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Thaumasius
''Thaumasius'' is a genus in the family of Hummingbirds, and consists of 2 species. Taxonomy and species list These two species were formerly placed in the genus '' Leucippus''. A molecular phylogenetic study published in 2014 found that ''Leucippus'' was polyphyletic. To resolve the polyphyly A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of converg ... these two species were moved to the resurrected genus ''Thaumasius'' that had been introduced by Philip Sclater in 1879 with the spot-throated hummingbird as the type species. References Thaumasius Bird genera Taxa named by Philip Sclater {{hummingbird-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumasius
''Thaumasius'' is a genus in the family of Hummingbirds, and consists of 2 species. Taxonomy and species list These two species were formerly placed in the genus '' Leucippus''. A molecular phylogenetic study published in 2014 found that ''Leucippus'' was polyphyletic. To resolve the polyphyly A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of converg ... these two species were moved to the resurrected genus ''Thaumasius'' that had been introduced by Philip Sclater in 1879 with the spot-throated hummingbird as the type species. References Thaumasius Bird genera Taxa named by Philip Sclater {{hummingbird-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spot-throated Hummingbird
The spot-throated hummingbird (''Thaumasius taczanowskii'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is endemic to Peru but there are uncorroborated sightings in Ecuador.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved July 24, 2022 Taxonomy and systematics The spot-throated hummingbird was formerly placed in the genus '' Leucippus''. A molecular phylogenetic study published in 2014 found that ''Leucippus'' was polyphyletic. To resolve the polyphyly the spot-throated hummingbird and the Tumbes hummingbird (''Thaumasius baeri'') were eventually moved by most taxonomic systems to the resurrected genus '' Thaumasius''.Clements, J. F., P.C. Rasmussen, T. S. Schulenberg, M. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumasius Taczanowskii
The spot-throated hummingbird (''Thaumasius taczanowskii'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is endemic to Peru but there are uncorroborated sightings in Ecuador.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved July 24, 2022 Taxonomy and systematics The spot-throated hummingbird was formerly placed in the genus '' Leucippus''. A molecular phylogenetic study published in 2014 found that ''Leucippus'' was polyphyletic. To resolve the polyphyly the spot-throated hummingbird and the Tumbes hummingbird (''Thaumasius baeri'') were eventually moved by most taxonomic systems to the resurrected genus ''Thaumasius''.Clements, J. F., P.C. Rasmussen, T. S. Schulenberg, M. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tumbes Hummingbird
The Tumbes hummingbird (''Thaumasius baeri'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Ecuador and Peru. Taxonomy and systematics This species was formerly placed in the genus '' Leucippus''. A molecular phylogenetic study published in 2014 found that ''Leucippus'' was polyphyletic. To resolve the polyphyly the Tumbes hummingbird and the spot-throated hummingbird (''Taphrospilus hypostictus'') were moved by most taxonomic systems to the resurrected genus ''Thaumasius''. However, BirdLife International's ''Handbook of the Birds of the World'' retains it in ''Leucippus''.Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021Remsen, J. V., Jr., J. I. Areta, E. Bonac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumasius Baeri
The Tumbes hummingbird (''Thaumasius baeri'') is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Ecuador and Peru. Taxonomy and systematics This species was formerly placed in the genus '' Leucippus''. A molecular phylogenetic study published in 2014 found that ''Leucippus'' was polyphyletic. To resolve the polyphyly the Tumbes hummingbird and the spot-throated hummingbird (''Taphrospilus hypostictus'') were moved by most taxonomic systems to the resurrected genus ''Thaumasius''. However, BirdLife International's ''Handbook of the Birds of the World'' retains it in ''Leucippus''.Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021Remsen, J. V., Jr., J. I. Areta, E. Bonac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Sclater
Philip Lutley Sclater (4 November 1829 – 27 June 1913) was an England, English lawyer and zoologist. In zoology, he was an expert ornithologist, and identified the main zoogeographic regions of the world. He was Secretary of the Zoological Society of London for 42 years, from 1860–1902. Early life Sclater was born at Tangier Park, in Wootton St Lawrence, Hampshire, where his father William Lutley Sclater had a country house. George Sclater-Booth, 1st Baron Basing was Philip's elder brother. Philip grew up at Hoddington House where he took an early interest in birds. He was educated in school at Twyford and at thirteen went to Winchester College and later Corpus Christi College, Oxford where he studied scientific ornithology under Hugh Edwin Strickland. In 1851 he began to study law and was admitted a Fellow of Corpus Christi College. In 1856 he travelled to America and visited Lake Superior and the upper St. Croix River (Wisconsin–Minnesota), St. Croix River, cano ... [...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] |
Hummingbird
Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics around the equator. They are small birds, with most species measuring in length. The smallest extant hummingbird species is the bee hummingbird, which weighs less than . The largest hummingbird species is the giant hummingbird, weighing . They are specialized for feeding on flower nectar, but all species also consume flying insects or spiders. Hummingbirds split from their sister group, the swifts and treeswifts, around 42 million years ago. The common ancestor of extant hummingbirds is estimated to have lived 22 million years ago in South America. They are known as hummingbirds because of the humming sound created by their beating wings, which flap at high frequencies audible to humans. They hover in mid-air at rapid wing-flapping rate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucippus (bird)
Leucippus (; , ''Leúkippos''; ) was a pre-Socratic Greek philosopher. He is traditionally credited as the founder of atomism, which he developed with his student Democritus. Leucippus divided the world into two entities: atoms, indivisible particles that make up all things, and the void, the nothingness that exists between the atoms. He developed his philosophy as a response to the Eleatics, who believed that all things are one and the void does not exist. Leucippus's ideas were influential in ancient and Renaissance philosophy. Leucippus was the first Western philosopher to develop the concept of atoms, but his ideas only bear a superficial resemblance to modern atomic theory. Leucippus's atoms come in infinitely many forms and exist in constant motion, creating a deterministic world in which everything is caused by the collisions of atoms. Leucippus described the beginning of the cosmos as a vortex of atoms that formed the Earth, the Sun, the stars, and other cel ... [...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 framew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphyletic
A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of convergent evolution. The arrangement of the members of a polyphyletic group is called a polyphyly .. ource for pronunciation./ref> 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 photosynthetic plants, and 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 revisions of the classification schemes. Researchers concerned more with ecology than with systema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphyly
A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of convergent evolution. The arrangement of the members of a polyphyletic group is called a polyphyly .. ource for pronunciation./ref> 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 photosynthetic plants, and 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 revisions of the classification schemes. Researchers concerned more with ecology than with system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
