1. Institute of Environmental Sciences, Leiden Universiteit, Einsteinweg 2, 2333CC Leiden, The Netherlands
2. Department of Earth and Environmental Sciences, The University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK
3. Biosystematics group, Wageningen UR, Droevendaalse steeg 1, 6708PB Wageningen, The Netherlands
4. Laboratory of Nematology, Wageningen UR, Droevendaalse steeg 1, 6708PB Wageningen, The Netherlands
5. Wageningen Environmental Research (Alterra), Wageningen UR, Wageningen, The Netherlands
6. Te Pukenga–Nelson Marlborough Institute of Technology, 322 Hardy Street, Nelson 7010, New Zealand
7. Environmental Microbiology and Biotechnology, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
8. Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
9. Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA
10. Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO 80309, USA