1. Department of Plant Science & Huck Institutes of the Life Sciences The Pennsylvania State University, University Park PA USA
2. Department of Microbial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
3. Ecology & Biodiversity, Institute of Environmental Biology, Utrecht University Utrecht The Netherlands
4. School of Biological Sciences, University of Aberdeen Aberdeen UK
5. Institute of Biology, Leiden University Leiden The Netherlands