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Conraua Derooi
''Conraua derooi'' is a species of frog in the family Conrauidae. It is found in Togo and Ghana. Common name Togo slippery frog has been coined for this species. Even feared to be extinct, a few populations were found in surveys in 2005–2007, after the species had gone unrecorded for more than 20 years. Etymology The Specific name (zoology), specific name ''derooi'' honours Antoon Emeric Marcel De Roo, Antoon De Roo, a Belgian ornithologist who was part of the expedition that discovered the species. Distribution ''Conraua derooi'' is found in southwestern Togo and adjacent southeastern Ghana on the Togo-Volta Highlands, as well as in the Atewa Range in central Ghana. Records of ''Conraua alleni'' from eastern Ghana and Togo refer to this species. The Type locality (biology), type locality is (=Misahöhe) in western Togo. Description ''Conraua derooi'' are large frogs (though much smaller than their relative, the goliath frog ''Conraua goliath''), with males measuring and fem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frog
A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock, molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 Myr, million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from Taxonomy (biology), taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympanum (anatomy)
The tympanum is an external hearing structure in animals such as mammals, birds, some reptiles, some amphibians and some insects. Using sound, vertebrates and many insects are capable of sensing their prey, identifying and locating their predators, warning other individuals, and locating potential mates and rivals by hearing the intentional or unintentional sounds they make. In general, any animal that reacts to sounds or communicates by means of sound, needs to have an auditory mechanism. This typically consists of a membrane capable of vibration known as the tympanum, an air-filled chamber and sensory organs to detect the auditory stimuli. Anurans In frogs and toads, the tympanum is a large external oval shape membrane made up of nonglandular skin. It is located just behind the eye. It does not process sound waves; it simply transmits them to the inner parts of the amphibian's ear, which is protected from the entry of water and other foreign objects. A frog's ear drum works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EDGE Species
Evolutionarily Distinct and Globally Endangered (EDGE) species are animal species which have a high 'EDGE score', a metric combining endangered conservation status with the genetic distinctiveness of the particular taxon. Distinctive species have few closely related species, and EDGE species are often the only surviving member of their genus or even higher taxonomic rank. The extinction of such species would therefore represent a disproportionate loss of unique evolutionary history and biodiversity. Some EDGE species, such as elephants and pandas, are well-known and already receive considerable conservation attention, but many others, such as the vaquita (the world's rarest cetacean) the bumblebee bat (arguably the world's smallest mammal) and the egg-laying long-beaked echidnas, are highly threatened yet remain poorly understood, and are frequently overlooked by existing conservation frameworks. The Zoological Society of London launched the EDGE of Existence Programme in 2007 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of West Africa
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frogs Of Africa
The fauna of Africa, in its broader sense, is all the animals living in Africa and its surrounding seas and islands. The more characteristic African fauna is found in the Afrotropical realm. Lying almost entirely within the tropics, and equally to north and south of the equator creates favourable conditions for rich wildlife. Africa is home to many of the world's most famous fauna in human culture such as lions‚ rhinos‚ cheetahs‚ giraffes‚ antelope, hippos, leopards, zebras‚ and African elephants among many others. Origins and history of African fauna Whereas the earliest traces of life in fossil record of Africa date back to the earliest times, the formation of African fauna as we know it today, began with the splitting up of the Gondwana supercontinent in the mid-Mesozoic era. After that, four to six faunal assemblages, the so-called African Faunal Strata (AFSs) can be distinguished. The isolation of Africa was broken intermittently by discontinuous "filter routes" tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conraua
''Conraua'', known as slippery frogs or giant frogs is a genus of large frogs from sub-Saharan Africa. ''Conraua'' is the only genus in the family Conrauidae. Alternatively, it may be placed in the family Petropedetidae. This genus includes the largest frog of the world, '' Conraua goliath'', which may grow to in snout–vent length and weigh as much as . Four of the seven species in this genus are threatened. Etymology The generic name ''Conraua'' honours Gustav Conrau, a German trader and labour recruiter in Cameroon who was the collector of the holotype of '' Conraua robusta'', the type species of the genus. Species The recognized species are: *''Conraua alleni'' *'' Conraua beccarii'' *'' Conraua crassipes'' *''Conraua derooi'' Hulselmans, 1972 *'' Conraua goliath'' (Boulenger, 1906) – goliath frog *'' Conraua robusta'' Nieden, 1908 – Cameroon slippery frog *'' Conraua sagyimase'' Neira-Salamea, Ofori-Boateng, Kouamé, Blackburn, Segniagbeto, Hillers, Barej, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volta Region
Volta Region (or Volta) is one of Ghana's sixteen administrative regions, with Ho designated as its capital. It is located west of Republic of Togo and to the east of Lake Volta. Divided into 25 administrative districts, the region is multi-ethnic and multilingual, including groups such as the Ewe, the Guan, and the Akan peoples. The Guan peoples include the Lolobi, Likpe, Akpafu, Buem, and Nkonya (now part of Oti region) people. This region was carved out of the Volta Region in December 2018 by the New Patriotic Party. Background The Volta region was formed by the state union of the former British Togoland which was part of the German protectorate of Togoland. It was administered as part of the Gold Coast by the British and later renamed Trans-Volta Togoland. Demographics The native and largest ethnic group of the Volta Region (Togoland / British Togoland) are the Ewe people (68.5% of the population). They consist of several sub groups such as the Anlo Ewe, Tongu Ewe, We ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider pu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tadpole
A tadpole is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found in adult amphibians such as a lateral line, gills and swimming tails. As they undergo metamorphosis, they start to develop functional lungs for breathing air, and the diet of tadpoles changes drastically. A few amphibians, such as some members of the frog family Brevicipitidae, undergo direct development i.e., they do not undergo a free-living larval stage as tadpoles instead emerging from eggs as fully formed "froglet" miniatures of the adult morphology. Some other species hatch into tadpoles underneath the skin of the female adult or are kept in a pouch until after metamorphosis. Having no hard skeletons, it might be expected that tadpole fossils would not exist. However, traces of biofilms have been preserved and fossil tadpoles have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goliath Frog
The goliath frog (''Conraua goliath''), otherwise known commonly as the giant slippery frog and the goliath bullfrog, is a species of frog in the family Conrauidae. The goliath frog is the largest living frog. Specimens can grow up to in length from snout to vent, and weigh up to . This species has a relatively small habitat range in Cameroon and Equatorial Guinea. Its numbers are dwindling due to habitat destruction and its collection for food and the pet trade. Description Sexual dimorphism between the sexes is minimal. In a sample of 15 individuals, weights ranged between , and snout-vent lengths were between . Their eyes can be nearly in diameter. The conspicuous tympanum has a diameter around and is separated from the eye by about in adults. Goliath frog eggs and tadpoles are about the same size as other frogs despite their very large adult form. A lateral fold extends from the eye to the posterior portion of the tympanum. Toes are fully webbed, with large interdigi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conrauidae
''Conraua'', known as slippery frogs or giant frogs is a genus of large frogs from sub-Saharan Africa. ''Conraua'' is the only genus in the family Conrauidae. Alternatively, it may be placed in the family Petropedetidae. This genus includes the largest frog of the world, '' Conraua goliath'', which may grow to in snout–vent length and weigh as much as . Four of the seven species in this genus are threatened. Etymology The generic name ''Conraua'' honours Gustav Conrau, a German trader and labour recruiter in Cameroon who was the collector of the holotype of '' Conraua robusta'', the type species of the genus. Species The recognized species are: *''Conraua alleni'' *'' Conraua beccarii'' *'' Conraua crassipes'' *''Conraua derooi'' Hulselmans, 1972 *'' Conraua goliath'' (Boulenger, 1906) – goliath frog *'' Conraua robusta'' Nieden, 1908 – Cameroon slippery frog *'' Conraua sagyimase'' Neira-Salamea, Ofori-Boateng, Kouamé, Blackburn, Segniagbeto, Hillers, Barej, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Locality (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is almost a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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