1. Department of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
2. Cooperate Centre of Thai Forest Ecological Research Network, Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
3. Forestry and Forest Products Research Institute, Tsukuba 305-8687, Japan
4. Tohoku Research Center, Forestry and Forest Products Research Institute, Morioka 020-0123, Japan
5. Department of Agroforestry, Maejo University, Phrae Campus, Phrae 54140, Thailand
6. Department of National Parks, Wildlife and Plant Conservation, Bangkok 10900, Thailand
7. Faculty of Environment and Resource Studies, Mahidol University, Nakhonpathom 73170, Thailand