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Alien interference: disruption of infochemical networks by invasive insect herbivores
Auteur(s)
Desurmont, Gaylord A.
Harvey, J.
van Dam, N. M.
Cristescu, S. M.
Schiestl, F. P.
Cozzolino, S.
Anderson, P.
Larsson, M. C.
Kindlmann, P.
Danner, H.
Date de parution
2014
In
Plant Cell and Environment
Vol.
8
No
37
De la page
1854
A la page
1865
Mots-clés
Résumé
Insect herbivores trigger various biochemical changes in plants, and as a consequence, affect other organisms that are associated with these plants. Such plant-mediated indirect effects often involve herbivore-induced plant volatiles (HIPVs) that can be used as cues for foraging herbivores and their natural enemies, and are also known to affect pollinator attraction. In tightly co-evolved systems, the different trophic levels are expected to display adaptive response to changes in HIPVs caused by native herbivores. But what if a new herbivore invades such a system? Current literature suggests that exotic herbivores have the potential to affect HIPV production, and that plant responses to novel herbivores are likely to depend on phylogenetic relatedness between the invader and the native species. Here we review the different ways exotic herbivores can disrupt chemically mediated interactions between plants and the key users of HIPVs: herbivores, pollinators, and members of the third (i.e. predators and parasitoids) and fourth (i.e. hyperparasitoids) trophic levels. Current theory on insect invasions needs to consider that disruptive effects of invaders on infochemical networks can have a short-term impact on the population dynamics of native insects and plants, as well as exerting potentially negative consequences for the functioning of native ecosystems.
Identifiants
Type de publication
journal article
