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Prairies exist in central North American because of it dry climate and the occurrence of periodic droughts. Oak savannas survive because of fire, without which alien woody shrubs and trees would quickly invade.
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National Park Service U.S. Department of the Interior Natural Resource Program Center Fort Collins, Colorado Plant Community Monitoring Trend Report, Pipestone National Monument Natural Resource Technical Report NPS/HTLN/NRTR2007/029 NPS D-42 ii ON THE COVER Boutaloua gracilis (Willd.
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The information presented in Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals.
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