|
Epithemia
''Epithemia'' is a genus of diatoms belonging to the family Rhopalodiaceae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... They have recently been linked to nitrogen fixation and can be a possible indicator of eutrophication. This is because levels of epithemia “containing cyanobacteria endosymbionts, decreased with increased ambient inorganic N concentrations” (Stancheva 2013). Concentrations of members of the epithemia genus existing with cyanobacteria endosymbionts would mean that there is more fixed nitrogen in the ecosystem. It could act as an early indicator of nutrient overload. Species Species: *'' Epithemia alpestris'' *'' Epithemia alpestris'' *'' Epithemia anasthasiae'' References {{Taxonbar, from=Q1347445 Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epithemia Alpestris
''Epithemia'' is a genus of diatoms belonging to the family Rhopalodiaceae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... They have recently been linked to nitrogen fixation and can be a possible indicator of eutrophication. This is because levels of epithemia “containing cyanobacteria endosymbionts, decreased with increased ambient inorganic N concentrations” (Stancheva 2013). Concentrations of members of the epithemia genus existing with cyanobacteria endosymbionts would mean that there is more fixed nitrogen in the ecosystem. It could act as an early indicator of nutrient overload. Species Species: *'' Epithemia alpestris'' *'' Epithemia alpestris'' *'' Epithemia anasthasiae'' References {{Taxonbar, from=Q1347445 Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epithemia Anasthasiae
''Epithemia'' is a genus of diatoms belonging to the family Rhopalodiaceae. The genus has cosmopolitan distribution. They have recently been linked to nitrogen fixation and can be a possible indicator of eutrophication. This is because levels of epithemia “containing cyanobacteria endosymbionts, decreased with increased ambient inorganic N concentrations” (Stancheva 2013). Concentrations of members of the epithemia genus existing with cyanobacteria endosymbionts would mean that there is more fixed nitrogen in the ecosystem. It could act as an early indicator of nutrient overload. Species Species: *''Epithemia alpestris'' *''Epithemia alpestris ''Epithemia'' is a genus of diatoms belonging to the family Rhopalodiaceae. The genus has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the worl ...'' *'' Epithemia anasthasiae'' References {{Taxonbar, from=Q1347445 Diat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatom
A diatom (Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's biomass: they generate about 20 to 50 percent of the oxygen produced on the planet each year, take in over 6.7 billion metric tons of silicon each year from the waters in which they live, and constitute nearly half of the organic material found in the oceans. The shells of dead diatoms can reach as much as a half-mile (800 m) deep on the ocean floor, and the entire Amazon basin is fertilized annually by 27 million tons of diatom shell dust transported by transatlantic winds from the African Sahara, much of it from the Bodélé Depression, which was once made up of a system of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatoms
A diatom (New Latin, Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising several Genus, genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's Biomass (ecology), biomass: they generate about 20 to 50 percent of the oxygen produced on the planet each year, take in over 6.7 billion metric tons of silicon each year from the waters in which they live, and constitute nearly half of the organic material found in the oceans. The Protist shell, shells of dead diatoms can reach as much as a half-mile (800 m) deep on the ocean floor, and the entire Amazon basin is fertilized annually by 27 million tons of diatom shell dust transported by transatlantic winds from the African Sahara, much of it from the Bodélé Dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
