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Published byDoreen Walsh Modified over 9 years ago
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Chris Zajac
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North America- prairies of the Great Plains ◦ Extend from southern Canada to Gulf of Mexico Eurasia South America Africa
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Moderate rainfall Receives between 300 and 1,000 mm of precipitation each year ◦ Amount of annual rainfall influences the height of grassland vegetation ◦ Can experience droughts that last multiple years Hot summers Cold winters
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Very rich soil ◦ Deep and dark ◦ Fertile upper layers Growth and decay of many-branched grass roots Rotted roots hold soil together Help to provide a source of food for living plants Flat, treeless, covered with various types of flowers and grasses.
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Vegetation ◦ Many species of grasses Purple needlegrass, blue grama, buffalo grass, and galleta ◦ Flowers Asters, blazing stars, coneflowers, goldenrods, sunflowers, clovers, and wild indigos ◦ Many other herbaceous plants (non-woody)
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Fauna (do not all occur in same temperate grassland) ◦ Gazelles, zebras, rhinoceroses, wild horses, lions, wolves, prairie dogs, jack rabbits, deer, mice, coyotes, foxes, skunks, badgers, blackbirds, grouses, meadowlarks, quails, sparrows, hawks, owls, snakes, grasshoppers, leafhoppers, and spiders
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Cultivate grasslands ◦ Plowed land ◦ Some of the most fertile farm lands on earth ◦ Used to farm and feed the world ◦ Used to raise livestock For human consumption Milk production/ dairy products Soils have lost as much as 35% to 40% of organic matter in last 40 years
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Google. (2009). Google. Retrieved Sep. 06, 2009, from Google. Web site: http://www.google.com. Grassland. (2009, August 31). In Wikipedia, The Free Encyclopedia. Retrieved 17:30, August 31, 2009, from http://en.wikipedia.org/w/index.php?title=Grassland &oldid=311113528 Molles, M C. (2008). Ecology Concepts and Applications Fourth Edition. New York: McGraw-Hill. SLW,. Retrieved Sep. 06, 2009. Web site: http://www.runet.edu/~swoodwar/CLASSES/GEOG235 /biomes/tempgrass/tempgras.html. Webber, C. (2002). The Grassland Biome. Retrieved Sep. 06, 2009, from California Academy of Science, California. Web site: http://www.ucmp.berkeley.edu/exhibits/biomes/gras slands.php.
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