1. Institute of Botany, University of Natural Resources and Applied Life Sciences Vienna, 33 Gregor Mendel Strasse, A‐1180 Vienna, Austria
2. School of Biological Sciences, Monash University, Clayton, Vic. 3800, Australia
3. Department of Chemical Ecology and Ecosystem Research, University of Vienna, Althanstrasse 14, A‐1090 Vienna, Austria
4. Institute of Water Resources Management, Hydrogeology and Geophysics, Joanneum Research, Elisabethstrasse 16/II, A‐8010 Graz, Austria
5. Institute of Wood Science and Technology, University of Natural Resources and Applied Life Sciences Vienna, Peter Jordan Strasse 82, A‐1190 Vienna, Austria
6. National Parks, Wildlife and Plant Conservation Department, 10900 Chatuchak, Bangkok, Thailand