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Xenopus Boumbaensis
''Xenopus boumbaensis'', the Mawa clawed frog, is a species of frog in the family Pipidae. It is known from a few localities in central and south-eastern Cameroon, and from north-western Republic of Congo and extreme south-western Central African Republic; it probably occurs more widely in the central African forest belt, but identification is difficult: it is one of the cryptic species that resemble ''Xenopus fraseri'', from which it can be distinguished by chromosome number ( 2n=72) and a male advertisement call of a single note. Etymology The specific name ''boumbaensis'' refers to the type locality (Mawa) that is within the Boumba River drainage. Description Adult males can grow to and females to in snout–vent length. All ''Xenopus'' are characterized by a streamlined and flattened body, a vocal organ specialized for underwater sound production, lateral-line organs, claws on the innermost three toes, and fully webbed toes. The coloration is green with numerous spots ... [...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] |
Above Sea Level
Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric heights''. The combination of unit of measurement and the physical quantity (height) is called "metres above mean sea level" in the metric system, while in United States customary and imperial units it would be called "feet above mean sea level". Mean sea levels are affected by climate change and other factors and change over time. For this and other reasons, recorded measurements of elevation above sea level at a reference time in history might differ from the actual elevation of a given location over sea level at a given moment. Uses Metres above sea level is the standard measurement of the elevation or altitude of: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Flying objects such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of The Republic Of The Congo
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 decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of The Central African Republic
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 declin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Cameroon
Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial animal, 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 re ... [...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] |
Xenopus
''Xenopus'' () (Gk., ξενος, ''xenos''=strange, πους, ''pous''=foot, commonly known as the clawed frog) is a genus of highly aquatic frogs native to sub-Saharan Africa. Twenty species are currently described within it. The two best-known species of this genus are ''Xenopus laevis'' and ''Xenopus tropicalis'', which are commonly studied as model organisms for developmental biology, cell biology, toxicology, neuroscience and for modelling human disease and birth defects. The genus is also known for its polyploidy, with some species having up to 12 sets of chromosomes. Characteristics ''Xenopus laevis'' is a rather inactive creature. It is incredibly hardy and can live up to 15 years. At times the ponds that ''Xenopus laevis'' is found in dry up, compelling it, in the dry season, to burrow into the mud, leaving a tunnel for air. It may lie dormant for up to a year. If the pond dries up in the rainy season, ''Xenopus laevis'' may migrate long distances to another pond, main ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odzala-Kokoua National Park
Odzala-Kokoua National Park (or Odzala National Park) is a national park in the Republic of the Congo. The park was first protected in 1935, declared a biosphere reserve in 1977, and granted official designation by presidential decree in 2001. Odzala-Kokoua has approximately 100 mammals species, and one of the continent's most diverse primate populations. The nonprofit conservation organization African Parks began managing the park in collaboration with the Ministry of Forest Economy, Sustainable Development and Environment of the Republic of the Congo in 2010. Description Odzala-Kokoua is an approximately national park and biosphere reserve in northwestern Republic of the Congo, established in 1935. The park has preserved old-growth rainforest and variable terrain, ranging from tall hills to dense jungle and numerous glades. Odzala-Kokoua has dry forest, savanna, and rainforest ecosystems. The park is managed by African Parks in partnership with the Congolese government. His ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dzanga-Sangha Special Reserve
The Dzanga-Sangha Special Reserve (also known as Dzanga-Sangha Forest Reserve, or Dzanga-Sangha Forest Special Reserve, Dzanga-Sangha Baï, or Dzanga-Sangha Special Forest Reserve) is a protected reserve of southwestern Central African Republic. It was established in 1990 and covers 6865.54 km2. It is one of several areas within the Dzanga-Sangha Complex of Protected Areas (DSCPA), each within its own protective status and along with Lobéké National Park in Cameroon and Nouabalé-Ndoki National Park in Republic of Congo, it is part of the Sangha Trinational Landscape. Other areas within the DSCPA include the Dzanga Ndoki National Park which has two sectors, the Dzanga park and the Ndoki park. A conference of the Ministers of Forests of Central African Forest Commission (COMIFAC) had resolved to establish within the Congo basin, the Sangha River Tri-national Protected area (STN) encompassing these three parks. The forest special reserve is operated by the Central African Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nki National Park
Nki National Park (Parc national de Nki, also Réserve de Nki) is a national park in southeastern Cameroon, located in its East Province. The closest towns to Nki are Yokadouma, Moloundou and Lomie, beyond which are rural lands. Due to its remoteness, Nki has been described as "the last true wilderness." It has a large and varied ecosystem, and it is home to over 265 species of birds, and the forests of Cameroon contain some of the highest population density of forest elephants of any nation with an elephant density of roughly 2.5 per square kilometer for Nki and neighboring Boumba Bek National Park combined. These animals are victims of poaching, which has been a major problem since an economic depression in the 1980s. The indigenous people follow in the footsteps of the poachers, attracted by the financial opportunities. The removal of logging industries from the park, on the other hand, has been a success; it is no longer considered a major threat to Nki's wilderness. History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boumba Bek National Park
Boumba Bek National Park is a List of national parks of Cameroon, national park in extreme southeastern Cameroon, located in its East Province (Cameroon), East Province. History The park was never logged; according to the World Wildlife Fund's scientific advisor in the region, Paul Robinson Ngnegueu, "poaching is the biggest threat to Boumba Bek." This is a result of the late 1980s economic depression in Cameroon. The indigenous people followed the poachers, attracted by the financial opportunities. They would sell their product through "intermediaries" for money and more hunting supplies. In 1995, the park was named an Essential Protection Zone, its first official status. It was not formally established as a national park, however, until the Cameroonian government decreed the creation of Boumba Bek and Nki National Parks on 17 October 2005. Its establishment is a result of a summit held by seven central African leaders in Brazzaville, Republic of Congo, in February 2005. Cameroo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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