BERTHEAU, Coralie; BROCKERHOFF, Eckehard; ROUX-MORABITO, Geraldine; LIEUTIER, François; JACTEL, Herve

doi:10.1111/j.1461-0248.2010.01445.x

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BERTHEAU, Coralie
Institute of Forest Ecology, Universität für Bodenkultur [BOKU]

BROCKERHOFF, Eckehard

ROUX-MORABITO, Geraldine
Unité de recherche Zoologie Forestière [URZF]

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Ecology Letters. 2010-04, vol. 13, n° 4, p. 506 - 515

Wiley

Resumen en inglés

The translocation of species beyond their native range is a major threat to biodiversity. Invasions by tree-feeding insects attacking native trees and the colonization of introduced trees by native insects result in new insect–tree relationships. To date there is uncertainty about the key factors that influence the outcome of these novel interactions. We report the results of a meta-analysis of 346 pairwise comparisons of forest insect fitness on novel and ancient host tree species from 31 publications. Host specificity of insects and phylogenetic relatedness between ancient and novel host trees emerged as key factors influencing insect fitness. Overall, fitness was significantly lower on novel host species than on ancient hosts. However, in some cases, fitness increased on novel hosts, mainly in polyphagous insects or when close relatives of ancient host trees were colonized. Our synthesis enables greatly improved impact prediction and risk assessment of biological invasions.< Leer menos

Palabras clave

INVASION

INSECTE

RELATION PLANTE-INSECTE

MÉTA-ANALYSE

Palabras clave en inglés

FITNESS

FOREST

GENETIC RELATEDNESS

HOST SHIFT

INSECT

META-ANALYSIS