Indomalayan realm

one of the Earth's eight biogeographic realms

thumb|upright=1.6|Wallacea is the group of islands within the red area. The Max Carl Wilhelm Weber|Weber Line in blue has been used to separate Wallacea into a western part pertaining to [[Asia and an eastern part pertaining to Oceania.]] upright=1.6|thumb|The Sunda Shelf|Sunda and Sahul shelves. Wallacea is the area in between.

thumb|400px|Sundaland during the [[Last Glacial Maximum]]

thumb|upright=1.2|Map 1: A very broad definition of Malesia includes both the World Geographical Scheme for Recording Plant Distributions's Malesia (green) and most of its Papuasia (orange). Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms. It is a phytogeographical floristic region in the Paleotropical kingdom. It was first recognized as a distinct region in 1857 by Heinrich Zollinger, a Swiss botanist and explorer. The precise boundaries used to define Malesia vary. The broadly defined area used in Flora Malesiana consis

International biosphere reserve of India

trans-national region of the Mekong River in Southeast Asia

thumb Indo-Burma is a biodiversity hotspot designated by Conservation International.