Tropical South East Asia harbours a high biodiversity. This area comprises four of the 25 biodiversity hotspots defined by Myers et al. (2000): Indo-Burma, Sundaland, the Phillipines, and the Wallacea. All of these regions are biologically very rich, both in species numbers and endemism. According to (2018), more than 3700 species of ants can be found in this area.

Tropical rain forest in Gunung Mulu National Park

Tropical lowland dipterocarp rainforests harbour a large proportion of the diversity in South-East Asia. This pictures shows rainforests in the Gunung Mulu National Park in Sarawak, Malaysia on Borneo where more than 200 species of ants have been solely recorded in the litter layer of the lowland forests.