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White-shouldered Starling
The white-shouldered starling (''Sturnia sinensis'') is a species of bird in the starling family Sturnidae. It breeds in southern China and northern Vietnam; it winters in Southeast Asia. Taxonomy The white-shouldered starling was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's ''Systema Naturae''. He placed it with the orioles in the genus ''Oriolus'' and coined the binomial name ''Oriolus sinensis''. The specific epithet ''sinensis'' is Modern Latin for "Chinese". Gmelin based his description on "Le Kink" from China that had been described in 1775 by the French polymath the Comte de Buffon in his ''Histoire Naturelle des Oiseaux''. A hand-coloured engraving by François-Nicolas Martinet was published to accompany Buffon's text. The white-shouldered starling was formerly placed in the genus ''Sturnus''. A molecular phylogenetic study published in 2008 found the genus was polyphyletic. In the reog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Friedrich Gmelin
Johann Friedrich Gmelin (8 August 1748 – 1 November 1804) was a German natural history, naturalist, chemist, botanist, entomologist, herpetologist, and malacologist. Education Johann Friedrich Gmelin was born as the eldest son of Philipp Friedrich Gmelin in 1748 in Tübingen. He studied medicine under his father at University of Tübingen and graduated with a Master's degree in 1768, with a thesis entitled: ', defended under the presidency of Ferdinand Christoph Oetinger, whom he thanks with the words '. Career In 1769, Gmelin became an adjunct professor of medicine at University of Tübingen. In 1773, he became professor of philosophy and adjunct professor of medicine at University of Göttingen. He was promoted to full professor of medicine and professor of chemistry, botany, and mineralogy in 1778. He died in 1804 in Göttingen and is buried there in the Albanifriedhof, Albani cemetery with his wife Rosine Louise Gmelin (1755–1828, née Schott). Johann Friedrich Gm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sturnus
''Sturnus'' is a genus of starlings. As discussed below, the Taxonomy (biology), taxonomy of this group is complex, and other authorities differ considerably in which species they place in this genus, and in the species boundaries within ''Sturnus''. The genus name ''Sturnus'' is Latin for "starling". This genus has representatives across most of Eurasia and one species, the Common starling, common or European starling, has been introduced to North America, South Africa, Australia and New Zealand. The more northerly breeding species are completely or partially Bird migration, migratory, wintering in warmer regions. The ''Sturnus'' starlings are terrestrial species; they walk rather than hop, and have modifications to the skull and its muscles for open-bill probing. The latter adaptation has facilitated the spread of this genus from humid tropical southern Asia to cooler regions of Europe and Asia. Starlings nest in holes in trees or buildings. They are Omnivore, omnivorous and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1788
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 furth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least-concern Species
A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being a focus of wildlife conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the " Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15,636) in the IUCN database still use the code "LR/lc", which indicates they have not been re- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated as subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific name, infraspecific ranks, such as variety (botany), variety, may be named. In bacteriology and virology, under standard International Code of Nomenclature of Prokaryotes, bacterial nomenclature and virus clas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
René Lesson
René Primevère Lesson (20 March 1794 – 28 April 1849) was a French surgery, surgeon, natural history, naturalist, ornithologist, and herpetologist. Biography Lesson was born at Rochefort, Charente-Maritime, Rochefort, and entered the Naval Medical School in Rochefort at the age of sixteen. He served in the French Navy during the Napoleonic Wars; in 1811, he was third surgeon on the frigate ''Saale'', and in 1813, was second surgeon on the ''Regulus''.Persée Un pharmacien de la marine et voyageur naturaliste : R.-P Lesson In 1816, Lesson changed his classification to pharmacist. He served on Louis Isidore Duperrey, Duperrey's round-the-world voyage of French ship Astrolabe (1811), ''La Coquille'' (1822–1825), of which he collected natural history specimens with his fellow surge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sturnia
''Sturnia'' is a genus of Asian birds in the starling family Sturnidae. It is sometimes merged with ''Sturnus''. Taxonomy The genus ''Sturnia'' was introduced in 1837 by the French naturalist René Lesson. He designated the type species as ''Pastor elegans'' Lesson, 1834. This is a Synonym (taxonomy), junior synonym of ''Oriolus sinensis'' Johann Friedrich Gmelin, Gmelin, 1778, the white-shouldered starling. The genus name is from Latin ''sturnus'' meaning "starling". The old genus' placement with the starlings was found to be polyphyletic, resulting in changes in the placement. A 2008 study places the following species within this genus: The genus contains five species: Former taxonomic treatments have included: * White-faced starling, ''Sturnia albofrontata''. * Daurian starling, ''Sturnia sturnina''. * Chestnut-cheeked starling, ''Sturnia philippensis''. If the first of these is included, it seems highly warranted to include in ''Sturnia'' also the monotypic genera ''Leuc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical syste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphyletic
A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as Homoplasy, homoplasies, which are explained as a result of convergent evolution. The arrangement of the members of a polyphyletic group is called a polyphyly .. [Source for pronunciation.] It is contrasted with monophyly and paraphyly. For example, the biological characteristic of warm-bloodedness evolved separately in the ancestors of mammals and the ancestors of birds; "warm-blooded animals" is therefore a polyphyletic grouping. Other examples of polyphyletic groups are algae, C4 photosynthesis, C4 photosynthetic plants, and Xenarthra#Evolutionary relationships, edentates. Many taxonomists aim to avoid homoplasies in grouping taxa together, with a goal to identify and eliminate groups that are found to be polyphyletic. This is often the stimulus for major re ... [...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] |
