.nih.gov/pubmed/18523578
http://dx.doi.org/10.1371/journal.pone.0002276
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