Lowland deciduous forests include deciduous, seasonal, hardwood + bamboo forest (bb/df) and
deciduous dipterocarp-oak, seasonal, hardwood forest (dof)__the latter often incorrectly being referred
to as “savanna” forest [9-10]. Areas of bb/df in Thailand began to be commercially exploited for
valuable timber trees, especially teak (Tectona grandis L. f.,Verbenaceae) and other hardwood trees,
from about 1870 [11]. Presently there remains only one area in Thailand in Mae Yom National Park,
Phrae province, which has natural teak populations [12-13]. This area has also been illegally logged
for decades and repeatedly threatened with a dam construction project.