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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...
Symbiotic bacteria can act to protect their host against natural enemies. Where this protection is asymmetric against different natural enemies, protection conferred by symbionts has the potential to mediate interactions between natural enemies, as well as between enemies and the host.
In pea aphids (Acyrthosiphon pisum), resistance against parasitoid wasps can be conferred by facultative symbiotic...
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