CASTAGNEYROL, Bastien; MOREIRA, Xoaquín; JACTEL, Herve

doi:10.1038/s41598-018-24299-x

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

CASTAGNEYROL, Bastien
Biodiversité, Gènes & Communautés [BioGeCo]

MOREIRA, Xoaquín
Mision Biologica de Galicia [MBG]

JACTEL, Herve
Biodiversité, Gènes & Communautés [BioGeCo]

Langue

Article de revue

Ce document a été publié dans

Scientific Reports. 2018, vol. 8, n° 1, p. 1-11

Nature Publishing Group

Résumé en anglais

Both plant neighbourhood composition and drought have well-known independent effects on insect herbivore performance, but their interactive effects remain elusive. In this study we performed a laboratory experiment to investigate the independent and combined effects of plant neighbourhood composition and drought on the performance of Gypsy moth larvae (Lymantria dispar) feeding on silver birch (Betula pendula) leaves. For this, we collected leaf samples from birch trees growing in a field experiment where we manipulated both host-tree species diversity (three levels: birch monocultures, two-species mixtures associating birch with the pedunculate oak Quercus robur or maritime pine Pinus pinaster, and three-species mixture with pedunculate oak, the maritime pine and birch) and water availability (two levels: irrigated vs. non-irrigated). In most cases, plant neighbourhood composition and irrigation treatments independently and interactively affected herbivore performance traits, especially those related to growth and food (i.e. birch leaves) processing. By addressing the interactive effects of tree species diversity and drought on insect herbivory from the herbivore's point of view, our study builds toward a better understanding of the multiple ecological drivers of plant-insect interactions.< Réduire

Métadonnées

Licence d’utilisation du document

Drought and plant neighbourhood interactively determine herbivore consumption and performance

Langue

Ce document a été publié dans

Résumé en anglais

DOI

Origine

Unités de recherche