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Ecoregions Of Sudan
The following is a list of ecoregions in Sudan, as identified by the Worldwide Fund for Nature (WWF). Terrestrial ecoregions ''by major habitat type'' Tropical and subtropical moist broadleaf forests * Ethiopian montane forests Tropical and subtropical grasslands, savannas, and shrublands * East Sudanian savanna * Sahelian Acacia savanna Montane grasslands and shrublands * Ethiopian montane grasslands and woodlands Deserts and xeric shrublands * East Saharan montane xeric woodlands * Ethiopian xeric grasslands and shrublands * Red Sea coastal desert * Sahara Desert * South Saharan steppe and woodlands * Tibesti-Jebel Uweinat montane xeric woodlands References * Burgess, Neil, Jennifer D’Amico Hales, Emma Underwood (2004). ''Terrestrial Ecoregions of Africa and Madagascar: A Conservation Assessment''. Island Press, Washington DC. * Thieme, Michelle L. (2005). ''Freshwater Ecoregions of Africa and Madagascar: A Conservation Assessment''. Island Press, Washington DC. {{Sud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregion
An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural communities and species. The biodiversity of flora, fauna and ecosystems that characterise an ecoregion tends to be distinct from that of other ecoregions. In theory, biodiversity or conservation ecoregions are relatively large areas of land or water where the probability of encountering different species and communities at any given point remains relatively constant, within an acceptable range of variation (largely undefined at this point). Three caveats are appropriate for all bio-geographic mapping approaches. Firstly, no single bio-geographic framework is optimal for all taxa. Ecoregions reflect the best compromise for as many taxa as possible. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deserts And Xeric Shrublands
Deserts and xeric shrublands are a biome defined by the World Wide Fund for Nature. Deserts and xeric (ancient Greek xērós, “dry") shrublands form the largest terrestrial biome, covering 19% of Earth's land surface area. Ecoregions in this habitat type vary greatly in the amount of annual rainfall they receive, usually less than annually except in the margins. Generally evaporation exceeds rainfall in these ecoregions. Temperature variability is also diverse in these lands. Many deserts, such as the Sahara, are hot year-round, but others, such as East Asia's Gobi, become quite cold in winter. Temperature extremes are a characteristic of most deserts. High daytime temperatures give way to cold nights because there is no insulation provided by humidity and cloud cover. The diversity of climatic conditions, though quite harsh, supports a rich array of habitats. Many of these habitats are ephemeral in nature, reflecting the paucity and seasonality of available water. Woody-ste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregions Of Sudan
The following is a list of ecoregions in Sudan, as identified by the Worldwide Fund for Nature (WWF). Terrestrial ecoregions ''by major habitat type'' Tropical and subtropical moist broadleaf forests * Ethiopian montane forests Tropical and subtropical grasslands, savannas, and shrublands * East Sudanian savanna * Sahelian Acacia savanna Montane grasslands and shrublands * Ethiopian montane grasslands and woodlands Deserts and xeric shrublands * East Saharan montane xeric woodlands * Ethiopian xeric grasslands and shrublands * Red Sea coastal desert * Sahara Desert * South Saharan steppe and woodlands * Tibesti-Jebel Uweinat montane xeric woodlands References * Burgess, Neil, Jennifer D’Amico Hales, Emma Underwood (2004). ''Terrestrial Ecoregions of Africa and Madagascar: A Conservation Assessment''. Island Press, Washington DC. * Thieme, Michelle L. (2005). ''Freshwater Ecoregions of Africa and Madagascar: A Conservation Assessment''. Island Press, Washington DC. {{Sud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Saharan Steppe And Woodlands
The South Saharan steppe and woodlands, also known as the South Sahara desert, is a deserts and xeric shrublands ecoregion of northern Africa. This band is a transitional region between the Sahara's very arid center (the Sahara desert ecoregion) to the north, and the wetter Sahelian Acacia savanna ecoregion to the south. In pre-modern times, the grasslands were grazed by migratory gazelles and other ungulates after the rainfalls. More recently, over-grazing by domestic livestock have degraded the territory. Despite the name of the ecoregion, there are few 'woodlands' in the area; those that exist are generally acacia and shrubs along rivers and in wadis. Location and description The ecoregion covers in Algeria, Chad, Mali, Mauritania, Niger, and Sudan. It extends east and west across the continent in a band, forming a transition between the hyper-arid Sahara Desert to the north and the Sahel grasslands and savannas to the south. Climate The climate of the ecoregion is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Sea Coastal Desert
The Red Sea coastal desert is deserts and xeric shrublands ecoregion of Egypt and Sudan. Geography The Red Sea coastal desert extends north and south along the Red Sea and Gulf of Suez, which bound it on the east. It includes both a narrow coastal strip and the Red Sea Hills, a range of coastal mountains that runs parallel to the coast. The Egyptian portion is bounded on the west by the Eastern Desert, part of the hyper-arid Sahara Desert ecoregion. The Sudanese portion is bounded by the South Saharan steppe on the west, and by the Sahelian Acacia savanna to the south. Climate Most precipitation comes in the winter months. Rainfall is as little as 3 mm along the coast. Rainfall is higher on the eastern slopes of the mountains, which intercept periodic moisture-bearing winds which create fog precipitation and occasional heavy rainstorms. Flora Vegetation includes mangrove swamps and salt marshes along the shore, sparse shrublands along the coast, and dry woodlands in strea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethiopian Xeric Grasslands And Shrublands
The Ethiopian xeric grasslands and shrublands ecoregion is a semi-desert strip on or near the Red Sea and the Gulf of Aden coasts in Eritrea, Ethiopia, Djibouti and Somaliland. This ecoregion lies mainly between sea level and 800 meters (m) elevation. There are, however, many hills and massifs, which range up to 1300 m as well as outstanding fault-induced depressions, such as the Danakil, lying as low as 155 m below sea level. This region is extremely active tectonically, experiencing many earthquakes and intermittently active volcanoes. Rainfall is very low and yearly averages range from 100 to 200 millimeters (mm), with less rain falling closer to the coast. There are many species of interest, including the endemic Archer's lark (''Heteromirafra archeri''), a species of dragon tree ('' Dracaena ombet''), and a large suite of desert ungulates, including the last viable population of African wild ass (''Equus africanus somalicus''). Location and description This ecoregion extends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Saharan Montane Xeric Woodlands
The East Saharan montane xeric woodlands is an ecoregion of central Africa, a number of high mountains in the middle of the huge area of savanna on the edge of the Sahara Desert. Location and description The ecoregion covers the higher elevations of the Ennedi Plateau and the Ouaddaï Highlands of eastern Chad and the extinct volcano system Jebel Marra in Darfur, western Sudan. These mountain ranges rise above the semi-desert sahelian Acacia savanna at the southern edge of the Sahara Desert. The ecoregion covers an area of . The summer rains are irregular, even more so in Chad than on Jebel Marra, which has two crater lakes. Flora Plant life includes many species typical of the sahel belt including ''Ammania gracilis'', the grass ''Panicum laetum'', the forb '' Chrozophora brocchiana'' and the herbs '' Farsetia stenoptera'', ''Indigofera senegalensis'' and ''Tephrosia gracilipes''. One classic element of the natural flora was Laperrine's Olive ''(Olea europaea laperrinei)' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethiopian Montane Grasslands And Woodlands
The Ethiopian montane grasslands and woodlands is a montane grasslands and shrublands ecoregion in Ethiopia. It occupies the middle elevations of the Ethiopian Highlands, between the high-altitude Ethiopian montane moorlands and the lower-elevation Ethiopian montane forests. The ecoregion includes montane grasslands, open woodlands, shrublands, and forest. Geography The ecoregion includes the middle elevations of the Ethiopian Highlands, between 1,800 to 3,000 meters elevation. The northern and southern portions of the highlands are separated by the African Rift Valley. Flora The natural vegetation includes grassland, open woodlands, shrubland including thorn scrub, and areas of forest, particularly in the more humid southern highlands. Dominant woodland trees include the conifers African juniper (''Juniperus procera'') and ''Afrocarpus falcatus'', and the broadleaved ''Hagenia abyssinica''. Parts of the highlands have been densely populated for centuries, and the vegetation has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sudan
Sudan ( or ; ar, السودان, as-Sūdān, officially the Republic of the Sudan ( ar, جمهورية السودان, link=no, Jumhūriyyat as-Sūdān), is a country in Northeast Africa. It shares borders with the Central African Republic to the southwest, Chad to the west, Egypt to the north, Eritrea to the northeast, Ethiopia to the southeast, Libya to the northwest, South Sudan to the south and the Red Sea. It has a population of 45.70 million people as of 2022 and occupies 1,886,068 square kilometres (728,215 square miles), making it Africa's List of African countries by area, third-largest country by area, and the third-largest by area in the Arab League. It was the largest country by area in Africa and the Arab League until the 2011 South Sudanese independence referendum, secession of South Sudan in 2011, since which both titles have been held by Algeria. Its Capital city, capital is Khartoum and its most populated city is Omdurman (part of the metropolitan area of Khar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montane Grasslands And Shrublands
Montane grasslands and shrublands is a biome defined by the World Wildlife Fund. The biome includes high elevation grasslands and shrublands around the world. The term "montane" in the name of the biome refers to "high elevation", rather than the ecological term which denotes the region below treeline. This biome includes high elevation (montane and alpine) grasslands and shrublands, including the puna and páramo in South America, subalpine heath in New Guinea and East Africa, steppes of the Tibetan plateaus, as well as other similar subalpine habitats around the world. The plants and animals of tropical montane páramos display striking adaptations to cool, wet conditions and intense sunlight. Around the world, characteristic plants of these habitats display features such as rosette structures, waxy surfaces, and abundant pilosity. The páramos of the northern Andes are the most extensive examples of this habitat type. Although ecoregion biotas are most diverse in the And ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
