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Cryptotriton Necopinus
''Cryptotriton'' is the genus of hidden salamanders in the family Plethodontidae, native to Mexico, Honduras and Guatemala. Most species in this genus are endangered or critically endangered with ''Cryptotriton sierraminensis'' being data deficient according to the IUCN. Species The following seven species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ... are included in this genus: External links * . 2008. Amphibian Species of the World: an Online Reference. Version 5.2 (15 July 2008)''Cryptotriton'' Electronic Database accessible at https://web.archive.org/web/20071024033938/http://research.amnh.org/herpetology/amphibia/index.php. American Museum of Natural History, New York, USA. (Accessed: July 31, 2008). * eb application 2008. Berkeley, California''Cryptotriton'' Amphi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David B
David Robert Jones (8 January 194710 January 2016), known professionally as David Bowie ( ), was an English singer-songwriter and actor. A leading figure in the music industry, he is regarded as one of the most influential musicians of the 20th century. Bowie was acclaimed by critics and musicians, particularly for his innovative work during the 1970s. His career was marked by reinvention and visual presentation, and his music and stagecraft had a significant impact on popular music. Bowie developed an interest in music from an early age. He studied art, music and design before embarking on a professional career as a musician in 1963. "Space Oddity", released in 1969, was his first top-five entry on the UK Singles Chart. After a period of experimentation, he re-emerged in 1972 during the glam rock era with his flamboyant and androgynous alter ego Ziggy Stardust (character), Ziggy Stardust. The character was spearheaded by the success of Bowie's single "Starman (song), Starma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plethodontidae
Plethodontidae, or lungless salamanders, are a family of salamanders. Most species are native to the Western Hemisphere, from British Columbia to Brazil, although a few species are found in Sardinia, Europe south of the Alps, and South Korea. In terms of number of species, they are by far the largest group of salamanders. Biology Adult lungless salamanders have four limbs, with four toes on the fore limbs, and usually with five on the hind limbs. Within many species, mating and reproduction occur solely on land. Accordingly, many species also lack an aquatic larval stage, a phenomenon known as direct development in which the offspring hatch as fully-formed, miniature adults. Direct development is correlated with changes in the developmental characteristics of plethodontids compared to other families of salamanders including increases in egg size and duration of embryonic development. Additionally, the evolutionary loss of the aquatic larval stage is related to a diminishing dep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Data Deficient
A data deficient (DD) species is one which has been categorized by the International Union for Conservation of Nature (IUCN) as offering insufficient information for a proper assessment of conservation status to be made. This does not necessarily indicate that the species has not been extensively studied; but it does indicate that little or no information is available on the abundance and distribution of the species. The IUCN recommends that care be taken to avoid classing species as "data deficient" when the absence of records may indicate dangerously low abundance: "If the range of a taxon is suspected to be relatively circumscribed, if a considerable period of time has elapsed since the last record of the taxon, threatened status may well be justified""The Categories," in IUCN (1983). (see also precautionary principle). See also * IUCN Red List data deficient species * List of data deficient amphibians * IUCN Red List data deficient species (Annelida) * List of data deficien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptotriton Alvarezdeltoroi
Álvarez del Toro's hidden salamander (''Cryptotriton alvarezdeltoroi''), also known as Álvarez del Toro's salamander is a species of salamander in the family Plethodontidae. It is endemic to Mexico where it is known from its type locality near Jitotol as well as a nearby site on the Mexican Plateau in the Chiapas state. Etymology The specific name, ''alvarezdeltoroi'', is in honor of Mexican herpetologist Miguel Álvarez del Toro. Description The holotype of ''Nototriton alvarezdeltoroi'' (an adult male) measure in snout–vent length and has a long tail. The dorsum and tail are a reddish brown with an irregular, obscure dorsal stripe. The limbs are orange. The snout is blunt with forward-pointing nostrils. Habitat Its natural habitat is very moist cloud forest at elevations of asl. It has also been found at roadsides. Conservation status This rare species is only known from very few specimens. It is threatened by habitat loss Habitat destruction (also termed habi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptotriton Monzoni
''Cryptotriton monzoni'' is a species of salamander in the family Plethodontidae. It is endemic to Guatemala and known only from near its type locality, Cerro del Mono near La Unión, Zacapa Department. The specific name ''monzoni'' honors José Monzón, a Guatemalan entomologist who helped the authors with the fieldwork. Common name Monzon's hidden salamander has been coined for it. Description The holotype is an adult female measuring in snout–vent length. The tail length is . The snout is broadly rounded and the eyes are protuberant. The head is just slightly wider than the neck. The parotoid glands are weakly developed. The limbs are relatively long. Both the fingers and the toes are about moderately extensively webbed and have sub-digital pads. The dorsum is brown and has bluish flecks. The iris is copper. Habitat and conservation The type locality of ''Cryptotriton monzoni'' is a loud forest above sea level. The holotype was found in a bromeliad about three metres ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptotriton Nasalis
Cortes salamander (''Cryptotriton nasalis'') is a species of salamander in the family Plethodontidae. It is found in the Sierra de Omoa in northwestern Honduras and Sierra de Caral in eastern Guatemala, close to the border with Honduras. The vernacular name Cortes salamander refers to the Cortés Department where the type locality is located, whereas the alternative name Cortez' hidden salamander with the spelling "Cortez" and the apostrophe are errors. Taxonomy and systematics ''Cryptotriton nasalis'' was described by Emmett Reid Dunn in 1924 as ''Oedipus nasalis''. ''Nototriton wakei'', known only from the holotype and named for David B. Wake, is considered a junior synonym. Description ''Cryptotriton nasalis'' are tiny emo salamanders. Males measure and adult females in snout–vent length (SVL). The tail is longer than the body in males (range 1.14–1.35 times the SVL) and many females (range 0.80–1.27 times the SVL). The head is moderately long and broad. The nostri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptotriton Necopinus
''Cryptotriton'' is the genus of hidden salamanders in the family Plethodontidae, native to Mexico, Honduras and Guatemala. Most species in this genus are endangered or critically endangered with ''Cryptotriton sierraminensis'' being data deficient according to the IUCN. Species The following seven species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ... are included in this genus: External links * . 2008. Amphibian Species of the World: an Online Reference. Version 5.2 (15 July 2008)''Cryptotriton'' Electronic Database accessible at https://web.archive.org/web/20071024033938/http://research.amnh.org/herpetology/amphibia/index.php. American Museum of Natural History, New York, USA. (Accessed: July 31, 2008). * eb application 2008. Berkeley, California''Cryptotriton'' Amphi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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