A wetland is an area that is covered by water part or most of the year. A swamp is a good example of a wetland because it is submerged most of the year by rainfall, sheet flow of water or underground springs. Marshes are wetlands that are covered by water for a shorter period of time and may be dry for part of the year. The Everglades National Park or “River of Grass” in Florida is one of the best known examples of wetlands because its ground is covered with water for most of the year. Soils in Wetlands are called hydric or alluvial which means they are covered by water most of the year and thus have different kinds of plants and vegetation. Other types of wetlands may be called marshes, estuaries bogs, bayheads, cypress domes, stands and sloughs, or wet prairies. The Univ. of Florida IFAS does a lot of research into the ecology of wetlands and have a good description of wetlands and their importance. The picture shown above is a pond at Six Mile Cypress Slough in Ft. Myers. A slough is a slow moving swamp channeling the water downstream.