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Blackthroat
The blackthroat (''Calliope obscura''), also known as the black-throated robin or black-throated blue robin, is a species of bird in the family Muscicapidae. It breeds in north-central China but its wintering grounds are uncertain. It has been recorded as a vagrant in northwest Thailand. Its natural habitat is bamboo thickets within coniferous forest at altitudes of 3000–3,400 metres. It is threatened by habitat loss. The species was discovered in 1891, but for the next 120 years only a handful of individuals were seen and to date no female has been conclusively identified. So little was known of it that it earned the title " Asia's most enigmatic robin". In June 2011 a team of scientists discovered its breeding grounds in the Qinling Mountains, Shaanxi Province, north central China. Seven singing males were seen in Foping and a further seven in Changqing Nature Reserves- almost equal to the total number seen previously. In 2014 a female and breeding pair were sighted. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calliope (genus)
''Calliope'' is a genus of passerine birds in the Old World flycatcher family Muscicapidae. The species were previously placed in the genus '' Luscinia''. A large molecular phylogenetic study published in 2010 found that ''Luscinia'' as defined in 2003 by Edward C. Dickinson was not monophyletic. The genus ''Calliope'', with the type species, ''Calliope calliope'', was reinstated to accommodate a well-defined clade. Although the blackthroat (''Calliope obscura'') had not been included in the 2010 phylogenetic analysis, a subsequent study found that the firethroat and the blackthroat were sister species and not colour morphs of the same species as some publications had previously suggested. The genus ''Calliope'' was introduced by the English ornithologist John Gould in 1836. ''Calliope'', from classical Greek meaning beautiful-voiced, was one of the muses in Greek mythology and presided over eloquence and heroic poetry. The genus contains the following five species: * Himal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qinling Mountains
The Qinling () or Qin Mountains, formerly known as the Nanshan ("Southern Mountains"), are a major east–west mountain range in southern Shaanxi Province, China. The mountains mark the divide between the drainage basins of the Yangtze and Yellow River systems, providing a natural boundary between North and South China and support a huge variety of plant and wildlife, some of which is found nowhere else on earth. To the north is the densely populated Wei River valley, an ancient center of Chinese civilization. To the south is the Han River valley. To the west is the line of mountains along the northern edge of the Tibetan Plateau. To the east are the lower Funiu and Dabie Mountains, which rise out of the coastal plain. The northern side of the range is prone to hot weather, the rain shadow cast by the physical barrier of the mountains dictating that the land to the north has a semi-arid climate, and is consequently somewhat impoverished in regard to fertility and species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaanxi Province
Shaanxi is a province in north Northwestern China. It borders the province-level divisions of Inner Mongolia to the north; Shanxi and Henan to the east; Hubei, Chongqing, and Sichuan to the south; and Gansu and Ningxia to the west. Shaanxi covers an area of over with about 37 million people, the 16th-largest in China. Xi'anwhich includes the sites of the former capitals Fenghao and Chang'anis the provincial capital and largest city in Northwest China and also one of the oldest cities in China and the oldest of the Historical capitals of China, Four Ancient Capitals, being the capital for the Western Zhou, Western Han, Sima Jin, Jin, Sui dynasty, Sui and Tang dynasty, Tang List of Chinese dynasties, dynasties. Xianyang, which served as the capital of the Qin dynasty (221–206 BC), is just north across the Wei River. The other Prefectures of China, prefecture-level prefecture-level city, cities into which the province is divided are Ankang, Baoji, Hanzhong, Shangluo, To ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1891
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have furt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A '' polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetic
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical fra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luscinia
''Luscinia '' is a genus of smallish passerine birds, containing the nightingales and relatives. Formerly classed as members of the thrush family Turdidae, they are now considered to be Old World flycatchers (Muscicapidae) of the chat subfamily (Saxicolinae). The chats are a lineage of Old World flycatchers that has evolved convergently to thrushes. Taxonomy and systematics The word ''Luscinia'' was used for nightingales and similar birds in Classical Latin (e.g. in the AD 70s ''Naturalis Historia'' by Pliny the Elder), if not earlier. Etymologically, it might be derived from ''luscus'' (Latin for "half-blind", "half-understood" etc.) or ''clueō'' (Latin for "to be well-known") + (probably) Latin ''canō'' "to sing". Hence, it could be translated as "little-seen s in the twilightsongster" or "famous songster". The genus ''Luscinia'' was introduced by the English naturalist Thomas Forster in 1817. The type species is the common nightingale (''Luscinia megarhynchos''). De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. 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 of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binomial Name
In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (often shortened to just "binomial"), a binomen, name, or a scientific name; more informally, it is also called a Latin name. In the International Code of Zoological Nomenclature (ICZN), the system is also called nomenclature, with an "n" before the "al" in "binominal", which is a typographic error, meaning "two-name naming system". The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus ''Homo'' and within this genus to the species ''Hom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valentin Bianchi
Valentin Lvovich Bianchi (Russian: Валенти́н Льво́вич Биа́нки; 18 February 1857 – 10 January 1920) was a Russian ornithologist. He is honoured in the common and scientific names of Bianchi's warbler (''Seicercus valentini''), described by Ernst Hartert. Of Italian descent, Bianchi graduated from the Imperial Military Medical Academy as a military doctor (1882). There years later, he was working as a general practitioner in the rural district of Staritsa, when Professor Eduard Brandt, learning about his interest in ornithology, invited him to join the staff of his alma mater. He moved to the Zoological Museum in 1887. Bianchi was the Head of the Department of Ornithology at the Imperial Academy of Sciences from 1896 to 1920. He worked mainly on birds from Middle and Central Asia. An active member of the Russian Geographical Society, he took part in its major enterprises such as the Toll Expedition (1900) and the Kamchatka Expedition of 1908. His so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal scientific description of a newly encountered species, typically articulated through a scientific publication. Its purpose is to provide a clear description of a new species of organism and explain how it differs from species that have been previously described or related species. For a species to be considered valid, a species description must follow established guidelines and naming conventions dictated by relevant nomenclature codes. These include the International Code of Zoological Nomenclature (ICZN) for animals, the International Code of Nomenclature for algae, fungi, and plants (ICN) for plants, and the International Committee on Taxonomy of Viruses (ICTV) for viruses. A species description often includes photographs or other illustrations of type material and information regarding where this material is deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
