BIODIVERSITY IN WETLANDS

Wetlands have the richest biodiversity of all ecosystems. The combination of shallow water, high levels of nutrients, and primary productivity is ideal for the development of organisms that forms the bases of the food web and feed on many species of fish, amphibians shellfish and insects.
Birds and mammals use the wetlands for food, water, shelter and especially during migration and breeding. Wetlands store carbon within their plant commutes and soil instead of releasing it into the atmosphere as carbon dioxide, helping climate conditions.
Wetlands are called "biological supermarkets."
They are the global water cycle, giving protection and purification use for life-cycle.

WHAT NICKNAME ARE WETLANDS CALLED AND WHY?