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Cascading effects of herbivore protective symbionts on hyperparasitoids [Ecological Entomology]

Keywords : aphid, hyperparasitoid, parasitoid, symbiont, symbiosis, trophic cascade

par Frédéric Magné - publié le , mis à jour le

1. Microbial symbionts can play an important role in defending their insect hosts against natural enemies. However, researchers have little idea how the presence of such protective symbionts impacts food web interactions and species diversity.
2. This study investigated the effects of a protective symbiont (Hamiltonella defensa) in pea aphids (Acyrthosiphon pisum) on hyperparasitoids, which are a trophic level above the natural enemy target of the symbiont (primary parasitoids).(...)

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