1. Department of Environmental Studies Centre for Environmental Management of Degraded Ecosystems (CEMDE) University of Delhi Delhi 110007 India
2. Ecology and Evolutionary Biology Department University of Tennessee Knoxville TN 37996 USA
3. Plant BioSystems Department of Agricultural, Food and Nutritional Science University of Alberta Edmonton AB T6G 2P5 Canada
4. Plant Science and Natural Products Institute of Biology Leiden (IBL) Leiden University PO Box 9505 Leiden 2300 RA the Netherlands
5. Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) PO Box 6700 AB Wageningen the Netherlands