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Censky's Ameiva
Censky's ameiva (''Pholidoscelis corax''), also known as the Little Scrub Island ground lizard, is a species of lizard in the family Teiidae. It is indigenous to the Caribbean. Description ''P. corax'' is a melanistic species, superficially similar in its dark coloration and scalation to '' Pholidoscelis atratus'' and '' Pholidoscelis corvinus'', other species also found on small, barren Caribbean islands. This is believed to be due to independent adaptation to the similar local environments. Taxonomy Censky's ameiva was described in 1992 as ''Ameiva corax''.Censky EJ, Paulson DR (1992). "Revision of ''Ameiva'' (Reptilia: Teiidae) of the Anguilla Bank, West Indies". ''Ann. Carnegie Mus.'' 61: 177-195. (''Ameiva corax'', new species, p. 187). Its common name refers to one of its authors, Ellen Joan Censky. In 2016, the species was moved to ''Pholidoscelis'' based on genetic sequencing and phylogenetic analyses. Geographic range ''P. corax'' is endemic to the tiny islet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellen Joan Censky
Ellen is a female given name, a diminutive of Elizabeth, Eleanor, Elena and Helen. Ellen was the 609th most popular name in the U.S. and the 17th in Sweden in 2004. People named Ellen include: *Ellen Adarna (born 1988), Filipino actress *Ellen Alaküla (1927–2011), Estonian actress *Ellen Palmer Allerton (1835–1893), American poet *Ellen Allien (born 1969), German electronic musician and music producer *Ellen Anckarsvärd (1833-1898), Swedish feminist *Ellen Andersen (1898–1989), Danish museum curator *Ellen Anderson (born 1959), American politician *Ellen Auerbach (1906–2004), German-born American photographer *Ellen Baake (born 1961), German mathematical biologist *Ellen S. Baker (born 1953), American physician and astronaut *Ellen Barkin (born 1954), American actress *Ellen Bass (born 1947), American poet and author *Ellen A. Dayton Blair (1837–1926), social reformer and art teacher *Ellen Bontje (born 1958), Dutch equestrian *Ellen Burka (1921–2016), Dutch and Can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found 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 be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Of Anguilla
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, historically combined with that of modern amphibians, is called herpetology. The earliest known proto-reptiles originated around 31 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Dennis Roy Paulson
In biology Biology is the scientific study of life. It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field. For instance, all organisms are made up of cells that process hereditary i ..., a taxon (back-formation from ''Taxonomy (biology), taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular Taxonomic rank, ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Ellen Joan Censky
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reptiles Described In 1992
Reptiles, as most commonly defined are the animals in the Class (biology), class Reptilia ( ), a paraphyletic grouping comprising all sauropsid, sauropsids except birds. Living reptiles comprise turtles, crocodilians, Squamata, squamates (lizards and snakes) and rhynchocephalians (tuatara). As of March 2022, the Reptile Database includes about 11,700 species. In the traditional Linnaean taxonomy, Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern Cladistics, cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile Order (biology), orders, historically combined with that of modern amphi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Powell (herpetologist)
Robert ″Bob″ Powell (born 17 August 1948 in Germany) is an American herpetologist. His main research interest is in the herpetofauna of the Caribbean. Career Powell was born in Germany but raised in Missouri. He received his Bachelor of Arts in 1970 from the University of Missouri and his Master of Arts in 1971 from the University of Missouri–Kansas City. In 1984, he received his Ph.D. from the University of Missouri with the thesis ″Variation in Spotted Salamanders (''Ambystoma maculatum'') from Missouri". In 1989, he became professor and coordinator in the biology department at the Avila College in Kansas City. From 1994 until 2018 he was professor for biology at the Avila University in Kansas City. In 2005, he described the gecko species ''Gonatodes daudini'' from Union Island, Saint Vincent and the Grenadines Saint Vincent and the Grenadines () is an island country in the Caribbean. It is located in the southeast Windward Islands of the Lesser Antilles, which lie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anguilla
Anguilla ( ) is a British Overseas Territory in the Caribbean. It is one of the most northerly of the Leeward Islands in the Lesser Antilles, lying east of Puerto Rico and the Virgin Islands and directly north of Saint Martin. The territory consists of the main island of Anguilla, approximately long by wide at its widest point, together with a number of much smaller islands and cays with no permanent population. The territory's capital is The Valley. The total land area of the territory is , with a population of approximately (). Etymology The native Arawak name for the island was ''Malliouhana''. In reference to the island's shape, the Italian ', meaning "eel" (in turn, from the Latin diminutive of ''anguis'', "snake") was used as its name. History Anguilla was first settled by Indigenous Amerindian peoples who migrated from South America. The earliest Native American artefacts found on Anguilla have been dated to around 1300 BC; remains of settlements da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrub Island, Anguilla
Scrub Island is an island lying off the eastern tip of the main island of Anguilla, a British Overseas Territory in the Caribbean. It is easily reached by boat. Privately owned, the remains of an abandoned air field still exist. There are several abandoned houses on the island, mainly due to damage from hurricanes. There is no electricity or plumbing. Fauna The island has been identified as an Important Bird Area by BirdLife International, mainly because of its nesting seabirds. These are laughing gulls as well as royal, roseate and least terns. Resident landbirds include Caribbean elaenias and pearly-eyed thrashers. The island's five species of reptiles comprise the Anguilla Bank ameiva, ''Anolis gingivinus'', little dwarf gecko, island dwarf gecko and the endangered leeward island racer. Green and leatherback turtles have been recorded. Feral goats and rats are present. Whale Whales are a widely distributed and diverse group of fully aquatic placental ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Scrub Island
Little Scrub Island is an island in Anguilla, a British Overseas Territory in the Caribbean. The island is to the north-east of the main island of Anguilla, and from Scrub Island. Flora and fauna The island was completely stripped of flora by Hurricane Luis in 1995 and Hurricane Lenny in 1999. Since then, the flora has recovered. Morning glory ('' Ipomea violaceae'') and prickly pear cactus (''Opuntia dillenii'') are found, being vital to the Little Scrub ground lizard (''Ameiva corax'') which is unique to the island. The island provides a nesting site for various birds, including the brown noddy, bridled tern, sooty tern, roseate tern, and the brown booby. Several dove (''Zenaida aurita'') nests were also identified during a 2010 survey, along with a single Audubon's shearwater nest. Brown pelican The brown pelican (''Pelecanus occidentalis'') is a bird of the pelican family, Pelecanidae, one of three species found in the Americas and one of two that feed by diving int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetics
In biology, phylogenetics (; from Greek language, Greek wikt:φυλή, φυλή/wikt:φῦλον, φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, Protein, protein Amino acid, amino acid sequences, or Morphology (biology), morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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