biostudies-literatureValdes-Correcher EAgence Nationale de la RechercheFondation BNP Paribase8709https://www.ebi.ac.uk/biostudies/studies/S-EPMC8928871biostudies-literatureUnknown12(3)Urbanization is an important driver of the diversity and abundance of tree-associated insect herbivores, but its consequences for insect herbivory are poorly understood. A likely source of variability among studies is the insufficient consideration of intra-urban variability in forest cover. With the help of citizen scientists, we investigated the independent and interactive effects of local canopy cover and percentage of impervious surface on insect herbivory in the pedunculate oak (<i>Quercus robur</i> L.) throughout most of its geographic range in Europe. We found that the damage caused by chewing insect herbivores as well as the incidence of leaf-mining and gall-inducing herbivores consistently decreased with increasing impervious surface around focal oaks. Herbivory by chewing herbivoEcology and evolutionHerbivory on the pedunculate oak along an urbanization gradient in Europe: Effects of impervious surface, local tree cover, and insect feeding guild.PMC8928871ANR‐10‐LABX‐45Mamaev NAFerrante MMusolin DLLovei GLFaticov MKozlov MVPopova AMellerin YLupastean DSelikhovkin AVFernandez-Conradi PCastagneyrol BHowe AGHagge JHalder IVSam KBogdziewicz MPitkanen JMTack AJMBarbaro LGalman ABranco MValdes-Correcher EGossner MWetherbee RDobrosavljevic JDuduman MLMrazova ADulaurent AMKoricheva JCentenaro GMoreira XPrinzing AMilanovic SHampe ACauchoix MBouget CTahadlova MGreen SThomas RLBjoern MCHarvey DKadiri YfalseHerbivory on the pedunculate oak along an urbanization gradient in Europe: Effects of impervious surface, local tree cover, and insect feeding guild.Urbanization is an important driver of the diversity and abundance of tree-associated insect herbivores, but its consequences for insect herbivory are poorly understood. A likely source of variability among studies is the insufficient consideration of intra-urban variability in forest cover. With the help of citizen scientists, we investigated the independent and interactive effects of local canopy cover and percentage of impervious surface on insect herbivory in the pedunculate oak (<i>Quercus robur</i> L.) throughout most of its geographic range in Europe. We found that the damage caused by chewing insect herbivores as well as the incidence of leaf-mining and gall-inducing herbivores consistently decreased with increasing impervious surface around focal oaks. Herbivory by chewing herbivo2022-01-01T00:00:00Z2022 Mar2025-04-19T20:07:06.768Z2025-04-19T20:07:06.768ZS-EPMC89288713534261410.1002/ece3.8709