1. Department of Biology, Plant‐Microbe Interactions Utrecht University Utrecht CH 3584 The Netherlands
2. Institut für Biologie Freie Universität Berlin Berlin D‐14195 Germany
3. Berlin‐Brandenburg Institute of Advanced Biodiversity Research Berlin D‐14195 Germany
4. Leibniz Centre for Agricultural Landscape Research (ZALF) Müncheberg 15374 Germany
5. Institute of Environmental Sciences Brandenburg University of Technology Cottbus 03046 Germany
6. Department of Biology, Ecology, and Biodiversity Utrecht University Utrecht CH 3584 The Netherlands