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Mafia Island
Mafia Island or Chole Shamba (''Kisiwa cha Mafia'', in Swahili) is an island of The Mafia Archipelago located in Mafia District in the southern Pwani Region of Tanzania across the Mafia Channel. The island is the third largest in Tanzanian ocean territory, but is not administratively included within the semi-autonomous region of Zanzibar, which has been politically separate since 1890. Mafia Island forms the largest part of Mafia District, one of the six administrative districts in the Pwani Region. As the Mafia Archipelago's main island, it's sometimes called Chole Shamba, meaning ''Chole farmlands'' in Swahili. This is in opposition to the historic settlement of ''Chole Mjini'' (Chole town) on Chole Island inside Mafia Bay. The island's population is over 65,000. The economy is based on fishing, subsistence agriculture and the market in Kilindoni. The island attracts some tourists, mainly scuba divers, birdwatchers, game fishermen, and people seeking relaxation. Geogra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Of Zanj
The Sea of Zanj (; ) is a former name for the portion of the western Indian Ocean adjacent to the region in the African Great Lakes referred to by medieval Arab geographers as Zanj. Article in Islamic World Encyclopedia The Sea of Zanj was deemed a fearful zone by Arab mariners and legends regarding dangers in the waters abounded, especially near its far southern limits.Al-Masudi, ''Meadows of Gold and Mines of Gems'', vol. 1, p. 234 Geography The term was applied to the sea expanses near the eastern portion of the A ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rufiji River
The Rufiji River lies entirely within Tanzania. It is also the largest and longest river in the country. The river is formed by the confluence of the Kilombero and Luwegu rivers. It is approximately long, with its source in southwestern Tanzania and its mouth on the Indian Ocean opposite Mafia Island across the Mafia Channel, in Pwani Region. Its principal tributary is the Great Ruaha River. It is navigable for approximately . The Rufiji river is approximately south of Dar es Salaam. The river's delta contains the largest mangrove forest in eastern Africa. History A branch of ancient sea routes led down the East African coast called "Azania" by the Greeks and Romans in the 1st century CE as described in the Periplus of the Erythraean Sea (and, very probably, zh, 澤散, Zesan in the 3rd century by the Chinese), at least as far as the port known to the Romans as Rhapta, which was probably located in the delta of the Rufiji River in modern Tanzania. During the First Wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terek Sandpiper
The Terek sandpiper (''Xenus cinereus'') is a small migratory Palearctic wader 245px, A flock of Red_knot.html" ;"title="Dunlins and Red knot">Dunlins and Red knots Waders or shorebirds are birds of the order Charadriiformes commonly found wikt:wade#Etymology 1, wading along shorelines and mudflats in order to foraging, ... species and is the Monotypic taxon, only member of the genus ''Xenus''. It is named after the Terek River which flows into the west of the Caspian Sea, as it was first observed around this area. Taxonomy The Terek sandpiper was species description, formally described and illustrated in 1775 by the German naturalist Johann Anton Güldenstädt under the binomial name ''Scolopax cinerea''. He reported that he had seen pairs breeding at the mouth of the Terek (river), Terek River where it flows into the Caspian Sea. It is now the only species placed in the genus ''Xenus'' that was introduced in 1829 by the German naturalist Johann Jakob Kaup. The genus name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Reef Egret
The western reef heron (''Egretta gularis''), also called the western reef egret, is a medium-sized heron found in southern Europe, Africa and parts of Asia. It has a mainly coastal distribution and occurs in several plumage forms: a slaty-grey plumage which can only be confused with the rather uncommon dark morph of the little egret (''Egretta garzetta''); a white form which can look very similar to the little egret, although the reef heron's bill tends to be paler and larger; and a black form with a white throat, ''E. g. gularis'', found in West Africa. There are also differences in size, structure and foraging behaviour. There have been suggestions that the species hybridizes with the little egret, and based on this, some authors treat ''schistacea'' and ''gularis'' as subspecies of ''Egretta garzetta''. Works that consider the western reef heron as a valid species include the nominate ''gularis'' and ''schistacea'' as subspecies. Description This bird has two plumage colou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BirdLife International
BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding important sites for birds, maintaining and restoring key bird habitats, and empowering conservationists worldwide. It has a membership of more than 2.5 million people across List of BirdLife International national partner organisations, 116 country partner organizations, including the Royal Society for the Protection of Birds, the Wild Bird Society of Japan, the National Audubon Society, and American Bird Conservancy. BirdLife International has identified 13,000 Important Bird Area, Important Bird and Biodiversity Areas and is the official International Union for Conservation of Nature's IUCN Red List, Red List authority for birds. BirdLife International has established that 1,375 bird species (13% of the total) are threatened with extinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Important Bird Area
An Important Bird and Biodiversity Area (IBA) is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations. IBA was developed and sites are identified by BirdLife International. There are over 13,000 IBAs worldwide. These sites are small enough to be entirely conserved and differ in their character, habitat or ornithological importance from the surrounding habitat. In the United States the program is administered by the National Audubon Society. Often IBAs form part of a country's existing protected area network, and so are protected under national legislation. Legal recognition and protection of IBAs that are not within existing protected areas varies within different countries. Some countries have a National IBA Conservation Strategy, whereas in others protection is completely lacking. History In 1985, following a specific request from the European Economic Community, Birdlife International dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grassland
A grassland is an area where the vegetation is dominance (ecology), dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes such as clover, and other Herbaceous plant, 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 Assessm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrubland
Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominance (ecology), dominated by shrubs, often also including grasses, herbaceous plant, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It may be the mature vegetation type in a particular region and remain stable over time, or it may be a transitional community that occurs temporarily as the result of a disturbance, such as fire. A stable state may be maintained by regular natural disturbance such as fire or browsing (predation), browsing. Shrubland may be unsuitable for human habitation because of the danger of fire. The term was coined in 1903. Shrubland species generally show a wide range of adaptations to fire, such as heavy seed production, lignotubers, and fire-induced germination. Botanical structural form In botany and ecology a shrub is defined as a much-branched woody plant less than 8 m high, usually with many plant stem, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Forests Of Eastern Africa
The Coastal forests of eastern Africa, also known as the East African Coastal Forests or Zanzibar–Inhambane forests, is a tropical moist forest region along the east coast of Africa. The region was designated a biodiversity hotspot by Conservation International. Geography The forests extend in a narrow band along the coast of the Indian Ocean, from southern Somalia in the north, through coastal Kenya and Tanzania to the mouth of the Limpopo River in southern Mozambique. The forest belt is 50 to 200 km wide, and extends further west along river valleys. They are bounded on the west by drier grasslands and savannas. Pockets of coastal forest grow on the windward eastern slopes of mountains further inland, including the Eastern Arc Mountains of Tanzania and Kenya and some inselbergs in northern Mozambique, where rainfall and dry-season humidity are higher than the adjacent lowlands. The World Wildlife Fund divides the coastal forests into two ecoregions: the Northern Zanzibar-I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangrove Swamp
Mangrove forests, also called mangrove swamps, mangrove thickets or mangals, are productive wetlands that occur in coastal intertidal zones. Mangrove forests grow mainly at tropical and subtropical latitudes because mangrove trees cannot withstand freezing temperatures. There are about 80 different species of mangroves, all of which grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.What is a mangrove forest? National Ocean Service, NOAA. Updated: 25 March 2021. Retrieved: 4 October 2021. Many mangrove forests can be recognised by their dense tangle of prop roots that make the trees appear to be standing on stilts above the water. This tangle of roots allows the trees to handle the daily rise and fall of tides, as most mangroves get flooded at least twice per day. The r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orogeny
Orogeny () is a mountain-mountain formation, building process that takes place at a convergent boundary, convergent plate margin when plate motion compresses the margin. An or develops as the compressed plate crumples and is tectonic uplift, uplifted to form one or more mountain ranges. This involves a series of geological processes collectively called orogenesis. These include both structural deformation (physics), deformation of existing continental crust and the creation of new continental crust through volcanism. Magma rising in the orogen carries less dense material upwards while leaving more dense material behind, resulting in compositional differentiation of Earth's lithosphere (crust (geology), crust and uppermost mantle (geology), mantle). A synorogenic (or synkinematic) process or event is one that occurs during an orogeny. The word ''orogeny'' comes . Although it was used before him, the American geologist Grove Karl Gilbert, G. K. Gilbert used the term in 1890 to me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
