Insect herbivores should follow plants escaping their relatives

• DOI: 10.1007/s00442-014-3026-3
• Publication Date: 2014-07-22T08:33:37Z
• Authors: Benjamin Yguel; Richard Ian Bailey; Claire Villemant; Amaury Brault; Hervé Jactel; Andreas Prinzing
• Keywords: 0106 biological sciences; 570; Parasitism rate; 590; Trophic chain; 01 natural sciences; diversity; Trees; Quercus; Temperate forest; Animals; Herbivory; Ecology, Evolution, Behavior and Systematics; Phylogeny; isolated trees; feeding insects; Plants; 15. Life on land; parasitoids; Biological Evolution; Hymenoptera; niche conservatism; phylogenetic conservatism; [SDE.BE] Environmental Sciences/Biodiversity and Ecology; Lepidoptera; Community ecology - Original research; community; Macroevolution; habitat fragmentation; quercus; France; [SDE.BE]Environmental Sciences/Biodiversity and Ecology; associations; Community phylogeny

Neighboring plants within a local community may be separated by many millions of years evolutionary history, potentially reducing enemy pressure insect herbivores. However, it is not known how the isolation plant affects fitness an herbivore living on such plant, especially herbivore's pressure. Here, we suggest that host operate similarly as spatial and reduce per herbivore. We investigated effect phylogenetic trees exerted specialist generalist enemies (parasitoids birds) ectophagous Lepidoptera galling Hymenoptera. found decreases these In Lepidoptera, decreasing resulted from density dependence attack, mechanism often observed in contrast, Hymenoptera, declined with se, well parallel decline leaf damage non-galling insects. Our results leave their ancestral neighborhood can trigger, partly through simple density-dependency, release increase few herbivores succeed tracking plants.