Wetlands are arguably one of the most important ecological structures in existence. Wetlands are depending on by countless animal and plant species. They serve as breeding grounds for migrating birds and resident amphibians, permanent homes for fish species, social interaction amongst mammals who congregate there for water, and an escape from the heat of the sun for countless reptiles, amphibians and mammals. Many wetland species have become threatened and endangered because of their dependence on a particular type of wetland ecosystem, which has become seriously degraded or destroyed. Removal of sand, gravel, and other material from the beds of rivers and lakes has not only caused destruction to the wetlands but has led to sedimentation, which has affected other areas. The Ramsar Convention for the preservation of wetlands of international importance especially as waterfowl habitat was held in Iran in 1971. An Asian Ramsar group was thereafter formed in 1990 consisting of members who were a part of the Ramsar Convention.