The term 'wetlands' covers a wide range of water based environments. They can be natural or man made, although most people think of natural environments first when they hear the term wetlands. There is no one definition of wetlands, because of the range of different types. One, broad definition of a wetland is 'an area of land where the water level remains near or above the surface of the ground for most of the year'. Some examples of naturally occurring wetlands are billabongs, swamps, creeks, lakes, mangroves, marshes, oases and rivers. …
