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Floating Mat
A floating mat (german: Schwingrasen) is a layer of mosses and other, especially stoloniferous, plants that grows out from the shore across the surface of a lake or pond. This type of habitat is protected and is designated in the European Habitats Directive as "LRT No. 7140 Transition and Floating Mat Bogs". Floating mats are not always capable of bearing weight. There is a risk of drowning when walking on them. Formation The formation of floating mats is a process of sedimentation in water bodies. In bog ponds, floating mats of peat moss form as water levels fall and nutrients accumulate. In eutrophic waters, the formation of floating mats is caused by underwater peat that floats to the surface and is colonised by plants. The vegetative mats are held together by their root systems. Reeds or rushes growing by the lakeshore can eventually cut these mats off, which results in a floating island. If the floating mats are stable and large enough, even trees can grow on them, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bog Sedge
Bog sedge is a vernacular name for any of the following plants: *'' Carex limosa'' * ''Carex magellanica'' subsp. ''irrigua'' (formerly ''Carex paupercula'') *''Kobresia ''Kobresia'' is a genus of plants in the sedge family. They are sometimes called bog sedges. These perennial sedges are quite similar to ''Carex'' species in appearance. The genus is widespread across much of Europe, Asia and North America, with ...'' {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raised Bog
Raised bogs, also called ombrotrophic bogs, are acidic, wet habitats that are poor in mineral salts and are home to flora and fauna that can cope with such extreme conditions. Raised bogs, unlike fens, are exclusively fed by precipitation (ombrotrophy) and from mineral salts introduced from the air. They thus represent a special type of bog, hydrologically, ecologically and in terms of their development history, in which the growth of peat mosses over centuries or millennia plays a decisive role. They also differ in character from blanket bogs which are much thinner and occur in wetter, cloudier climatic zones. Raised bogs are very threatened by peat cutting and pollution by mineral salts from the surrounding land (due to agriculture and Industrial sector, industry). The last great raised bog regions are found in western Siberia and Canada. Terminology The term raised bog derives from the fact that this type of bog rises in height over time as a result of peat formation. They a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floating Island
A floating island is a mass of floating aquatic plants, mud, and peat ranging in thickness from several centimeters to a few meters. Floating islands are a common natural phenomenon that are found in many parts of the world. They exist less commonly as an artificial phenomenon. Floating islands are generally found on marshlands, lakes, and similar wetland locations, and can be many hectares in size. Natural occurrences Sometimes referred to as ''tussocks'', ''floatons'', or ''suds'', natural floating islands are composed of vegetation growing on a buoyant mat of plant roots or other organic detritus. In aquatic regions of Northwestern Europe several hundred hectares or thousand acres of floating meadows (German ''Schwingrasen'', Dutch ''trilveen'') have been preserved, which are partly used as agricultural land, partly as nature reserves. They typically occur when growths of cattails, bulrush, sedge, and reeds extend outward from the shoreline of a wetland area. As the wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophication
Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplankton productivity". Water bodies with very low nutrient levels are termed oligotrophic and those with moderate nutrient levels are termed mesotrophic. Advanced eutrophication may also be referred to as dystrophic and hypertrophic conditions. Eutrophication can affect freshwater or salt water systems. In freshwater ecosystems it is almost always caused by excess phosphorus. In coastal waters on the other hand, the main contributing nutrient is more likely to be nitrogen, or nitrogen and phosphorus together. This depends on the location and other factors. When occurring naturally, eutrophication is a very slow process in which nutrients, especially phosphorus compounds and organic matter, accumulate in water bodies. These nutrients deri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peat Cutting
Peat (), also known as turf (), is an accumulation of partially decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. The peatland ecosystem covers and is the most efficient carbon sink on the planet, because peatland plants capture carbon dioxide (CO2) naturally released from the peat, maintaining an equilibrium. In natural peatlands, the "annual rate of biomass production is greater than the rate of decomposition", but it takes "thousands of years for peatlands to develop the deposits of , which is the average depth of the boreal orthernpeatlands", which store around 415 gigatonnes (Gt) of carbon (about 46 times 2019 global CO2 emissions). Globally, peat stores up to 550 Gt of carbon, 42% of all soil carbon, which exceeds the carbon stored in all other vegetation types, including the world's forests, although it covers just 3% of the land's surface. ''Sphagnum'' moss, also called peat moss, is one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Fly
The Chironomidae (informally known as chironomids, nonbiting midges, or lake flies) comprise a family of nematoceran flies with a global distribution. They are closely related to the Ceratopogonidae, Simuliidae, and Thaumaleidae. Many species superficially resemble mosquitoes, but they lack the wing scales and elongated mouthparts of the Culicidae. The name Chironomidae stems from the Ancient Greek word ''kheironómos'', "a pantomimist". Common names and biodiversity This is a large taxon of insects; some estimates of the species numbers suggest well over 10,000 world-wide. Males are easily recognized by their plumose antennae. Adults are known by a variety of vague and inconsistent common names, largely by confusion with other insects. For example, chironomids are known as "lake flies" in parts of Canada and Lake Winnebago, Wisconsin, but "bay flies" in the areas near the bay of Green Bay, Wisconsin. They are called "sand flies", "muckleheads", "muffleheads", "Canadian so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amoeba
An amoeba (; less commonly spelled ameba or amœba; plural ''am(o)ebas'' or ''am(o)ebae'' ), often called an amoeboid, is a type of cell or unicellular organism with the ability to alter its shape, primarily by extending and retracting pseudopods. Amoebae do not form a single taxonomic group; instead, they are found in every major lineage of eukaryotic organisms. Amoeboid cells occur not only among the protozoa, but also in fungi, algae, and animals. Microbiologists often use the terms "amoeboid" and "amoeba" interchangeably for any organism that exhibits amoeboid movement. In older classification systems, most amoebae were placed in the class or subphylum Sarcodina, a grouping of single-celled organisms that possess pseudopods or move by protoplasmic flow. However, molecular phylogenetic studies have shown that Sarcodina is not a monophyletic group whose members share common descent. Consequently, amoeboid organisms are no longer classified together in one group.Jan Pawl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cowbane '', a small genus of North American flowering plants in the carrot family
{{Plant common name ...
Cowbane is a common name for several plants and may refer to: * ''Cicuta virosa'', a poisonous species of ''Cicuta'', native to northern and central Europe, northern Asia, and northwestern North America * ''Oxypolis ''Oxypolis'' is a small genus of North American flowering plants in the carrot family known as cowbane, water dropwort, dropwort, hog-fennel, and pig-potato. , Kew's Plants of the World Online accepts four species in the genus ''Oxypolis'': *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hop Sedge
Hop sedge is a common name for several species of sedges: * ''Carex lupulina'' — native to eastern North America * ''Carex lupuliformis'' — usually called false hop sedge, also native to eastern North America * ''Carex pseudocyperus'' — native to the upper Midwest and Northeastern United States, as well as southeastern Canada References {{Plant common name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulrush
Bulrush is a vernacular name for several large wetland grass-like plants *Sedge family (Cyperaceae): **''Cyperus'' **'' Scirpus'' **''Blysmus'' **''Bolboschoenus'' **'' Scirpoides'' **'' Isolepis'' **'' Schoenoplectus'' **'' Trichophorum'' * Typhaceae: **''Typha'' The Botanical Society of Britain and Ireland recommends "bulrush" as an English name for plants in the genus ''Typha''. These species are also sometimes known as reedmace, cattails or black paddies. One particular famous story involving bulrushes is that of the ark of bulrushes in the Book of Exodus. In this story, it is said that the infant Moses was found in a boat made of bulrushes. Within the context of the story, this is probably paper reed (''Cyperus papyrus ''Cyperus papyrus'', better known by the common names papyrus, papyrus sedge, paper reed, Indian matting plant, or Nile grass, is a species of aquatic flowering plant belonging to the sedge family Cyperaceae. It is a tender herbaceous perenn ...'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marsh Cinquefoil
''Comarum palustre'' ( syn. ''Potentilla palustris''), known by the common names purple marshlocks, swamp cinquefoil and marsh cinquefoil, is a common waterside shrub. It has a circumboreal distribution, occurring throughout North America, Europe, and Asia, particularly the northern regions. It is most commonly found on lake shores, marshy riversides and stream margins, often partly submerged with foliage floating. It is a parent of some ''Fragaria''–''Comarum'' hybrids, ornamental plants produced by crossing with strawberries. Description Its branches spread into leaves with three to seven narrow leaflets which are sharply jagged. The stem is a reddish-brown, low sprawling, vine-like structure. Flowers extend from the branch which vary from red to purple, and are about one inch in diameter, blooming in summer. The stems roots at the base then rises to about .Parnell, J. and Curtis, T. 2012. ''Webb's An Irish Flora.'' Cork University Press. Cultivation Swamp cinquefoil prefer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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