12-5-07 - BIO 311D Grassland (prairies, steppes)-1 also...

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BIO 311D 05/12/2007 10:03:00 Grassland (prairies, steppes)-1 also called temperate grassland moderate rainfall: 15-30 inches per year characteristics: o large quantities of grasses (few shrubs and trees) o many burrowing rodents o herds of large grazing animals o rich soil often converted to agriculture hot summer and cold winters slow succession why is the USA number 1 country for grain production (rice, corn, wheat, …) o they all grow well in this area Relic conifer forest dominant northern regions 60-65 million years ago remain little bit of California (pacific coast regions of California to Canada cone-bearing trees related to spruce-fur o Sequpiadendron     Sequpoia,  and  Metasequoia  (found in China early  last century—living fossil) o tallest tree and biggest trees (440 feet/1,300 tons) Chaparral—Mediterranean vegetation
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This note was uploaded on 04/07/2008 for the course BIO 311D taught by Professor Reichler during the Fall '08 term at University of Texas.

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12-5-07 - BIO 311D Grassland (prairies, steppes)-1 also...

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