1. School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
2. Viet Nature Conservation Centre, PO Box 89, No. 6 Dinh Le Street, Hanoi, Viet Nam
3. Center for Agriculture Forestry Research and Development, University of Agriculture and Forestry, Hue University, 102 Phung Hung Street, Hue, Viet Nam
4. Info Flora, Conservatory and Botanical Gardens, PO Box 71, CH-1292 Chambésy-Genève, Switzerland
5. Ecology and Biodiversity, Institute of Environmental Biology, Utrecht University, PO Box 80084, 3508 TB Utrecht, The Netherlands
6. University of York, Heslington, York YO8 5DD, UK
7. School of Geography, University of Leeds, Leeds LS2 9JT, UK