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Wetlands perform a wide range of biodiversity functions especially with respect to naturally protecting surrounding areas from flooding. Elucidate.

Topic: Conservation, environmental pollution and degradation, environmental impact assessment

6. Wetlands perform a wide range of biodiversity functions especially with respect to naturally protecting surrounding areas from flooding. Elucidate. (250 words)

Difficulty level: Easy

Reference: Down to Earth Insights on India

Why the question:

The Experts in Bangladesh have cautioned against solely blaming climate change for the ongoing floods in the country’s north-eastern Sylhet division. They say the destruction of Sylhet’s traditional wetlands, known as ‘haors’ are also part of the reason.

Key Demand of the question:

To write about the importance of wetland ecosystem and its role in flood mitigation.

Elucidate

Give a detailed account as to how and why it occurred, or what is the context. You must be defining key terms wherever appropriate and substantiate with relevant associated facts.

Structure of the answer:

Introduction: 

Begin by defining a wetland and its types.

Body:

Write about the various functions performed by a wetland- water-related ecosystem services, productive areas for plant life and animals, major habitat for most of the world’s waterbirds and key habitat for migratory species, important source of food and high recreational, historical, scientific, and cultural values.

Conclusion:

Conclude by summarising their importance.