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Trioceros Werneri
''Trioceros werneri'', the Wemer's chameleon or Wemer's three-horned chameleon, is a species of chameleon that is endemic to forests and nearby gardens at altitudes of in the Eastern Arc Mountains of Tanzania. The adult male has three distinct "horns", whereas the female has no or only a single short horn on the nose. Like many (but not all) '' Trioceros'' species of highlands, the female ''T. werneri'' does not lay eggs, but instead gives birth to live young, typically 15–20 at a time. Taxonomy The three long annulated horns in the male ''T. werneri'' makes it superficially similar to '' T. jacksonii'' and '' T. johnstoni'', and to extent also to the short-horned '' T. fuelleborni'' and the smooth-horned '' T. oweni'', but they are not close relatives. Although currently recognized as a single relatively widespread species, it is considered likely that ''T. werneri'' is a species complex and a taxonomic Taxonomy is the practice and science of categorization or clas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Tornier
Gustav Tornier ( Dombrowken (today Dąbrowa Chełmińska, Poland), 9 May 1858 – Berlin, 25 April 1938) was a German zoologist and herpetologist. Life and career Tornier was born in the Kingdom of Prussia as the eldest child of Gottlob Adolf Tornier, a member of the Prussian landed gentry in Dombrowken, a small village near Bromberg (now Bydgoszcz) in West Prussia. His father and mother had both died by 1877, leaving the nineteen-year-old Gustav as the master of a house and estate. The attached commitments kept him from commencing his university studies until the relatively advanced age of twenty-four. Enrolling at the university of Heidelberg in 1882, Tornier took his time, and he did not receive his doctorate for another ten years. In the meantime he wrote a monograph on evolution in support of Wilhelm Roux, ''Der Kampf mit der Nahrung'' ("The battle with/for Food", 1884). In the book, he took an uncompromisingly Darwinist stance, and applied the principles of natural selectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chameleon
Chameleons or chamaeleons (family Chamaeleonidae) are a distinctive and highly specialized clade of Old World lizards with 202 species described as of June 2015. The members of this family are best known for their distinct range of colors, being capable of shifting to different hues and degrees of brightness. The large number of species in the family exhibit considerable variability in their capacity to change color. For some, it is more of a shift of brightness (shades of brown); for others, a plethora of color-combinations (reds, yellows, greens, blues) can be seen. Chameleons are distinguished by their zygodactylous feet, their prehensile tail, their laterally compressed bodies, their head casques, their projectile tongues, their swaying gait, and crests or horns on their brow and snout. Chameleons' eyes are independently mobile, and because of this there are two separate, individual images that the brain is analyzing of the chameleon’s environment. When hunting prey, they ... [...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] |
Eastern Arc Mountains
The Eastern Arc Mountains is a chain of mountains found in Kenya and Tanzania. The chain runs from northeast to southwest, with the Taita Hills being in Kenya and the other ranges being in Tanzania. They are delimited on the southwest by the fault complex represented by the Makambako Gap that separates them from the Kipengere Range. To the northeast, they are delimited by more recent volcanism represented by Mount Kilimanjaro. The chain is considered a Tentative World Heritage Site. Mountain ranges The Eastern Arc Mountains forms a roughly crescent-shaped arc and consists of: # Taita Hills # North and South Pare Mountains # East and West Usambara Mountains # Nguru Mountains # Ukaguru Mountains # Uluguru Mountains # Uvidunda Mountains # Rubeho Mountains # Malundwe Mountain # Udzungwa Mountains # Mahenge Mountains Geology These mountain ranges are the oldest in East Africa, and though physically separated from each other, share a similar geomorphology and ecology. They were for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanzania
Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands and the Indian Ocean to the east; Mozambique and Malawi to the south; Zambia to the southwest; and Rwanda, Burundi, and the Democratic Republic of the Congo to the west. Mount Kilimanjaro, Africa's highest mountain, is in northeastern Tanzania. According to the United Nations, Tanzania has a population of million, making it the most populous country located entirely south of the equator. Many important hominid fossils have been found in Tanzania, such as 6-million-year-old Pliocene hominid fossils. The genus Australopithecus ranged across Africa between 4 and 2 million years ago, and the oldest remains of the genus ''Homo'' are found near Lake Olduvai. Following the rise of '' Homo erectus'' 1.8 million years ago, humanity spread ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trioceros
''Trioceros'' is a genus of lizards in the family Chamaeleonidae. ''Trioceros'' was considered a subgenus of the genus ''Chamaeleo'' until 2009, when it was elevated to full genus level. Species and subspecies The following species and subspecies are recognized as being valid. ''Nota bene'': In the above list, a binomial authority In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ... or trinomial authority in parentheses indicates that the species or subspecies was originally described in a genus other than ''Trioceros''. Footnotes References * (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . * (2009). "A re-appraisal of the systematics of the African genus ''Chamaeleo'' (Reptilia: Chamaeleonidae)". ''Zootaxa'' 2079: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jackson's Chameleon
Jackson's chameleon (''Trioceros jacksonii''), also known as Jackson's horned chameleon, three-horned chameleon or Kikuyu three-horned chameleon, is a species of chameleon (family Chamaeleonidae) native to East Africa, but also introduced to Hawaii, Florida, and California.Spawls S, Howell K, Drewes RC, Ashe J (2002). ''A Field Guide to the Reptiles and Amphibian of East Africa''. Academic Press. pp. 227-228. Global Invasive Species Database. (2010). Chamaeleo jacksonii (reptile)'' Retrieved 16 November 2014.California Herps: A Guide to the Amphibians and Reptiles of California. '' Retrieved 20 April 2017. Taxonomy Jackson's chameleon was described by Belgian-British zoologist George Albert Boulenger in 1896. (''Chamaeleon jacksonii'', new species). Etymology The generic name, ''Trioceros'', is derived from the Greek τρί- (''tri-'') meaning "three" and κέρας (''kéras'') meaning "horns". This is in reference to the three horns found on the heads of males. The specifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trioceros Johnstoni
''Trioceros johnstoni'', known commonly as Johnston's chameleon, Johnston's three-horned chameleon, and the Ruwenzori three-horned chameleon, is a species of chameleon, a lizard in the family Chamaeleonidae. The species is endemic to highlands in the Albertine Rift in central Africa. It reaches up to in total length (including tail). Only the adult male has three horns. The female is hornless. Taxonomy and etymology The three long annulated horns in the male ''T. johnstoni'' makes it superficially similar to '' T. jacksonii'' and '' T. werneri'', and to an extent also to the short-horned '' T. fuelleborni'' and the smooth-horned '' T. oweni'', but they are not close relatives. Its nearest relative is the hornless '' T. ituriensis''. The specific name ''johnstoni'' was given in honour of the British explorer Harry Johnston. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trioceros Fuelleborni
''Trioceros fuelleborni'', also known commonly as the flapjack chameleon, the Ngosi Volcano chameleon, and the Poroto three-horned chameleon, is a species of lizard in the family Chamaeleonidae. The species is endemic to Tanzania. Etymology The specific name, ''fuelleborni'', is in honor of Prussian-born physician Friedrich Fülleborn, who worked in Tanganyika (now Tanzania) from 1896 to 1900. Beolens, Bo; Watkins, Michael, Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . ("Flapjack Chameleon ''Chamaeleo fuelleborni'' ", p. 95). Geographic range ''T. fuelleborni'' is found in southwestern Tanzania in the Poroto Mountains and on volcanoes of the Rungwe Volcanic Province. Habitat The preferred natural habitat of ''T. fuelleborni'' is forest, at altitudes of , but it has also been found in trees and bushes in suburban areas near forest. Reproduction ''T. fuelleborni'' is ovoviviparous Ovoviviparity, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Owen's Chameleon
Owen's chameleon (''Trioceros oweni''), also Common name, commonly known as Owen's three-horned chameleon, is a species of chameleon in the Family (biology), family Chamaeleonidae. The species is native to sub-Saharan Africa. Named after British naval officer and explorer William Fitzwilliam Owen, it was first described in 1831 by the naturalist John Edward Gray, and is the type species of the genus ''Trioceros''. Distribution and habitat Owen's chameleon can be found in much of tropical sub-Saharan Africa, from the Niger Delta in Nigeria in the north, to Angola in the south, and Burundi in the east. It inhabits dense evergreen and semi-deciduous forests at altitudes lower than above sea level, usually living in large trees. The Type locality (biology), type locality for the species is the island of Bioko in Equatorial Guinea. Description and behavior Like many other chameleons, Owen's chameleon has a prehensile tail and a single claw on each toe. Males have three smooth horns, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), that is complex but it is not a species complex. A species complex is in most cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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