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Eye Of Kuruman
The Eye of Kuruman () is a spring in the town of Kuruman (part of the Ga-Segonyana Local Municipality) in the province of Northern Cape, South Africa. Currently, it is known as the largest natural spring in the Southern Hemisphere; although the Te Waikoropupū Springs in Golden Bay, New Zealand has been reliably measured at an average flow some 60 times greater (). The spring forms a small lake in the middle of the town, directly on the N14 road and is located in a fenced park. It has a daily flow of about of crystal-clear, potable water. Water from the spring supplies the town of Kuruman. History The town of Kuruman is located on the border of South Africa’s Northern Cape and North West provinces. The year 1895 was the only time in recorded history where the stream was constant throughout and moved from The Eye, down the stream Kuruman river, Molopo River, Orange River and finally into the Atlantic Ocean. Originally, Tswana herders used the large spring as a water ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuruman
Kuruman is a small town in the Northern Cape province of South Africa. It is known for its scenery and the Eye of Kuruman, a geological feature that brings water from deep underground. The abundance of water produces an unexpected swathe of green amidst the barren plains and is known as the "Oasis of the Kalahari". It was at first a mission station of the London Missionary Society founded by Robert Moffat (missionary), Robert Moffat in 1821 in South Africa, 1821. It was also the place where David Livingstone arrived for his first position as a missionary in 1841 in South Africa, 1841. The Kuruman River, which is dry except for flash floods after heavy rain, is named after the town. Origins Kuruman is regarded as the "Oasis of the Kalahari". It is set out on the Ghaap Plateau and receives its water source from a spring called "The Eye" which rises in a cave in the semidesert thornveld area in the Kalahari region. Kuruman is the main town in the area and the spring gives about 20 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apartheid
Apartheid ( , especially South African English: , ; , ) was a system of institutionalised racial segregation that existed in South Africa and South West Africa (now Namibia) from 1948 to the early 1990s. It was characterised by an authoritarian political culture based on ''baasskap'' ( 'boss-ship' or 'boss-hood'), which ensured that South Africa was dominated politically, socially, and economically by the nation's minority White South Africans, white population. Under this minoritarianism, minoritarian system, white citizens held the highest status, followed by Indian South Africans, Indians, Coloureds and Ethnic groups in South Africa#Black South Africans, black Africans, in that order. The economic legacy and social effects of apartheid continue to the present day, particularly Inequality in post-apartheid South Africa, inequality. Broadly speaking, apartheid was delineated into ''petty apartheid'', which entailed the segregation of public facilities and social ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Detritivores
Detritivores (also known as detrivores, detritophages, detritus feeders or detritus eaters) are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces). There are many kinds of invertebrates, vertebrates, and plants that eat detritus or carry out coprophagy. By doing so, all these detritivores contribute to decomposition and the nutrient cycles. Detritivores should be distinguished from other decomposers, such as many species of bacteria, fungi and protists, which are unable to ingest discrete lumps of matter. Instead, these other decomposers live by absorbing and metabolizing on a molecular scale (saprotrophic nutrition). The terms ''detritivore'' and ''decomposer'' are often used interchangeably, but they describe different organisms. Detritivores are usually arthropods and help in the process of remineralization. Detritivores perform the first stage of remineralization, by fragmenting the dead plant matter, allowing decompo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhagovelia
''Rhagovelia'' is a genus of smaller water striders in the family Veliidae. There are at least 390 described species in ''Rhagovelia''. File:Rhagovelia whirling in a swarm.webm, Rhagovelia can be gregarious and form swarms. Morton Arboretum, Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ... Evolution Origins The origins of the genus are among water striders of Veliidae family without propelling fans on their legs. Evolution from water striders Genes 'geisha' and 'mother-of-geisha' The duplication of genes, called by researchers 'geisha' and 'mother-of-geisha', caused evolutionary creation of propelling fans on middle pair of water strider's legs which in its turn has made able for species in the genus to walk across more fast-flowing and turbulent streams. See also * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tilapia
Tilapia ( ) is the common name for nearly a hundred species of cichlid fish from the coelotilapine, coptodonine, heterotilapine, oreochromine, pelmatolapiine, and tilapiine tribes (formerly all were "Tilapiini"), with the economically most important species placed in the Coptodonini and Oreochromini. Tilapia are mainly freshwater fish native to Africa and the Middle East, inhabiting shallow streams, ponds, rivers, and lakes, and less commonly found living in brackish water. Historically, they have been of major importance in artisanal fishing in Africa, and they are of increasing importance in aquaculture and aquaponics. Tilapia can become a problematic invasive species in new warm-water habitats such as Australia, whether deliberately or accidentally introduced, but generally not in temperate climates due to their inability to survive in cold water. Traditionally a popular and affordable food in the Philippines with a mild taste, tilapia has been the fourth-most consume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudocrenilabrus Philander
''Pseudocrenilabrus philander'' or the southern mouth-brooder is a small species of haplochromine cichlid found in southern and central Africa. It was first described by the German-Dutch zoologist Max Carl Wilhelm Weber in 1897. Distribution Southern Africa from the Orange River system and southern Natal northwards up to the southern tributaries of the Congo and lagoons and rivers associated with Lake Malawi, but it does not occur in the lake itself. Also in Lake Rukwa. Subspecies Three subspecies are generally accepted but there are isolated populations in a number of areas which may be distinct enough to be classified as subspecies. The three subspecies are *''Pseudocrenilabrus philander philander'' ( Weber. 1897), native to streams flowing towards the Indian Ocean from the Zambezi River Delta southward to the vicinity of the city of Durban, South Africa. *''Pseudocrenilabrus philander dispersus'' ( Trewavas, 1936), native to streams flowing towards the Atlantic Ocean from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarias Gariepinus
''Clarias gariepinus'' or African sharptooth catfish is a species of catfish of the family Clariidae, the airbreathing catfishes. Distribution They are found throughout Africa and the Middle East, and live in freshwater lakes, rivers, and swamps, as well as human-made habitats, such as oxidation ponds or even urban sewage systems. The African sharptooth catfish was introduced all over the world in the early 1980s for aquaculture purposes, so is found in countries far outside its natural habitat, such as Brazil, Vietnam, Indonesia, and India. In countries where native species of ''Clarias'' occur, such as Indonesia, the sharptooth catfish may be distinguished; In Indonesia, it is referred to as ''lele dumbo''. Description The African sharptooth catfish is a large, eel-like fish, usually of dark gray or black coloration on the back, fading to a white belly. In Africa, this catfish has been reported as being second in size only to the vundu of the Zambesian waters, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miniopterus
''Miniopterus'', known as the bent-winged or long winged bats, is the sole genus of the family Miniopteridae. They are small flying insectivorous mammals, micro-bats of the order Chiroptera, with wings over twice the length of the body. The genus had been placed in its own subfamily among the vespertilionid bats, as Miniopterinae, but is now classified as its own family. Taxonomy The genus was erected in 1837 by Charles L. Bonaparte. In the first systematic revision of the genus, published in a monograph of ''Miniopterus'' in 1858 by Robert F. Tomes, the author reallocated specimens and described new taxa. A new systematic arrangement was produced in an extensive study of poorly known chiropterans of the Indo-Austral region by James E. Hill in 1985, the greater resolution of the genus being determined by the British Museum of Natural History's acquisition of new series of specimens collected in Fiji, the New Hebrides and New Caledonia and the extensive collection made in New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Bent-wing Bat
The common bent-wing bat (''Miniopterus schreibersii''), also known as the Schreibers's long-fingered bat or Schreibers's bat, is a species of insectivorous bat. They appear to have dispersed from a subtropical origin and distributed throughout the southern Palearctic, Ethiopic, Oriental, and Australian regions. In Europe, it is present in the southern half on the continent from Iberia to the Caucasus, with the largest populations found in the warmer Mediterranean area. The common and scientific names honor Carl Franz Anton Ritter von Schreibers. Taxonomy There are 11 recognised subspecies of the common bent-winged bat. * ''Miniopterus schreibersii schreibersii'' * ''Miniopterus schreibersii blepotis'' * ''Miniopterus schreibersii chinensis'' * ''Miniopterus schreibersii dasythrix'' * ''Miniopterus schreibersii eschscholtzii'' * ''Miniopterus schreibersii haradai'' * ''Miniopterus schreibersii japoniae'' * ''Miniopterus schreibersii orsinii'' * ''Miniopterus schreibersii parvipe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humidity
Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. Humidity indicates the likelihood for precipitation (meteorology), precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest. The same amount of water vapor results in higher relative humidity in cool air than warm air. A related parameter is the dew point. The amount of water vapor needed to achieve saturation increases as the temperature increases. As the temperature of a parcel of air decreases it will eventually reach the saturation point without adding or losing water mass. The amount of water vapor contained within a parcel of air can vary significantly. For example, a parcel of air near saturation may contain 8 g of water per cubic metre of air at , and 28 g of water per cubic metre of air at Three primary measurements of humidity are widely employed: abso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eye Of Kuruman Fish
An eye is a sensory organ that allows an organism to perceive visual perception, visual information. It detects light and converts it into electro-chemical impulses in neurons (neurones). It is part of an organism's visual system. In higher organisms, the eye is a complex optics, optical system that collects light from the surrounding environment, regulates its intensity through a Iris (anatomy), diaphragm, Focus (optics), focuses it through an adjustable assembly of Lens (anatomy), lenses to form an image, converts this image into a set of electrical signals, and transmits these signals to the brain through neural pathways that connect the eye via the optic nerve to the visual cortex and other areas of the brain. Eyes with resolving power have come in ten fundamentally different forms, classified into compound eyes and non-compound eyes. Compound eyes are made up of multiple small visual units, and are common on insects and crustaceans. Non-compound eyes have a single lens a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
