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Lagurini
Lagurini is a tribe of lemmings in the subfamily Arvicolinae. It contains three species in two genera. Species in this tribe are known as steppe lemmings. It contains the following species: * Genus '' Eolagurus'' ** Yellow steppe lemming, ''E. luteus'' ** Przewalski's steppe lemming, ''E. przewalskii'' * Genus '' Lagurus'' ** Steppe lemming, ''L. lagurus'' Phylogenetic evidence based on mtDNA supports the water voles of the genus '' Arvicola'' not in fact belonging to the tribe Arvicolini, but rather forming a sister group to the Lagurini. Based on the study, the Lagurini and ''Arvicola'' together form a sister group to a clade comprising ''Hyperacrius'' and the rest of the Arvicolini Arvicolini is a tribe of voles in the subfamily Arvicolinae. A 2021 study found that '' Arvicola'' may not belong in this group, instead being sister to the tribe Lagurini. List of species Tribe Arvicolini *Genus '' Arvicola'' - water voles ** .... References {{Taxonbar, from=Q17781830 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arvicolinae
The Arvicolinae are a subfamily of rodents that includes the voles, lemmings, and muskrats. They are most closely related to the other subfamilies in the Cricetidae (comprising the hamsters and New World rats and mice). Some authorities place the subfamily Arvicolinae in the family Muridae along with all other members of the superfamily Muroidea. Some refer to the subfamily as the Microtinae (yielding the adjective "microtine") or rank the taxon as a full family, the Arvicolidae. The Arvicolinae are the most populous group of Rodentia in the Northern Hemisphere. They often are found in fossil occlusions of bones cached by past predators such as owls and other birds of prey. Fossils of this group are often used for biostratigraphic dating of paleontological and archeological sites in North America and Europe. Description The most convenient distinguishing feature of the Arvicolinae is the nature of their molar teeth, which have prismatic cusps in the shape of alternati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lemming
A lemming is a small rodent, usually found in or near the Arctic in tundra biomes. Lemmings form the subfamily Arvicolinae (also known as Microtinae) together with voles and muskrats, which form part of the superfamily Muroidea, which also includes rats, mice, hamsters, and gerbils. In popular culture, a longstanding myth holds that they exhibit herd mentality and jump off cliffs, committing mass suicide. Description and habitat Lemmings measure around in length and weigh around . Lemmings are quite rounded in shape, with brown and black, long, soft fur. They have a very short tail, a stubby, hairy snout, short legs, and small ears. They have a flattened claw on the first digit of their front feet, which helps them to dig in the snow. They are herbivorous, feeding mostly on mosses and grasses. They also forage through the snow surface to find berries, leaves, shoots, roots, bulbs, and lichens. Lemmings choose their preferred dietary vegetation disproportionately to its occurrenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagurus (rodent)
''Lagurus'' is a genus in the subfamily Arvicolinae (voles, lemmings, and related species). ''Lagurus'' includes a single living species, the steppe lemming (''Lagurus lagurus'') of central Eurasia. The North American sagebrush vole (''Lemmiscus curtatus'') has also been included in ''Lagurus'', but is likely not closely related. The earliest fossils of ''Lagurus'', allocated to '' Lagurus arankae'', appear in the Late Pliocene Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effect, .... Two other fossil species, '' Lagurus pannonicus'' and '' Lagurus transiens'', are thought to be part of a lineage that led to the living steppe lemming.Chaline et al., 1999, pp. 251–252; McKenna and Bell, 1997, p. 153 References Literature cited *Chaline, J., Brunet-Lecomte, P., Montuire, S., Viriot, L. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arvicola
The water voles are large voles in the genus ''Arvicola''. They are found in both aquatic and dry habitat through Europe and much of northern Asia. A water vole found in Western North America was historically considered a member of this genus, but has been shown to be more closely related to members of the genus ''Microtus''. Head and body lengths are 12–22 cm, tail lengths are 6.5–12.5 cm, and their weights are 70–250 g. The animals may exhibit indeterminate growth. They are thick-furred and have hairy fringes on their feet that improve their swimming ability. A 2021 phylogenetic study using mtDNA found that ''Arvicola'' may not belong with the rest of its namesake tribe Arvicolini, but rather forms a sister group to the tribe Lagurini. Species * European (or northern) water vole (''A. amphibius'' or ''A. terrestris'') * Southwestern (or southern) water vole (''A. sapidus'') *Montane water vole The montane water vole (''Arvicola scherman'') is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arvicolini
Arvicolini is a tribe of voles in the subfamily Arvicolinae. A 2021 study found that ''Arvicola'' may not belong in this group, instead being sister to the tribe Lagurini. List of species Tribe Arvicolini *Genus ''Arvicola'' - water voles ** European (or Northern) water vole, ''Arvicola amphibius (Arvicola terrestris)'' ** Southwestern (or Southern) water vole, ''Arvicola sapidus'' **Montane water vole, ''Arvicola scherman'' *Genus '' Blanfordimys'' **Afghan vole, ''Blanfordimys afghanus'' ** Bucharian vole, ''Blanfordimys bucharicus'' *Genus ''Chionomys'' - snow voles ** Caucasian snow vole, ''Chionomys gud'' ** European snow vole, ''Chionomys nivalis'' **Robert's snow vole, ''Chionomys roberti'' *Genus '' Lasiopodomys'' ** Brandt's vole, ''Lasiopodomys brandtii'' ** Plateau vole, ''Lasiopodomys fuscus'' ** Mandarin vole, ''Lasiopodomys mandarinus'' *Genus ''Lemmiscus'' ** Sagebrush vole, ''Lemmiscus curtatus'' *Genus ''Microtus'' - voles ** Insular vole, ''Microtus abbreviatus' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steppe Lemming
The steppe lemming or steppe vole (''Lagurus lagurus'') is a small, plump, light-grey rodent, similar in appearance to the Norway lemming ('' Lemmus lemmus''), but not in the same genus. The steppe lemming eats shoots and leaves and is more active at night, though it is not strictly nocturnal. In the wild, it is found in Russia and Ukraine in steppes and semiarid environments. Fossil remains of this species have been found in areas as far west as Great Britain. Description The steppe lemming has a body length of up to 12 cm and a tail of 2 cm, a little shorter than the hind foot. It weighs about 30 g. The eyes and ears are small and the fur is a uniform shade of brownish-grey with a black dorsal stripe. Distribution This lemming is found in steppe, forest-steppe and semidesert parts of western Mongolia, northwest China, many parts of the former USSR, Kazakhstan, Ukraine, the southern and middle Ural, and western and eastern Siberia. Ecology The steppe lemming is a co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miklós Kretzoi
Miklós Kretzoi (9 February 1907 – 15 March 2005) was a Hungarian geologist, paleontologist and paleoanthropologist and Széchenyi Prize winner. Exhibition in the Hungarian National Museum, 9 February - 24 May 2004 Kretzoi studied Arts and natural sciences at the then Pázmány Péter University, Budapest from 1925 to 1929. While still a student, he worked as a volunteer at the Geological Institute of Hungary. In 1930 he graduated from the University of Pécs with a PhD in Palaeontology, Geology and Geography. In 1933 he commenced work with the "Hungarian-American Oil Inc" as a geologist and geophysicist. He remained at Hungarian-American Oil until the outbreak of the Second World War. Kretzoi moved to the National Museum of Hungary where he was curator of the Mineralogy and Paleontology departments until he began work at the Geological Institute of Hungary in 1950. Kretzoi was the director of the Geological Institute of Hungary from 1956 to 1958. From the mid-19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eolagurus
''Eolagurus'' is a genus of rodent in the family Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At almost 608 species, it is the second-largest family of mammals, and has m .... It contains the following species: * Yellow steppe lemming (''Eolagurus luteus'') * Przewalski's steppe lemming (''Eolagurus przewalskii'') References Rodent genera Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribe (biology)
In biology, a tribe is a taxonomic rank above genus, but below family and subfamily. It is sometimes subdivided into subtribes. By convention, all taxonomic ranks from genus upwards are capitalized, including both tribe and subtribe. In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas). The tribe Hominini is divided into subtribes by some scientists; subtribe Hominina then comprises "humans". The standard ending for the name of a zoological subtribe is "-ina". In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae". In bacteriology, the form of tribe names is as in botany, e.g., Pseudomonadeae, based on the ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow Steppe Lemming
The yellow steppe lemming (''Eolagurus luteus'') is a species of rodent in the family Cricetidae. It is found in China, Kazakhstan, and Mongolia. Its natural habitat is temperate desert A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About on .... References *Musser, G. G. and M. D. Carleton. (2005). Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. Eolagurus Rodents of China Mammals of Central Asia Mammals of Mongolia Mammals described in 1840 Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Przewalski's Steppe Lemming
Przewalski's steppe lemming (''Eolagurus przewalskii'') is a species of rodent in the family Cricetidae. It is found in China and Mongolia Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 million, .... References * Baillie, J. (1996).''Eolagurus przewalskii'' 2006 IUCN Red List of Threatened Species. Downloaded on 19 July 2007. *Musser, G. G. and M. D. Carleton. (2005). Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. Eolagurus Rodents of China Mammals of Mongolia Mammals described in 1889 Taxa named by Eugen Büchner Taxonomy articles created by Polbot {{Arvicolinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondrial DNA
Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA is only a small portion of the DNA in a eukaryotic cell; most of the DNA can be found in the cell nucleus and, in plants and algae, also in plastids such as chloroplasts. Human mitochondrial DNA was the first significant part of the human genome to be sequenced. This sequencing revealed that the human mtDNA includes 16,569 base pairs and encodes 13 proteins. Since animal mtDNA evolves faster than nuclear genetic markers, it represents a mainstay of phylogenetics and evolutionary biology. It also permits an examination of the relatedness of populations, and so has become important in anthropology and biogeography. Origin Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
