1. Faculty of Geography, Philipps University of Marburg, Marburg, Germany.
2. Eau Terre Environnement, Institut national de la recherche scientifique, Quebec City, QC, Canada.
3. Department of Systematics, Biodiversity and Evolution of Plants, University of Göttingen, Göttingen, Germany.
4. Department of Biomedical Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia.