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Ctenosaura Conspicuosa
''Ctenosaura'' is a lizard genus commonly known as spinytail iguanas or ctenosaurs. The genus is part of the large lizard family Iguanidae and is native to Mexico and Central America. The name is derived from two Greek words: (), meaning "comb" (referring to the comblike spines on the lizard's back and tail), and (), meaning "lizard". Description The species range in size (total length, including the tail) from about to well over . The distinctive feature of this genus is the presence of enlarged, spiny scales on the tail. Ecology and natural history Ctenosaurs are generally omnivorous, feeding on fruits, flowers, foliage, and small animals. While studying physiological correlates of locomotion in lizards, a "burst speed" of 34.6 km/h (21.5 miles/h) was recorded by a black spiny-tail iguana (''Ctenosaura similis''), which is the highest speed reported for a lizard.Garland, Theodore., Jr. 1984. ''Physiological correlates of locomotory performance in a lizard: an allome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arend Friedrich August Wiegmann
Arend Friedrich August Wiegmann (2 June 1802 – 15 January 1841) was a German zoologist and herpetologist born in Braunschweig. He studied medicine and philology at the University of Leipzig, and afterwards was an assistant to Martin Lichtenstein (1780–1857) in Berlin. In 1828 he became a professor at University of Cologne, and two years later was an extraordinary professor at the Friedrich Wilhelm University in Berlin. Wiegmann specialized in the study of herpetology and mammalogy. In 1835, he founded, together with other scholars, the zoological periodical '' Archiv für Naturgeschichte'', also known as "Wiegmann's Archive". With Johann Friedrich Ruthe (1788–1859) he wrote an important textbook of zoology called ''Handbuch der Zoologie'', and in 1834 Wiegmann published ''Herpetologia Mexicana'', a monograph on the reptiles of Mexico. In 1841 he died of tuberculosis at the age of 38 in Berlin. His father Arend Friedrich Wiegmann (1771–1853) was a German research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roger Conant (herpetologist)
Roger Conant (May 6, 1909 – December 19, 2003) was an American herpetologist, author, educator and conservationist. He was Director Emeritus of the Philadelphia Zoo and adjunct professor at the University of New Mexico. He wrote one of the first comprehensive field guides for North American reptiles in 1958 entitled: ''A Field Guide to Reptiles and Amphibians of Eastern and Central North America'', in the Peterson Field Guide series. Biography Born in Mamaroneck, New York, Conant lost his father when he was young. When he was a teenager he took a job at a local zoo to help his mother make ends meet, which, along with participating in the Boy Scouts of America, began his lifelong passion for reptiles. He was the first Eagle Scout in Monmouth County Council, New Jersey in 1924. He moved to Toledo, Ohio in 1929 and worked as Curator of Reptiles, and later General Curator at the Toledo Zoo from 1929 to 1935. In 1935 he returned to Philadelphia and became the Curator of Reptiles at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utila
Utila () is the smallest of Honduras' major Bay Islands, after Roatán and Guanaja, in a region that marks the south end of the Mesoamerican Barrier Reef System, the second-largest in the world. It has been documented in history since Columbus' fourth voyage. Geography The eastern end of the island is capped by a thin veneer of basaltic volcanic rocks, erupted from several pyroclastic cones including Pumpkin Hill which forms the highest point on the island. Demographics The people of Utila are of African (Garifuna), English and Dutch descent. At the time of the 2013 Honduras census, Utila municipality had a population of 3,947. Of these, 82.32% were Mestizo, 13.42% White, 2.10% Black or Afro-Honduran, 0.26% Indigenous and 1.91% others. Environment The island is part of the Islas de la Bahía y Cayos Cochinos Important Bird Area (IBA), designated as such by BirdLife International because it supports significant populations of white-crowned pigeons, chimney swifts and yel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonhard Stejneger
Leonhard Hess Stejneger (30 October 1851 – 28 February 1943) was a Norwegian-born American ornithologist, herpetologist and zoologist. Stejneger specialized in vertebrate natural history studies. He gained his greatest reputation with reptiles and amphibians. Wetmore, Alexander (1945). "Leonhard Hess Stejneger (1851–1943)". ''Biographical Memoir. Nat. Acad. Sci.'' 24: 145–195PDF/ref> Early life and family Stejneger was born in Bergen, Norway. His father was Peter Stamer Steineger, a merchant and auditor; his mother was Ingeborg Catharine (née Hess). Leonhard was the eldest of seven children. His sister Agnes Steineger was a Norwegian artist. Until 1880, the Steineger family had been one of the wealthy families in Bergen; at that time business reverses led to the father declaring bankruptcy. Stejneger attended the Smith Theological School in Bergen from 1859 to 1860, and Bergen Latin School until 1869. His interests in zoology developed early. By age sixteen, he h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ctenosaura Bakeri
''Ctenosaura bakeri'', also known as the Utila spiny-tailed iguana, Baker's spinytail iguana, swamper or ''wishiwilly del suampo'', is a critically endangered species of spinytail iguana endemic to the island of Utila, one of the Islas de la Bahía off the coast of Honduras in the Caribbean. The Utila iguana is the only species of iguana and one of only two species of lizard to exclusively inhabit brackish mangrove swamps, forced there due to competition from larger species. It is the smallest of the three species of iguana found on Utila, and unique among spiny-tailed iguanas as it is born a dark color as opposed to bright green or yellow. It is arboreal and primarily herbivorous, although it can be an opportunistic carnivore. Males may grow up to in length, while females are smaller, with a length of up to . Eggs are laid in sandy beaches and hatch about 60–76 days later, with the hatchlings returning to live in the mangrove forests. Brought to the brink of extinction by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Shaw (biologist)
George Kearsley Shaw (10 December 1751 – 22 July 1813) was an English botanist and zoologist. Life Shaw was born at Bierton, Buckinghamshire, and was educated at Magdalen Hall, Oxford, receiving his M.A. in 1772. He took up the profession of medical practitioner. In 1786, he became the assistant lecturer in botany at the University of Oxford. He became a fellow of the Royal Society in 1789. In 1791, Shaw became assistant keeper of the natural history department at the British Museum, succeeding Edward Whitaker Gray as keeper in 1806. He found that most of the items donated to the museum by Hans Sloane were in very bad condition. Medical and anatomical material was sent to the museum at the Royal College of Surgeons of England, Royal College of Surgeons, but many of the stuffed animals and birds had deteriorated and had to be burnt. He was succeeded after his death by his assistant Charles Konig. Shaw's library of natural history books and some of his specimens and equipment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nyíregyháza Zoo - Black Iguana
Nyíregyháza (, ) is a city with county rights in northeastern Hungary and the county capital of Szabolcs-Szatmár-Bereg. With a population of 118,001, it is the Cities of Hungary#Largest cities in Hungary, seventh-largest city in Hungary and the second largest in the Northern Great Plain region. Its development has been ongoing since the 18th century, making it the economic and cultural center of the region. Nyíregyháza Zoo, with over 500 species, is recognized throughout Europe. Geography Nyíregyháza is located in Szabolcs-Szatmár-Bereg County in the northern Plain region, which also comprises Hajdú-Bihar County and Jász-Nagykun-Szolnok County. It is located in the center of Nyírség as an agricultural town. The boundaries of the city are often understood as a very broad frame, because generally the near suburbs are included in them. It is located at the intersections of routes 4, 41, 36, and 38, making the city easy to reach, lying at the crossroads to Carpathian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cachryx
''Cachryx'' is a genus of lizards in the family Iguanidae, native to the Mexico's Yucatán Peninsula and adjacent Guatemala. Taxonomy There are two described species in this genus. Until 2017, they were genererally included in ''Ctenosaura ''Ctenosaura'' is a lizard genus commonly known as spinytail iguanas or ctenosaurs. The genus is part of the large lizard family Iguanidae and is native to Mexico and Central America. The name is derived from two Greek words: (), meaning "com ...''. * Campeche spiny-tailed iguana, '' Cachryx alfredschmidti'' (Kohler, 1995) * Yucatán spinytail iguana, '' Cachryx defensor'' (Cope, 1866) References {{Taxonbar, from=Q57578910 Lizard genera Taxa named by Edward Drinker Cope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympatry
In biology, two closely related species or populations are considered sympatric when they exist in the same geographic area and thus frequently encounter each other. An initially interbreeding population that splits into two or more distinct species sharing a common range exemplifies sympatric speciation. Such speciation may be a product of reproductive isolation – which prevents hybrid offspring from being viable or able to reproduce, thereby reducing gene flow – that results in genetic divergence. Sympatric speciation may, but need not, arise through secondary contact, which refers to speciation or divergence in allopatry followed by range expansions leading to an area of sympatry. Sympatric species or taxa in secondary contact may or may not interbreed. Types of populations Four main types of population pairs exist in nature. Sympatric populations (or species) contrast with parapatric populations, which contact one another in adjacent but not shared ranges and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allopatry
Allopatric speciation () – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow. Various geographic changes can arise such as the movement of continents, and the formation of mountains, islands, bodies of water, or glaciers. Human activity such as agriculture or developments can also change the distribution of species populations. These factors can substantially alter a region's geography, resulting in the separation of a species population into isolated subpopulations. The vicariant populations then undergo genetic changes as they become subjected to different selective pressures, experience genetic drift, and accumulate different mutations in the separated populations' gene pools. The barriers prevent the exchange of genetic information between th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach to taxonomy adopted by most biological fields. The common ancestor may be an individual, a population, or a species (extinct or Extant taxon, extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed ''monophyletic'' (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming Taxon, taxa that are not clades; that is, taxa that are not Monophyly, monophyletic. Some of the relationships between organisms that the molecul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
