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Ecoregions Of Algeria
The following is a list of ecoregions in Algeria, according to the Worldwide Fund for Nature (WWF). Terrestrial ecoregions Palearctic Temperate coniferous forests * Mediterranean conifer and mixed forests Mediterranean forests, woodlands, and scrub * Mediterranean dry woodlands and steppe * Mediterranean woodlands and forests Deserts and xeric shrublands * North Saharan steppe and woodlands * Sahara desert (ecoregion), Sahara Desert * South Saharan steppe and woodlands * West Saharan montane xeric woodlands Flooded grasslands and savannas * Saharan halophytics Freshwater ecoregions * Permanent Maghreb * Temporary Maghreb * Dry Sahel Marine ecoregions * Alboran Sea * Western Mediterranean References * Burgess, Neil, Jennifer D’Amico Hales, Emma Underwood (2004). ''Terrestrial Ecoregions of Africa and Madagascar: A Conservation Assessment''. Island Press, Washington DC. * Spalding, Mark D., Helen E. Fox, Gerald R. Allen, Nick Davidson ''et al.'' "Marine Ecoregions of the W ... [...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. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Saharan Montane Xeric Woodlands
The West Saharan montane xeric woodlands is an ecoregion that extends across several highland regions in the Sahara. Surrounded at lower elevations by the largely barren Sahara, the West Saharan montane xeric woodlands are isolated refuges of plants and animals that can survive in the higher humidity and lower temperatures of the highlands. Setting The Sahara is a vast desert, stretching across northern Africa from the Atlantic Ocean to the Red Sea. Some mountains ranges (such as the Ahaggar, Tassili n'Ajjer, Tibesti and Aïr) rise up from the desert and receive more rainfall and mostly present slightly cooler summer temperatures. These highlands support dry woodlands and shrublands distinct from the hot dry desert lowlands. This ecoregion has an area of . The boundaries for the largest part of this ecoregion, which includes the Tassili n'Ajjer Ahaggar and Aïr (or Azbine) massifs, follow the ' regs,' ' hamadas' and 'wadis' above the 1,000 m contour. This covers a good part of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregions Of Algeria
The following is a list of ecoregions in Algeria, according to the Worldwide Fund for Nature (WWF). Terrestrial ecoregions Palearctic Temperate coniferous forests * Mediterranean conifer and mixed forests Mediterranean forests, woodlands, and scrub * Mediterranean dry woodlands and steppe * Mediterranean woodlands and forests Deserts and xeric shrublands * North Saharan steppe and woodlands * Sahara desert (ecoregion), Sahara Desert * South Saharan steppe and woodlands * West Saharan montane xeric woodlands Flooded grasslands and savannas * Saharan halophytics Freshwater ecoregions * Permanent Maghreb * Temporary Maghreb * Dry Sahel Marine ecoregions * Alboran Sea * Western Mediterranean References * Burgess, Neil, Jennifer D’Amico Hales, Emma Underwood (2004). ''Terrestrial Ecoregions of Africa and Madagascar: A Conservation Assessment''. Island Press, Washington DC. * Spalding, Mark D., Helen E. Fox, Gerald R. Allen, Nick Davidson ''et al.'' "Marine Ecoregions of the W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregions Of Africa
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. Sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Mediterranean
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The Sea has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. The Mediterranean Sea en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alboran Sea
The Alboran Sea (from Arabic , ''al-Baḥrān'') is the westernmost portion of the Mediterranean Sea, lying between the Iberian Peninsula and the north of Africa (Spain on the north and Morocco and Algeria on the south). The Strait of Gibraltar, which lies at the west end of the Alboran Sea, connects the Mediterranean with the Atlantic Ocean. Geography Its average depth is and maximum depth is . The International Hydrographic Organization defines the limits of the Alboran Sea as follows: ''On the West.'' The Eastern limit of the Strait of Gibraltar: A line joining from tip ( Europa Point) of '' Cap Gibraltar'' in Europe to the tip of the '' Península de Almina'' of Ceuta in Africa (). ''On the East.'' A line joining from ''Cabo de Gata'' in Andalusia in Europe to ''Cap Fegalo'', near Oran, Algeria in Africa (). Several small islands dot the sea, including the eponymous Isla de Alborán. Most, even those close to the African shore, belong to Spain. Geology The Alboran doma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dry Sahel
The Sahel (; ar, ساحل ' , "coast, shore") is a region in North Africa. It is defined as the ecoclimatic and biogeographic realm of transition between the Sahara to the north and the Sudanian savanna to the south. Having a hot semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea. The Sahel part of Africa includes – from west to east – parts of northern Senegal, southern Mauritania, central Mali, northern Burkina Faso, the extreme south of Algeria, Niger, the extreme north of Nigeria, Cameroon and Central African Republic, central Chad, central and southern Sudan, the extreme north of South Sudan, Eritrea and Ethiopia. Historically, the western part of the Sahel was sometimes known as the Sudan region (''bilād as-sūdān'' "lands of the Sudan"). This belt was located between the Sahara and the coastal areas of West Africa. There are frequent shortages of food and water due to the dry h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permanent Maghreb
The Permanent Maghreb of World Wide Fund for Nature is a freshwater ecoregion of North Africa. Geography The Permanent Maghreb ecoregion covers an area of 950,180 square kilometers, and extends across the portions of Algeria, Mauritania, Morocco, Tunisia, and Western Sahara. It occupies the Mediterranean climate region of northern Africa, and is characterized by rivers and streams which flow on the surface year-round. The ecoregion is bounded on the north by the Atlantic Ocean and Mediterranean Sea, and to the south by the Temporary Maghreb freshwater ecoregion, which covers the northern portion of the Sahara and is characterized by temporary or seasonally-flowing rivers and streams. The WWF divides the ecoregion into two. Atlantic Northwest Africa lies in northwestern Africa, covering most of Morocco and Western Sahara and portions of Mauritania and Algeria. The ecoregion covers the western Atlas Mountains complex, including the Anti-Atlas to the west, the High Atlas, the Mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saharan Halophytics
The Saharan halophytics ecoregion (WWF ID: PA0905) covers a series of low-lying evaporite depressions and wetlands spread across North Africa. The depressions are characteristically saline, variously chotts (saline lakes fed by groundwater and some winter rains) or sabkhas (coastal, supratidal mudflats of evaporites). The plants of the areas are highly specialized to survive in the harsh environment, with many being xerophytes (drought-tolerant) and halophytes (salt-tolerant). The biodiversity of the areas has been relatively protected by their isolation, and unsuitability of alkaline soil for farming. Location and description The sites making up this ecoregion contain a wide variety of habitat types: salt pans, seasonal salt lakes, salt marshes, reed beds, and spring-fed oases. Chott and sebkha areas exist in arid regions with clay soils heavy with evaporites. Specific locations assigned to this ecoregion include: * Chott Melrhir (Northeast Algeria). An extension of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flooded Grasslands And Savannas
Flooded grasslands and savannas is a terrestrial biome of the WWF biogeographical system, consisting of large expanses or complexes of flooded grasslands. These areas support numerous plants and animals adapted to the unique hydrologic regimes and soil conditions. Large congregations of migratory and resident waterbirds may be found in these regions. However, the relative importance of these habitat types for these birds as well as more vagile taxa typically varies as the availability of water and productivity annually and seasonally shifts among complexes of smaller and larger wetlands throughout a region. This habitat type is found on four of the continents on Earth. Some globally outstanding flooded savannas and grasslands occur in the Everglades, Pantanal, Lake Chad flooded savanna, Zambezian flooded grasslands, and the Sudd. The Everglades, with an area of , are the world's largest rain-fed flooded grassland on a limestone substrate, and feature some 11,000 species of ... [...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] |
