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Topic: Sahara Desert (ecoregion)

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	Terrestrial Ecoregions -- Sahara desert (PA1327)
		The Sahara is the largest desert in the world and occupies approximately 10 percent of the African Continent.
		The surface of the desert ranges from large areas of sand dunes (erg Chech, Raoui), to stone plateaus (hamadas), gravel plains (reg), dry valleys (wadis), and salt flats (Cloudsey-Thompson 1984, Williams and Faure 1980).
		Mammals in the Palaearctic Desert: status and trends in the Sahara-Gobian region.
	www.worldwildlife.org /wildworld/profiles/terrestrial/pa/pa1327_full.html (1623 words)

	Sahara (Site not responding. Last check: )
		The boundaries of the Sahara are the Atlantic Ocean on the west, the Atlas Mountains and the Mediterranean Sea on the north, the Red Sea and Egypt on the east, and the Sudan and the valley of the River Niger on the south.
		Sahara is divided into western Sahara, the central Ahaggar Mountains, the Tibesti massif the Aïr Mountains (a region of desert mountains and high plateaus), Tenere desert and the Libyan desert (the most arid region).
		The southern border of the Sahara is marked by a band of semiarid savanna called the Sahel; south of the Sahel lies the lusher Sudan.
	sahara.iqnaut.net (1226 words)

	Wikipedia: Sahara
		The boundaries of the Sahara are the Atlantic Ocean on the west, the Atlas Mountains and the Mediterranean Sea on the north, the Red Sea and Egypt on the east, and the Sudan and the valley of the Niger River on the south.
		Sahara is divided into western Sahara, the central Ahaggar Mountains, the Tibesti massif (a region of desert mountains and high plateaus), and the Libyan desert (the most arid region).
		The southern border of the Sahara is marked by a band of semiarid savanna called the Sahel; south of the Sahel lies the lusher Sudan.
	www.factbook.org /wikipedia/en/s/sa/sahara.html (572 words)

	Sahara - Encyclopedia, History, Geography and Biography (Site not responding. Last check: )
		The Sahara is divided into western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Aïr Mountains (a region of desert mountains and high plateaus), Tenere desert and the Libyan desert (the most arid region).
		The southern border of the Sahara is marked by a band of semiarid savanna called the Sahel; south of the Sahel lies the lusher Sudan and the Congo River Basin.
		The modern Sahara, though, is not as lush in vegetation, except in the Nile Valley, at a few oases, and in the northern highlands, where Mediterranean plants such as the olive tree grow.
	arikah.com /encyclopedia/Sahara_desert (1514 words)

	Sahara desert : Sahara (Site not responding. Last check: )
		The Sahara divides the continent into the Arab parts north of it and the sub-Saharan Africa south of it.
		The southern border of the Sahara is marked by the Sahel.
		Chapter XIV That early spring of 1915 the two boys and their friends and Brethren subject was not an all at absorbing one; for the trenches in Flanders of imagination could these wet trenches be thought greatly to concern.
	www.termsdefined.net /sa/sahara.html (348 words)

	Sahara Desert (ecoregion) - Wikipedia, the free encyclopedia
		For such reasons, the great Sahara may be divided in several ecoregions and each of them be separately described.
		Another pecularity of the desert is the presence of wind.
		Heading into the desert one notices the size of the boulders becomes progressively smaller; to begin with they are huge.
	en.wikipedia.org /wiki/Sahara_Desert_(ecoregion) (780 words)

	Global Deserts Outlook
		The deserts of West Asia and Central Asia (Figure 4.7) are all rain-shadow deserts, mostly encircled by young fold mountains.
		The Mesopotamian shrub desert is transitional between the deserts to the south and the steppes to the north.
		Significant portions of the Azerbaijan shrub desert and the Central Asian northern desert are farmed under irrigation, causing water and soil pollution by the use of fertilizers and pesticides.
	www.unep.org /geo/gdoutlook/066.asp (720 words)

	Sahara
		The southern border of the Sahara is marked by a band of semiarid savanna called the Sahel; south of the Sahel lies the lusher Sudan.
		During the last Ice Age, the Sahara was a much wetter place than it is today.
		The modern Sahara, though, is generally devoid of vegetation, except at a few oases and in some scattered mountain ranges.
	www.teachersparadise.com /ency/en/wikipedia/s/sa/sahara.html (156 words)

	Sahara Desert
		Western Sahara in English ARSO - Association de soutien à un référendum libre et régulier au Sahara Occidental
		Sahara desert frontiers turn green 18 September, 2002 BBC News
		Threats to the survival of plants native to the Sahara Desert Eden Project
	www.trinity.wa.edu.au /plduffyrc/Subjects/pe/oe/sahara.htm (145 words)

	Sahara - encyclopedia article about Sahara (Site not responding. Last check: )
		During the last ice age, the Sahara was bigger than it is today, extending south beyond its current boundariesChristopher Ehret.
		The Sahara is currently as dry as it was about 13,000 years ago.White, Kevin and Mattingly, David J. Ancient Lakes of the Sahara.
		Brakez et al., "Human mitochondrial DNA sequence variation in the Moroccan population of the Souss area" extract www.ncbi.nlm.nih.gov found that various populations have contributed to the present-day gene pool of the Souss region of southern Morocco, including Berbers, Arabs, Phoenicians, Sephardic Jews, and sub-Saharan Africans.
	www.dr-science.org /wiki/Sahara_desert (1411 words)

	Wikipedia:WikiProject Ecoregions
		We believe thinking ecoregion instead of political geography (ie, borders between "regions" being defined by the political borders of nations) is a better way to solve some global issues.
		Superimposing the ecozones on that, and the subordinate rivers flowing to each ocean through them, and then the ecoregions on the surface, is the only objective way to break down the Earth's biosphere without cognizance of political boundaries or languages.
		Translating the ecoregions and rivers into Latin isn't hard for those that have multiple names and were colonized by Europeans.
	ebroadcast.com.au /lookup/encyclopedia/wi/WikiProject_Ecoregions.html (1069 words)

	Lullaby Playard Sahara
		Sahara Desert (ecoregion) - The Sahara Desert is an ecoregion covering part of the Sahara.
		International Court of Justice Advisory Opinion on Western Sahara - One of the main functions of the International Court of Justice is to provide Advisory Opinions - non-binding legal interpretations admitted by United Nations organs.
		Coat of Arms of Western Sahara - The coat of arms of Western Sahara is a symbol created by the Polisario Front, the resistance group/political party in the territory.
	pl66.twentytank.com /lullabyplayardsahara.html (507 words)

	Ecoregion - Encyclopedia of Earth
		The motivation for the ecoregion classification system is that scarce resources and dwindling time force conservationists to target their actions to stem the loss of biodiversity — a pragmatic approach, given the highly uneven distribution of species and threats.
		Ecoregions reflect the distribution of a broad range of fauna and flora across the entire planet, from the vast Sahara Desert to the diminutive Clipperton Island (eastern Pacific Ocean).
		Ecoregions, representing distinct biotas, are nested within the biomes and realms and, together, these provide a framework for comparisons among units and the identification of representative habitats and species assemblages.
	www.eoearth.org /article/Ecoregion (459 words)

	Wikipedia:WikiProject Ecoregions/ecoregionDTD
		An ecoregion DTD is the ideal starting point, as unlike national borders, ecoregions don't change much through human history, and when they do, the important characteristics move with them, e.g.
		Both rely on the m:spacetime DTD, but beyond that, they fork, the ecoregion is ecology and geography, while a human place name refers to a polity (state) in a language of its inhabitants.
		Despite changes, the fact that there is an ecoregion there has been relatively stable.
	www.ebroadcast.com.au /lookup/encyclopedia/wi/WikiProject_Ecoregions___ecoregionDTD.html (173 words)

	WWF - Deserts and Xeric Shrubland Ecoregions
		The Atacama Desert ecoregion of western South America (as well as the adjacent transition area of the Monte / Puna / Yungas) and the Horn of Africa deserts were recognized as some of the more outstanding regional centers of richness and endemism.
		The Central Asian deserts, while not nearly as rich as Afrotropical or Neotropical deserts, are representative of the region’s deserts.
		Deserts and xeric shrublands may have extraordinarily rich floras with very high alpha and beta diversity; reptile faunas may also be very diverse; local endemism may be quite pronounced in some regions.
	www.panda.org /about_wwf/where_we_work/ecoregions/about/habitat_types/selecting_terrestrial_ecoregions/habitat13.cfm (439 words)

	Sahara - Wikipedia, the free encyclopedia
		The modern Sahara, though, is not as lush in vegetation, except in the Nile Valley, at a few oases, and in the northern highlands, where Mediterranean plants such as the olive tree are found to grow.
		The largest city in the Sahara is the Egyptian capital Cairo, in the Nile Valley.
		By 2500 BCE the Sahara was as dry as it is today and it became a largely impenetrable barrier to humans, with only scattered settlements around the oases, but little trade or commerce through the desert.
	en.wikipedia.org /wiki/Sahara_desert (1486 words)

	Biome Desert Sahara
		The Sahara Desert is a very fragile environment and we need to take care of it...
		However, a desert is a biome, or type of environment, in which...
		Sahara desert is an ecoregion (PA 1327) The word Sahara itself comes from the Arabic word...
	ask.linestream.org /biome-desert-sahara.html (295 words)

	sahara desert resource page
		Sahara is divided into western Sahara, the central Ahaggar Mountains, the Tibesti massif, the Aïr Mountains (a region of desert mountains and high plateaus), Tenere desert and the Libyan desert (the most arid region).
		The modern Sahara, though, is generally devoid of vegetation, except in the Nile Valley and at a few oases and in some scattered mountains and has been this way since about 3000 BC.
		A love of the Sahara and camels moves John Ure to leave the coast behind and explore the romantic heartland of north Africa.
	www.digitamoney.com /Roten-to-Samue/sahara_desert.php (1871 words)

	Terrestrial Ecoregions -- Sahelian Acacia savanna (AT0713)
		The ecoregion thus lies south of the Southern Saharan Steppe and Woodland Ecoregion and north of the West and East Sudanian Savanna Ecoregions.
		The topography is mainly flat and the majority of the ecoregion lies between 200 m to 400 m in elevation.
		Climatic desiccation is also a long-term threat to the ecoregion, and where combined with inappropriate land use, it can result in the total loss of vegetation cover and the partial, although perhaps temporary, conversion of the affected area to desert or near-desert.
	worldwildlife.org /wildworld/profiles/terrestrial/at/at0713_full.html (1909 words)

	Terrestrial Ecoregions -- Sahara desert (PA1327) (Site not responding. Last check: )
		The Sahara Desert is a vast expanse of searing heat and merciless winds that stretches from the Atlantic Ocean to the Red Sea.
		This ecoregion covers the central part of the desert, where the monotony of vast sand dunes is occasionally broken by areas of stone plateaus, gravel plains, dry valleys, salt flats, and high mountains with snowcapped peaks.
		Because of the harshness of this environment, the Sahara is largely undisturbed.
	www.ngeo.com /wildworld/profiles/terrestrial/pa/pa1327.html (554 words)

	Desert Endangered In Sahara Species (Site not responding. Last check: )
		all occur in desert or semidesert habitat of the Sahara and Sahel regions...
		African continent, from the famous Sahara Desert to the green jungles of Central...
		It occurs in the Western Sahara east to The Sudan and Egypt, Syria, Lebanon,...
	next.megafeed.org /desert-endangered-in-sahara-species.html (437 words)

	Terrestrial Ecoregions -- Sahelian Acacia savanna (AT0713)
		The Sahelian Acacia Savanna ecoregion stretches clear across the widest part of the African continent, from Senegal on the Atlantic Coast to Sudan, Ethiopia, and Eritrea on the Red Sea.
		Although a few isolated mountains rise from this otherwise flat land, they are not part of this ecoregion; the majority of this ecoregion lies between 650 and 1300 feet (200 and 400 m).
		But the Sahelian Acacia Savanna ecoregion is also a transition zone where the savanna meets the Sahara Desert.
	207.24.89.170 /wildworld/profiles/terrestrial/at/at0713.html (402 words)

	Ecoregions of our area
		Main sources: Shreve, Forrest, 1951, Vegetation of the Sonoran Desert, Washington, D.C.: Carnegie Institute of Washington Publication 591; Dimmit, Mark, "Biomes and Communities of the Sonoran Desert Region", in Phillips, Steven and Patricia Comus, eds., 2000, A Natural History of the Sonoran Desert, Tucson: Arizona-sonora Desert Museum Press, pp.
		But the point is that water restrictions in deserts require their inhabitants to adapt in a variety of ways, in order to survive (and some even to thrive).
		Focusing on the biological definition of "deserts", Shreve emphasized the conditions which prevent plants from forming a closed covering, from attaining maximum size, and which require them to reduce their activity levels in response to harsh changes in weather.
	www.saguaro-juniper.com /i_and_i/san_pedro/ecoregions/ecoregions.html (1002 words)

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