The importance of wetlands was clearly demonstrated by 2004 Indian Ocean Tsunami. Wetlands may have provided a green barrier to protect coastlines and the coastal communities that live there.

There were localized and anecdotal reports from around the Indian Ocean region of how the damaging impact of the Tsunami was reduced behind mangrove stands and coral reefs.Many wading birds and waterfowl like egrets, herons and cranes nest in wetlands. Of the 78 endangered species of birds in India, 55 depend on wetlands (37 threatened species such as the Sarus crane and the spot-billed pelican and 18 near threatened species led by the lesser flamingo and the white ibis). Wetlands also provide food and shelter for mammals.

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Following are the role of wetlands


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