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Lake Manyara Biosphere Reserve
The Lake Manyara Biosphere Reserve (established 1981) is a UNESCO Biosphere Reserve in the depression of the East African Rift Valley in the Lake Manyara Basin in Arusha Region of northern Tanzania. The reserve is managed by Tanzanian Lake Manyara National Park. History The biosphere reserve was part of the UNESCO-MAB project "Biosphere Reserves for Biodiversity Conservation and Sustainable Development in Anglophone Africa (BRAAF)" which had the objective to ensure the long-term conservation of biodiversity in including local population in its sustainable use. Several BRAAF projects aimed to promote income-generating activities such as bee-keeping or to control the tick infestation in the livestock of the pastoralist communities. , the human population in the biosphere reserve is estimated to over 250,000 people. With most indigenous people practicing pastoralism and agriculture, these are the most important socio-economic activities in the area. Ethnic groups of the Lake Manyar ... [...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] |
Rift
In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics. Typical rift features are a central linear downfaulted depression, called a graben, or more commonly a half-graben with normal faulting and rift-flank uplifts mainly on one side. Where rifts remain above sea level they form a rift valley, which may be filled by water forming a rift lake. The axis of the rift area may contain volcanic rocks, and active volcanism is a part of many, but not all, active rift systems. Major rifts occur along the central axis of most mid-ocean ridges, where new oceanic crust and lithosphere is created along a divergent boundary between two tectonic plates. ''Failed rifts'' are the result of continental rifting that failed to continue to the point of break-up. Typically the transition from rifting to spreading develops at a triple junction where three converging rifts meet over a hotspot. Two of these evolve to the poi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biosphere Reserves Of Tanzania
The biosphere (from Greek βίος ''bíos'' "life" and σφαῖρα ''sphaira'' "sphere"), also known as the ecosphere (from Greek οἶκος ''oîkos'' "environment" and σφαῖρα), is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth. The biosphere (which is technically a spherical shell) is virtually a closed system with regard to matter, with minimal inputs and outputs. With regard to energy, it is an open system, with photosynthesis capturing solar energy at a rate of around 130 terawatts per year. However it is a self-regulating system close to energetic equilibrium."Biosphere" in ''The Columbia Encyclopedia'', 6th ed. (2004) Columbia University Press. By the most general [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grassland
A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area. Definitions Included among the variety of definitions for grasslands are: * "...any plant community, including harvested forages, in which grasses and/or legumes make up the dominant vegetation." * "...terrestrial ecosystems dominated by herbaceous and shrub vegetation, and maintained by fire, grazing, drought and/or freezing temperatures." (Pilot Assessment of Global Ecosystems, 2000) * "A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodland
A woodland () is, in the broad sense, land covered with trees, or in a narrow sense, synonymous with wood (or in the U.S., the ''plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunlight and limited shade (see differences between British, American, and Australian English explained below). Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of primary or secondary succession. Higher-density areas of trees with a largely closed canopy that provides extensive and nearly continuous shade are often referred to as forests. Extensive efforts by conservationist groups have been made to preserve woodlands from urbanization and agriculture. For example, the woodlands of Northwest Indiana have been preserved as part of the Indiana Dunes. Definitions United Kingdom ''Woodland'' is used in British woodland management to mean tre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riverine
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia Xanthophloea
''Vachellia xanthophloea'' is a tree in the family Fabaceae, commonly known in English as the fever tree. This species of ''Vachellia'' is native to eastern and southern Africa (Botswana, Kenya, Malawi, Mozambique, Somalia, South Africa, Eswatini, Tanzania, Zambia, Zimbabwe). It has also become a landscape tree in other warm climates, outside of its natural range. Description The trees grow to a height of . The characteristic bark is smooth, powdery and greenish yellow, although new twigs are purple, flaking later to reveal the characteristic yellow. It is one of the few trees where photosynthesis takes place in the bark. Straight, white spines grow from the branch nodes in pairs. The leaves are twice compound, with small leaflets (). The flowers are produced in scented pale cream spherical inflorescences, clustered at the nodes and towards the ends of the branches. The pale brown pods contain 5–10 elliptical, flattened green seeds and are long, straight, flat and rather pap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Croton Macrostachyus
''Croton macrostachyus'' is a species of flowering plant native to the mountains of Sub-Saharan Africa. Description ''Croton macrostachyus'' is a deciduous tree. It generally grows 6 to 12 meters tall, and occasionally up to 30 meters. It has a spreading, rounded, and open crown, and a cylindrical bole which can grow up to 100cm in diameter.Tropical Plants Database, Ken Fern. tropical.theferns.info. Accessed 25 November 2022. Range and habitat ''Croton macrostachyus'' ranges across the mountains of Sub-Saharan Africa, including the Guinea Highlands of Guinea, Liberia, and Côte d'Ivoire, the Cameroon Highlands of Cameroon and Nigeria, the highlands of central Angola, and the mountains of eastern Africa from the Ethiopian Highlands through the mountains of the Eastern Rift, Albertine Rift, and Southern Rift to Mount Tumbine in Mozambique and the Eastern Highlands of Zimbabwe. It inhabits Afromontane evergreen forest, ''Brachystegia'' woodland, and wooded grassland. It is often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichilia
''Trichilia'' is a flowering plant genus in the family Meliaceae. These plants are particularly diverse in sub-Saharan Africa and tropical South America. Several species are used in folk medicine and shamanism – e.g. '' T. rubescens'' against malaria, '' T. tocacheana'' as a hallucinogen, and '' T. catigua'' in the aphrodisiac and stimulant catuaba. '' T. emetica'' wood, also known as Natal mahogany or Cape mahogany is the traditional material of choice for Mozambique's famous '' psikhelekedana'' miniature artists. ''Trichilia dregeana'', or forest mahogany also yields timber and is also used in carvings, traditional African musical instruments, household implements, furniture, bats and canoes. Selected species: * ''Trichilia acuminata'' * ''Trichilia areolata'' * ''Trichilia blanchetii'' * ''Trichilia breviflora'' * ''Trichilia bullata'' * ''Trichilia casaretti'' * ''Trichilia catigua'' * ''Trichilia chirriactensis'' * ''Trichilia columata'' Guardi * ''Trichilia discolor' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illegal, Unreported And Unregulated Fishing
Illegal, unreported and unregulated fishing (IUU) is an issue around the world. Fishing industry observers believe IUU occurs in most fisheries, and accounts for up to 30% of total catches in some important fisheries. Illegal fishing takes place when vessels or harvesters operate in violation of the laws of a fishery. This can apply to fisheries that are under the jurisdiction of a coastal state or to high seas fisheries regulated by regional fisheries management organisations (RFMO). According to the UN Food and Agriculture Organization (FAO), Fisheries and Aquaculture Department, illegal fishing has caused losses estimated at US$23 billion per year. Unreported fishing is fishing that has been unreported or misreported to the relevant national authority or RFMO, in contravention of applicable laws and regulations. Unregulated fishing generally refers to fishing by vessels without nationality, vessels flying the flag of a country not party to the RFMO governing that fishing a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Manyara National Park
Lake Manyara National Park is a protected area in Tanzania's Arusha Region, Arusha and Manyara Regions, situated between Lake Manyara and the Great Rift Valley. It is administered by the Tanzania National Parks Authority, and covers an area of including about lake surface. More than 350 bird species have been observed on the lake. History Since the 1920s, Lake Manyara area was used for sports hunting. In 1957, a game reserve was established.World Conservation Monitoring CentrLake Manyara National Park In 1960, it was given National Park status and in 1974 about were added to the southern end. The majority of the land area of the park is a narrow strip running between the Gregory Rift wall to the west and Lake Manyara, an alkaline lake, to the east. The national park only includes the northwest quadrant of the lake, about . It is part of the much larger Lake Manyara Biosphere Reserve, established in 1981 by UNESCO as part of its Man and the Biosphere Programme. Climate There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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