Sundarbans - Wildlife Sanctuaries in Bangladesh

There are three wildlife sanctuaries established under the Bangladesh Wildlife Preservation Order. These are:
Sundarbans East Wildlife Sanctuary: Extends over an area of 31,227 ha. Freshwater and Sundri dominate interspersed with Gewa and Passur with Kankra occurring in areas subject to more frequent flooding. There is an understory of Shingra where, soils are drier and Amur in wetter areas and Goran in more saline places. Nypa palm widespread along drainage lines.
Sundarbans South Wildlife Sanctuary: Extends over an area of 36,970 ha. There is evidently the greatest seasonal variation in salinity levels and possibly represents an area of relatively longer duration of moderate salinity where Gewa is the dominant woody species. It is often mixed with Sundri, which is able to displace in circumstances such as artificially opened canopies where Sundri does not regenerate as effectively. It is also frequently associated with a dense understory of Goran and sometimes Passur.
Sundarbans West Wildlife Sanctuary: Extends over an area of 71,502 ha. Includes areas which support sparse Gewa and dense stands of Goran and discontinuous patches of Hantal palm on drier ground and river banks and levees.