Frago Enric, Pujade-Villar Juli, Guara Miguel, Selfa Jesús. 2012. Hyperparasitism and seasonal patterns of parasitism as potential causes of low top-down control in Euproctis chrysorrhoea (Lymantriidae). Biological Control, 60 (2) : 123-131.
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Version publiée
- Anglais
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Quartile : Q1, Sujet : ENTOMOLOGY / Quartile : Q3, Sujet : BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Liste HCERES des revues (en SHS) : oui
Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie
Résumé : Pest suppression is an important ecosystem service provided by biodiversity, though antagonistic interactions may jeopardize its impact on pest suppression. Hyperparasitoids may release herbivore populations from natural enemy pressure and lead to outbreaks directly due to parasitism as well as indirect through behavioural interference. In a previous study we reported that in native populations of Euproctis chrysorrhoea L. (Lymantriidae) primary parasitism was very low and outbreaks were more likely in coastal habitats than inland. Here we hypothesise that hyperparasitoids are the underlying cause of such patterns by reporting data on direct hyperparasitism rates as well as seasonal patterns of parasitoid attack. Of the 17 primary parasitoids attacking E. chrysorrhoea, three were found to be hyperparasitized. Hyperparasitoids attack the most important E. chrysorrhoea primary parasitoids which may explain the pattern of moth density in some habitats. Seasonal patterns of parasitoids attack and flight also help to understand antagonistic interactions among E. chrysorrhoea parasitoids. We discuss the implications of our work in the context of pest control in diverse ecosystems.
Mots-clés libres : Behavioural interference, Browntail moth, Diversity, Forest pest control, Hyperparasitism
Auteurs et affiliations
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Frago Enric, Oxford University (GBR)
ORCID: 0000-0001-8817-1303 - auteur correspondant
- Pujade-Villar Juli, Universitat de Barcelona (ESP)
- Guara Miguel, Universidad de Valencia (ESP)
- Selfa Jesús, Universidad de Valencia (ESP)
Source : Cirad-Agritrop (https://agritrop.cirad.fr/603744/)
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