Wetland
Videos
A wetland is a distinct semi-aquatic ecosystem whose groundcovers are flooded or saturated in water, either permanently, for years or decades, or only seasonally. Flooding results in oxygen-poor proce
Marshlands are often noted within wetlands, as seen here at the Jamaica Bay Wildlife Refuge in New York City.
Sunrise at Viru Bog, Estonia
Wetlands contrast the hot, arid landscape around Middle Spring, Fish Springs National Wildlife Refuge, Utah.
Humid wetland in Pennsylvania before a rain
Fen
Videos
A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. It is one of the main types of wetland along with marshes, swamps, and bogs. Bogs and fens, both peat-forming
Avaste Fen, Estonia. Sedges dominate the landscape. Woody shrubs and trees are sparse.
Wicken Fen, England. Grasses in the foreground are typical of a fen.
Spaulding Fen, Wisconsin
Small extreme rich fen in southwestern Minnesota. The white flowers, Parnassia glauca, are a fen indicator species in Minnesota.