2026-04-14T04:57:36Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.12327/14802025-10-22T11:12:49Zcom_2072_4428com_2072_4427col_2072_487898

00925njm 22002777a 4500 dc van Dijk, Laura J. A. author Moreira, Xoaquín author Barr, Anna E. author Abdala-Roberts, Luis author Castagneyrol, Bastien author Faticov, Maria author Hardwick, Bess author Ten Hoopen, Jan P. J. G. author De La Mata, Raúl author Matheus Pires, Ricardo author Roslin, Tomas author Schigel, Dmitry S. author Timmermans, Bart G. H. author Tack, Ayco J. M. author 2021-12-13 The world is rapidly urbanizing, thereby transforming natural landscapes and changing the abundance and distribution of organisms. However, insights into the effects of urbanization on species interactions, and plant–pathogen interactions in particular, are lacking. We investigated the effects of urbanization on powdery mildew infection on Quercus robur at continental and within-city scales. At the continental scale, we compared infection levels between urban and rural areas of different-sized cities in Europe, and investigated whether plant traits, climatic variables and CO2 emissions mediated the effect of urbanization on infection levels. Within one large city (Stockholm, Sweden), we further explored whether local habitat features and spatial connectivity influenced infection levels during multiple years. At the continental scale, infection severity was consistently higher on trees in urban than rural areas, with some indication that temperature mediated this effect. Within Stockholm city, temperature had no effect, while local accumulation of leaf litter negatively affected powdery mildew incidence in one out of three years, and more connected trees had lower infection levels. This study is the first to describe the effects of urbanization on plant–pathogen interactions both within and among cities, and to uncover the potential mechanisms behind the observed patterns at each scale. van Dijk, Laura J. A., Xoaquín Moreira, Anna E. Barr, Luis Abdala‐Roberts, Bastien Castagneyrol, Maria Faticov, and Bess Hardwick et al. 2021. "Urbanization Affects Oak–Pathogen Interactions Across Spatial Scales". Ecography 2022 (1). doi:10.1111/ecog.06091. 0906-7590 http://hdl.handle.net/20.500.12327/1480 https://doi.org/10.1111/ecog.06091 Urbanization affects oak–pathogen interactions across spatial scales