Ethiopian Montane Forests
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Ethiopian Montane Forests
The Ethiopian montane forests is a tropical moist broadleaf forest ecoregion in eastern Africa. It covers the middle elevations of the Ethiopian Highlands in Ethiopia and extends into neighboring Eritrea, Sudan, Djibouti, and Somaliland. The ecoregion includes distinctive Afromontane forests, woodlands, grasslands, and shrublands. The ecoregion's biodiversity is threatened by deforestation, conversion to agriculture, and overgrazing. Geography The Ethiopian montane forests lie between 1,100 and 1,800 meters elevation. They extend throughout the middle elevations of the Ethiopian Highlands, which are mostly in Ethiopia and reach into neighboring Eritrea and Somaliland. The ecoregion also includes several outlying mountains, including Jebel Elba, Jebel Hadai Aweb, and Jebel Ower in eastern Sudan, and the Goda and Mabla mountains in Djibouti. The montane forests are bounded at lower elevations by tropical grasslands and savannas on the west and southwest, and deserts and dry shrubl ...
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Afrotropical Realm
The Afrotropical realm is one of Earth's eight biogeographic realms. It includes Africa south of the Sahara Desert, the majority of the Arabian Peninsula, the island of Madagascar, southern Iran and extreme southwestern Pakistan, and the islands of the western Indian Ocean. It was formerly known as the Ethiopian Zone or Ethiopian Region. Major ecological regions Most of the Afrotropic, with the exception of Africa's southern tip, has a tropical climate. A broad belt of deserts, including the Atlantic and Sahara deserts of northern Africa and the Arabian Desert of the Arabian Peninsula, separate the Afrotropic from the Palearctic realm, which includes northern Africa and temperate Eurasia. Sahel and Sudan South of the Sahara, two belts of tropical grassland and savanna run east and west across the continent, from the Atlantic Ocean to the Ethiopian Highlands. Immediately south of the Sahara lies the Sahel belt, a transitional zone of semi-arid short grassland and vachellia sa ...
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Jebel Hadai Aweb
Jabal, Jabel, Jebel or Jibal may refer to: People * Jabal (name), a male Arabic given name * Jabal (Bible), mentioned in the Hebrew Bible Places In Arabic, ''jabal'' or ''jebel'' (spelling variants of the same word) means 'mountain'. * Dzhebel, a town in Bulgaria * Jabal Amman, part of Amman, Jordan * Jabel, a German municipality * Jabal, Amreli, a village in Gujarat, India * Jabal Rural District, in Iran * Jebel, Timiș, a commune in Timiș County, Romania * Jebel, Turkmenistan, a town * Jibal Jibāl ( ar, جبال), also al-Jabal ( ar, الجبل), was the name given by the Arabs to a region and province located in western Iran, under the Umayyad and Abbasid Caliphates. Its name means "the Mountains", being the plural of ''jabal'' (" ... or al-Jabal, a late 1st-millennium-CE West-Asian realm Other uses * Djebel (1937–1958), a racehorse See also * * * * * * Jubal (other) {{disambiguation ...
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Olea Capensis
''Olea capensis'', the black ironwood, is an African tree species in the olive family Oleaceae. It is widespread in sub-Saharan Africa: from the east in Somalia, Ethiopia and Sudan, south to the tip of South Africa, and west to Cameroon, Sierra Leone and the islands of the Gulf of Guinea, as well as Madagascar and the Comoros. It occurs in bush, littoral scrub and evergreen forest. Other common names in English include ironwood, ironwood olive, East African olive and Elgon olive. Description The black ironwood is a bushy shrub, or a small to medium-sized tree, up to in height, occasionally reaching . *Bark: light grey, becoming dark grey and vertically fissured with age; a characteristic blackish gum is exuded from bark wounds. *Leaves: light to dark green and glossy above and paler green below; petiole often purplish, 0.3–1.7 cm long; lanceolate-oblong to almost circular, 3–10 x 1.5–5 cm. *Flowers: white or cream and sweetly scented, small and in many flowe ...
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Ochna Holstii
''Ochna''Linnaeus C (1753) ''Sp. Pl.'' 1: 513. is a genus comprising 86 species of evergreen trees, shrubs and shrublets belonging to the flowering plant family ''Ochnaceae''. These species are native to tropical woodlands of Africa, the Mascarenes and Asia. Species of this genus are usually called ochnas, bird's-eye bushes or Mickey-mouse plants, a name derived from the shape of the drupelet fruit. The name of this genus comes from the Greek word ''Ochne'', used by Homer and meaning ''wild pear'', as the leaves are similar in appearance. Some species, including ''Ochna integerrima'' (yellow ''Mai'' flower) and '' O. serrulata'' (bird's eye plant), are cultivated as decorative plants. Distribution Species of this genus are found in the Old World Tropics, especially in Africa, Madagascar, the Mascarene Islands and Asia. Selected species *''Ochna afzelii'' *''Ochna andamanica'' *''Ochna angustata'' *''Ochna arborea'' *''Ochna awrrulata'' *''Ochna barbosae'' – sand plane, ...
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Macaranga Capensis
''Macaranga'' is a large genus of Old World tropical trees of the family Euphorbiaceae and the only genus in the subtribe Macaranginae (tribe Acalypheae). Native to Africa, Australasia, Asia and various islands of the Indian and Pacific Oceans, the genus comprises over 300 different species. It was first described as a genus in 1806, based on specimens collected on the Island of Mauritius. ''Macaranga'' is noted for being recolonizers. ''Macaranga'' species are used as food plants by the larvae of some Lepidoptera species including ''Endoclita malabaricus''. ''Macaranga'' species often form symbioses with ant ( Formicidae) species (particularly ''Crematogaster'' ants of the subgenus '' Decacrema'') because they have hollow stems that can serve as nesting space and occasionally provide nectar. The trees benefit because the ants attack herbivorous insects and either drive them away or feed on them. Use * Macaranga gum, a crimson resin, is obtained from '' Macaranga indica''. * ' ...
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Fleroya Rubrostipulata
''Mitragyna rubrostipulata'' is a tree indigenous to East Africa. It is native from Ethiopia through east-central tropical Africa ( Burundi, Kenya, Malawi, Rwanda, Tanzania, Uganda and Zaire) to Mozambique. It grows in wet forests up to 2,000 m above sea level and is abundant in swamp forests along Lake Victoria. Description The tree is up to 20 m high, has a few large branches that forms a rounded crown. The bark is light grey brown, fairly rough and thick. The leaves are large, in opposite pairs, shiny above and widely oval. Flowers occur in round heads, 2.5 cm across, green-yellow-white with a sweet scent on 3–7 cm long stalks. The fruits in the head are capsules around 1 cm long, and contain a few tiny winged seeds. Uses The timber is fairly good and it is used for firewood, charcoal, timber, to make dug out canoes and for soil improvement. Medicinal use The bark and roots are widely used in the areas where it grows. In the Sango Bay area in Uga ...
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Diospyros Abyssinica
''Diospyros abyssinica'' (also known as ''giant diospyros'', or ''Kôforonto'' and ''Baforonto'' in local languages spoken in parts of Mali, ''blidzo'', ''blitcho'', ''gblit∫o'', ''blonyat∫o'' or ''gblεt∫o'' in some Ghanaian languages) is a tree species in the family Ebenaceae which is native to Sub-Saharan Africa. Distribution and description While usually not a common species, ''Diospyros abyssinica'' is widespread in Africa, ranging from Guinea to Eritrea, southwards to the area covered by the Flora Zambesiaca, and Angola. The species is a large tree with a relatively sparse and shortly branched crown. Like other Diospyros, it is an evergreen species. The leaves are alternating, oblong-elliptic, and glossy dark green. Their margin is entire and often wavy. The young leaves are distinctly red. Flowers are small, growing axillary, and are found to be solitary or in few-flowered clusters. They have a creamy-white to yellow colour. The fruit is fleshy, spherical, and h ...
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Acacia
''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus name is New Latin, borrowed from the Greek (), a term used by Dioscorides for a preparation extracted from the leaves and fruit pods of ''Vachellia nilotica'', the original type of the genus. In his ''Pinax'' (1623), Gaspard Bauhin mentioned the Greek from Dioscorides as the origin of the Latin name. In the early 2000s it had become evident that the genus as it stood was not monophyletic and that several divergent lineages needed to be placed in separate genera. It turned out that one lineage comprising over 900 species mainly native to Australia, New Guinea, and Indonesia was not closely related to the much smaller group of African lineage that contained ''A. nilotica''—the type species. This meant that the Australasian lineage (by ...
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Boswellia
''Boswellia'' is a genus of trees in the order Sapindales, known for its fragrant resin. The biblical incense frankincense is an extract from the resin of the tree ''Boswellia sacra'', and is now produced also from '' B. frereana''. Frankincense The four main species of ''Boswellia'', ''B. sacra'' (synonyms ''B. carteri'' and ''B. bhaw-dajiana''), ''B. frereana'', ''B. papyrifera'', and ''B. serrata'', produce true frankincense, and each type of resin is available in various grades. The grades depend on the time of harvesting, and the resin is hand sorted for quality. Description ''Boswellia'' species are moderate-sized flowering plants, including both trees and shrubs, and are native to tropical regions of Africa and Asia. The distributions of the species are primarily associated with the tropics.Weeks, A., Daly, D.C. and B.B. Simpson. 2005. "The phylogenetic history and biogeography of the frankincense and myrrh family (Burseraceae) based on nuclear and chloroplast sequence ...
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Commiphora
The genus of the myrrhs, ''Commiphora'', is the most species-rich genus of flowering plants in the frankincense and myrrh family, Burseraceae. The genus contains approximately 190 species of shrubs and trees, which are distributed throughout the (sub-) tropical regions of Africa, the western Indian Ocean islands, the Arabian Peninsula, India, and South America.Weeks, A. and Simpson, B.B. 2007. Molecular phylogenetic analysis of Commiphora (Burseraceae) yields insight on the evolution and historical biogeography of an “impossible” genus. Molecular Phylogenetics and Evolution. 42:62–79. The genus is drought-tolerant and common throughout the xerophytic scrub, seasonally dry tropical forests, and woodlands of these regions. The common name myrrh refers to several species of the genus, from which aromatic resins are derived for various fragrance and medicinal uses by humans. Description Leaves in ''Commiphora'' are pinnately compound (or very rarely unifoliolate). Many spe ...
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Terminalia (plant)
''Terminalia'' is a genus of large trees of the flowering plant family Combretaceae, comprising nearly 300 species distributed in tropical regions of the world. The genus name derives from the Latin word ''terminus'', referring to the fact that the leaves appear at the very tips of the shoots. Selected species There are 282 accepted ''Terminalia'' species as of April 2021 according to Plants of the World Online. Selected species include: *'' Terminalia acuminata'' (Fr. Allem.) Eichl. *'' Terminalia albida'' Scott-Elliot *''Terminalia amazonia'' (J.F.Gmel.) Exell – white olive *''Terminalia arbuscula'' Sw. *''Terminalia archipelagi'' Coode *''Terminalia arjuna'' (Roxb. ex DC.) Wight & Arn. – arjuna, koha, white marudah *''Terminalia arostrata'' Ewart & O.B.Davies – crocodile tree *'' Terminalia australis'' Cambess – palo amarillo, tanimbú *''Terminalia avicennioides'' *''Terminalia bellirica'' (Gaertn.) Roxb. – beleric *''Terminalia bialata ...
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Orographic Precipitation
Orography is the study of the topographic relief of mountains, and can more broadly include hills, and any part of a region's elevated terrain. Orography (also known as ''oreography'', ''orology'' or ''oreology'') falls within the broader discipline of geomorphology. The term orography comes from the Greek: , hill, , to write. Uses Mountain ranges and elevated land masses have a major impact on global climate. For instance, the elevated areas of East Africa substantially determine the strength of the Indian monsoon.Srinivasan, J., Nanjundiah, Ravi S. and Chakraborty, Arindam (2005Impact of Orography on the Simulation of Monsoon Climate in a General Circulation Model''Indian Institute of Science'' In scientific models, such as general circulation models, orography defines the lower boundary of the model over land. When a river's tributaries or settlements by the river are listed in 'orographic sequence', they are in order from the highest (nearest the source of the river) to the l ...
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