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Azure Tit
The azure tit (''Cyanistes cyanus'') is a passerine bird in the tit family Paridae. It is a widespread and common resident breeder throughout Russia and Central Asia and northwest China, Manchuria and Pakistan. It is found in temperate and subarctic deciduous or mixed woodlands, scrub and marshes. It is resident, and most birds do not migrate. It nests in a tree hole, laying about 10 eggs. The bird is a close sitter, hissing and biting when disturbed. Its food is insects, seeds, small invertebrates, larvae of bugs, and eggs. This 12–13 cm bird is unmistakable. The head, tail corners, wing bars and underparts are white. There is a dark line through the eye, and the upperparts are blue. This is the eastern counterpart of the common Eurasian blue tit. It will hybridise with that species, but the offspring usually show a blue crown, rather than the white of azure tit. The calls are similar to blue tit, calling ' or a scolding '. The song is a ', which has been described as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Simon Pallas
Peter Simon Pallas Fellow of the Royal Society, FRS FRSE (22 September 1741 – 8 September 1811) was a Prussian zoologist and botanist who worked in Russia between 1767 and 1810. Life and work Peter Simon Pallas was born in Berlin, the son of Professor of Surgery Simon Pallas. He studied with private tutors and took an interest in natural history, later attending the University of Halle and the University of Göttingen. In 1760, he moved to the University of Leiden and passed his doctor's degree at the age of 19. Pallas travelled throughout the Netherlands and to London, improving his medical and surgical knowledge. He then settled at The Hague, and his new system of animal classification was praised by Georges Cuvier. Pallas wrote ''Miscellanea Zoologica'' (1766), which included descriptions of several vertebrates new to science which he had discovered in the Dutch museum collections. A planned voyage to southern Africa and the East Indies fell through when his father reca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequence
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and discovery. Knowledge of DNA sequences has become indispensable for basic biological research, DNA Genographic Projects and in numerous applied fields such as medical diagnosis, biotechnology, forensic biology, virology and biological systematics. Comparing healthy and mutated DNA sequences can diagnose different diseases including various cancers, characterize antibody repertoire, and can be used to guide patient treatment. Having a quick way to sequence DNA allows for faster and more individualized medical care to be administered, and for more organisms to be identified and cataloged. The rapid speed of sequencing attained with modern D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Russia
This is a list of the bird species recorded in Russia. The avifauna of Russia include a total of 808 species, 2 of which one are endemic, 68 species are globally threatened, and 2 species are extinct. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of ''The Clements Checklist of Birds of the World'', 2022 edition. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts found in each family account. Accidental species are included in the total species count for Russia. The following tags have been used to highlight several categories. The commonly occurring native species do not fall into any of these categories. *(A) Accidental - a species that rarely or accidentally occurs in Russia *(Ext) Extirpated - a species which no longer occurs in Russia, but other populations still exist elsewhere *(Ex) Extinct - a species which n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanistes
''Cyanistes'' is a genus of birds in the tit family Paridae. The genus was at one time considered as a subgenus of Parus. In 2005 an article describing a molecular phylogenetic study that had examined mitochondrial DNA sequences from members of the tit family, proposed that a number of subgenera including ''Cyanistes'' be elevated to genus status. This proposal was accepted by the International Ornithologists' Union and the British Ornithologists' Union. Species The genus contains three species: The name ''Cyanistes'' was introduced for a subgenus by the German naturalist Jakob Kaup in 1829. The word comes from the classical Greek ''kuanos'' meaning dark-blue. The type species was designated as the Eurasian blue tit The Eurasian blue tit (''Cyanistes caeruleus'') is a small passerine bird in the tit family, Paridae. It is easily recognisable by its blue and yellow plumage and small size. Eurasian blue tits, usually resident and non-migratory birds, are ... by Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helm Identification Guides
The ''Helm Identification Guides'' are a series of books that identify groups of birds. The series include two types of guides, those that are: * Taxonomic, dealing with a particular family of birds on a worldwide scale—most early Helm Guides were this type, as well as many more-recent ones, although some later books deal with identification of such groups on a regional scale only (e.g., ''The Gulls Guide,'' which covers only species in Europe, Asia, and North America) * Geographic, including all bird species in an area (e.g., ''The Birds of the West Indies'') Early volumes were sometimes published under the Croom Helm or Christopher Helm imprints. In addition, a parallel set of guides, very similar in design, was published by Pica Press in the 1990s (marked ''Pica'' in the list below); Pica was later absorbed into A & C Black (now part of Bloomsbury Publishing Plc), and all guides are now marketed as a single series. Several of the books have won the British Birds ''Bird B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museum Wiesbaden
The Museum Wiesbaden is a two-branch museum of art and natural history in the Hessian capital of Wiesbaden, Germany. It is one of the three Hessian State museums, in addition to the museums in Kassel and Darmstadt. History The foundation of the originally three museums traces back to the citizens of the city and to Johann Wolfgang von Goethe, who stayed in Wiesbaden in 1814/1815 for a rehabilitation measure, and worked hard to establish such a cultural institution. In 1825 he persuaded the Frankfurter private collector to donate his extensive collections of works of art, antiquities and in kind to the Duchy of Nassau in return for the payment of an annuity for life. Under the responsibility of the newly founded associations, but controlled by the ducal government, the citizens of Wiesbaden and the region were able to quickly expand these collections. Together with the pieces of the ("Association for Nassauian Antiquity and Historical Research") founded in 1812, three origi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow-breasted Tit
The yellow-breasted tit (''Cyanistes cyanus flavipectus'') is a bird in the family Paridae. It is found in Afghanistan, China, Kazakhstan, Kyrgyzstan, India, Pakistan, Russia, Tajikistan, Turkmenistan, and Uzbekistan. Its natural habitat is temperate forests. It is usually classified as a subspecies of the azure tit The azure tit (''Cyanistes cyanus'') is a passerine bird in the tit family Paridae. It is a widespread and common resident breeder throughout Russia and Central Asia and northwest China, Manchuria and Pakistan. It is found in temperate and sub .... References yellow-breasted tit Birds of Afghanistan Birds of Central Asia Birds of Pakistan yellow-breasted tit yellow-breasted tit Taxonomy articles created by Polbot {{Paridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Tit
The Eurasian blue tit (''Cyanistes caeruleus'') is a small passerine bird in the tit family, Paridae. It is easily recognisable by its blue and yellow plumage and small size. Eurasian blue tits, usually resident and non-migratory birds, are widespread and a common resident breeder throughout temperate and subarctic Europe and the western Palearctic in deciduous or mixed woodlands with a high proportion of oak. They usually nest in tree holes, although they easily adapt to nest boxes where necessary. Their main rival for nests and in the search for food is the larger and more common great tit. The Eurasian blue tit prefers insects and spiders for its diet. Outside the breeding season, they also eat seeds and other vegetable-based foods. The birds are famed for their acrobatic skills, as they can hold on to the outermost branches of trees and shrubs and hang upside down when looking for food. Taxonomy The Eurasian blue tit was described by Carl Linnaeus in 1758 in the 10th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fred Sheldon (ornithologist)
Frederick Halsey "Fred" Sheldon (born 14 December 1951) is an American ornithologist. Early years Sheldon was born a US citizen at Hörsching in Upper Austria. He was educated at Yale University where he obtained a BS degree in Geology & Geophysics in 1974 and a PhD in Biology in 1986. Career Sheldon has served in various academic positions, most notably as Curator of Birds at the Academy of Natural Sciences of Philadelphia and Curator of Genetic Resources at the Museum of Natural Science Louisiana State University (LSU). He became a full curator/professor at LSU in 2000, and is currently Director of the Museum of Natural Sciences. His main areas of research interest are avian systematics and evolution, and the natural history of the birds of the Malay Archipelago, especially those of Borneo. Publications As well as numerous scientific papers, especially in the area of molecular phylogenetics Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, heredit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parus
''Parus'' is a genus of Old World birds in the tit family. It was formerly a large genus containing most of the 50 odd species in the family Paridae. The genus was split into several resurrected genera following the publication of a detailed molecular phylogenetic analysis in 2013. The genus name, ''Parus'', is the Latin for "tit". Taxonomy The genus ''Parus'' was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his ''Systema Naturae''. The genus name is Latin for "tit". Of the 12 species included in the genus by Linnaeus, the type species was designated as the great tit (''Parus major'') by George Robert Gray in 1840. Species The genus now contains the following species: Fossil record *''Parus robustus'' (Pliocene of Csarnota, Hungary) Kessler, E. 2013. Neogene songbirds (Aves, Passeriformes) from Hungary. – Hantkeniana, Budapest, 2013, 8: 37-149. *''Parus parvulus'' (Pliocene of Csarnota, Hungary) *''Parus medius'' (Pliocene of Berem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cytochrome B
Cytochrome b within both molecular and cell biology, is a protein found in the mitochondria of eukaryotic cells. It functions as part of the electron transport chain and is the main subunit of transmembrane cytochrome bc1 and b6f complexes. Function In the mitochondrion of eukaryotes and in aerobic prokaryotes, cytochrome b is a component of respiratory chain complex III () — also known as the bc1 complex or ubiquinol-cytochrome c reductase. In plant chloroplasts and cyanobacteria, there is an analogous protein, cytochrome b6, a component of the plastoquinone-plastocyanin reductase (), also known as the b6f complex. These complexes are involved in electron transport, the pumping of protons to create a proton-motive force ( PMF). This proton gradient is used for the generation of ATP. These complexes play a vital role in cells. Structure Cytochrome b/b6 is an integral membrane protein of approximately 400 amino acid residues that probably has 8 transmembrane segments. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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