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It is a poetical or dialect word meaning a sheet of standing water, a lake or a pond (OED). The OED's fourth definition ("A marsh, a fen.") includes wetland such as fen amongst usages of the word which is reflected in the lexicographers' recording of it. In a quotation from the year 598, mere is contrasted against moss (bog) and field against fen.
All mires are initially fens when the peat starts to form, and may turn into bogs once the height of the peat layer reaches above the surrounding land. A quagmire is a floating (quaking) mire, bog, or any peatland being in a stage of hydrosere or hydrarch (hydroseral) succession, resulting in pond-filling yields underfoot ( floating mats ).
There are four main kinds of wetlands – marsh, swamp, bog, and fen (bogs and fens being types of peatlands or mires). Some experts also recognize wet meadows and aquatic ecosystems as additional wetland types. [1] Sub-types include mangrove forests, carrs, pocosins, floodplains, [1] peatlands, vernal pools, sinks, and many others. [22]
Poor fens are, in many ways, an intermediate between rich fens and bogs. Hydrologically, they are more similar to rich fens than to bogs, but regarding vegetation composition and chemistry, they are more similar to bogs than rich fens. [30] They are much more acidic than their rich counterparts, with a pH of approximately 5.5 to 4. [12]
Difference between swamp and marsh (from Swamp) Image 41 Kakerdaja Fen, Estonia (from Fen ) Image 42 A raised bog in Ķemeri National Park , Jūrmala , Latvia, formed approximately 10,000 years ago in the postglacial period and now a tourist attraction.
The swamps of southern Florida are home to all manner of intimidating apex predators, but it was a new experience when a team of trackers found a 7-foot-wide mound of pythons in a marsh near Naples.
The word palustrine comes from the Latin word palus or marsh. [2] Wetlands within this category include inland marshes and swamps as well as bogs , fens , pocosins , tundra and floodplains . According to the Cowardin classification system , palustrine wetlands can also be considered the area on the side of a river or a lake, as long as they are ...
A quaking bog, schwingmoor, or swingmoor is a form of floating bog occurring in wetter parts of valley bogs and raised bogs and sometimes around the edges of acidic lakes. The bog vegetation, mostly sphagnum moss anchored by sedges (such as Carex lasiocarpa ), forms a floating mat approximately half a meter thick on the surface of water or ...