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Mimus Melanotis
''Mimus'' is a genus of passerine birds in the family Mimidae. It contains the typical mockingbirds. Taxonomy The genus ''Mimus'' was introduced in 1826 by the German zoologist Friedrich Boie to contain a single species, ''Turdus polyglottis'' Linnaeus, 1758, the northern mockingbird, which becomes the type species by monotypy. The genus name is Latin for "mimic". A molecular phylogenetic study published in 2006 found that the genus ''Nesomimus'', containing the species endemic to the Galápagos islands, was embedded in the genus ''Mimus''. The genera were therefore merged under the earlier name, ''Mimus''. The position of the Galápagos species within the genus ''Mimus'' was confirmed by a more comprehensive study published in 2016. The genus contains 14 species: * Brown-backed mockingbird, ''Mimus dorsalis'' * Bahama mockingbird, ''Mimus gundlachii'' * Long-tailed mockingbird, ''Mimus longicaudatus'' * Patagonian mockingbird, ''Mimus patagonicus'' * Chilean mockingbird, ''Mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilean Mockingbird
The Chilean mockingbird (''Mimus thenca''), locally known as ''tenca'', is a species of bird in the family Mimidae. It primarily inhabits Chile's northern half, though there are sightings in Argentina. Taxonomy and systematics The Chilean mockingbird is monotypic. Description The Chilean mockingbird is long and weighs . The male is somewhat larger than the female. Adults have a wide whitish supercilium. Their crown, neck, and back are brownish gray with darker streaks and their rump browner. The wings and tail are blackish. The wings show two narrow bars when folded. The outermost tail feathers have white edges and most of the others have white tips. The throat is whitish, the chest brownish gray, the belly dirty white, and the flanks buffy with blackish streaks. The juvenile is similar but more buffy below with more streaks. Distribution and habitat The Chilean mockingbird is found in Chile from Copiapó Province in the Atacama Region south to Los Lagos, Puerto Montt, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-banded Mockingbird
The white-banded mockingbird (''Mimus triurus'') is a species of bird in the family Mimidae. It is found in Argentina, Bolivia, Brazil, Chile, Paraguay, and Uruguay.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 21 June 2021. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved June 24, 2021 Taxonomy and systematics The white-banded mockingbird and the brown-backed mockingbird (''Mimus dorsalis'') are sister species. Both are monotypic.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 23 May 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved May 24, 2021 Description The white-b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living Bird
''Living Bird'' is a quarterly magazine published by the Cornell Lab of Ornithology. Editorial director Gustave Axelson leads the team of writers, editors, and designers that produce the magazine. Printed editions of ''Living Bird'' are distributed to members of the Cornell Lab of Ornithology. The photographs and artwork on the front and back covers as well as accompanying articles have been described as "stunning" and "beautiful". The magazine includes editorials and in-depth journalism on birds and bird conservation. From 2008 onward, issues of the magazine are alsavailable online From 1962 through 1981, the magazine was published annually (with volume 19 being a multi-year edition covering 1980 and 1981). Since 1982, ''Living Bird'' has been published quarterly. The magazine contains articles on birds, birding, science, conservation, people, art, photography, travel, and reviews of birding gear and books. See also * List of ornithology journals References External l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Selection
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the Heredity, heritable traits characteristic of a population over generations. Charles Darwin popularised the term "natural selection", contrasting it with selective breeding, artificial selection, which is intentional, whereas natural selection is not. Genetic diversity, Variation of traits, both Genotype, genotypic and phenotypic, exists within all populations of organisms. However, some traits are more likely to facilitate survival and reproductive success. Thus, these traits are passed the next generation. These traits can also become more Allele frequency, common within a population if the environment that favours these traits remains fixed. If new traits become more favoured due to changes in a specific Ecological niche, niche, microevolution occurs. If new traits become more favoured due to changes in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolution
Evolution is the change in the heritable Phenotypic trait, characteristics of biological populations over successive generations. It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. The process of evolution has given rise to biodiversity at every level of biological organisation. The scientific theory of evolution by natural selection was conceived independently by two British naturalists, Charles Darwin and Alfred Russel Wallace, in the mid-19th century as an explanation for why organisms are adapted to their physical and biological environments. The theory was first set out in detail in Darwin's book ''On the Origin of Species''. Evolution by natural selection is established by observable facts about living organisms: (1) more offspring are often produced than can possibly survive; (2) phenotypic variatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Darwin
Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English Natural history#Before 1900, naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended from a Common descent, common ancestor is now generally accepted and considered a fundamental scientific concept. In a joint presentation with Alfred Russel Wallace, he introduced his scientific theory that this Phylogenetics, branching pattern of evolution resulted from a process he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.. Darwin has been described as one of the most influential figures in human history and was honoured by Burials and memorials in Westminster Abbey, burial in Westminster Abbey. Darwin's early interest in nature led him to neglect his medical education at the University of Edinburgh Medical Schoo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Cristóbal Mockingbird
The San Cristóbal mockingbird (''Mimus melanotis'') or Chatham mockingbird, is a species of bird in the family Mimidae. It is endemic to San Cristóbal Island in the Galápagos Islands.Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 15, 2019 Taxonomy and systematics The San Cristóbal mockingbird, Galápagos mockingbird (''Mimus parvulus''), Espanola mockingbird (''M. macdonaldi''), and Floreana mockingbird (''M. trifasciatus'') were previously placed in genus ''Nesomimus'' and were considered conspecific. They now form a superspecies. The San Cristóbal mockingbird is monotypic.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 23 May 2021. A classif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floreana Mockingbird
The Floreana mockingbird (''Mimus trifasciatus'') or the Charles Island mockingbird, is a species of bird in the family Mimidae. It was endemic to Floreana, one of the Galápagos Islands, but now is found only on two nearby islets, Campeón and Gardner-near-Floreana.Cody, M. L. and C. J. Sharpe (2020). Floreana Mockingbird (''Mimus trifasciatus''), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.chamoc1.01 retrieved July 24, 2021Remsen, 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 23 May 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved May 24, 2021 The Floreana mockingbird is also known as Darwin's mockingbird, as it was the argua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galápagos Mockingbird
The Galápagos mockingbird (''Mimus parvulus'') is a species of bird in the family Mimidae. It is endemic to the Galápagos Islands, Ecuador. Systematics The Galápagos mockingbird is one of four mockingbird species endemic to the Galápagos Islands. These four are all closely related, and DNA evidence shows they likely all descended from an ancestor species which reached the islands in a single colonization event. When John Gould first described the species in 1837, based on specimens brought back from the islands by Charles Darwin, he named it ''Orpheus parvulus''. However, because of the rules of binomial nomenclature, ''Orpheus'' was declared a junior synonym, and in 1841, George Robert Gray moved all of the ''Orpheus'' mockingbirds to the older genus ''Mimus''. In 1890, Robert Ridgway created the genus ''Nesomimus'' for the mockingbirds found on the Galápagos Islands, and most taxonomists adopted the change. Recent DNA studies, however, show that the ''Nesomimus'' mockingbi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Española Mockingbird
The Española mockingbird (''Mimus macdonaldi''), also known as the Hood mockingbird, is a species of bird in the family Mimidae. It is Endemism, endemic to Española Island in the Galápagos Islands, Ecuador, and it is one of four closely related mockingbird species endemic to the Galápagos archipelago. It is found in dry forests and is omnivorous, though it primarily is a carnivore or scavenger. The species has a highly territorial social structure and has no fear of humans. It is the only species of Galápagos mockingbird that Charles Darwin did not see or collect on Second voyage of HMS Beagle, the voyage of HMS ''Beagle''. Taxonomy The Española mockingbird was species description, formally described in 1890 by the American ornithologist Robert Ridgway based on a specimen collected by naturalists on the USS Albatross (1882), USS Albatross on the island of Española Island, Española in the Galápagos Islands. Ridgway coined the binomial name ''Nesomimus macdonaldi'' where th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galápagos Islands
The Galápagos Islands () are an archipelago of volcanic islands in the Eastern Pacific, located around the equator, west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with a population of slightly over 33,000 (2020). The province is divided into the Cantons of Ecuador, cantons of San Cristóbal Island, San Cristóbal, Santa Cruz Island (Galápagos), Santa Cruz, and Isabela Island (Galápagos), Isabela, the three most populated islands in the chain. The Galápagos are famous for their large number of Endemism, endemic species, which were studied by Charles Darwin in the 1830s and inception of Darwin's theory, inspired his theory of evolution by means of natural selection. All of these islands are protected as part of Ecuador's Galápagos National Park and Galápagos Marine Reserve, Marine Reserve. Thus far, there is no firm evidence that Polynesian expansion, Polynesians or the indigenous peoples of South America, Indigenous pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
