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World Nomads Create Scholarships Photography 2018 Applications Everglades The River Of Grass And An Ecosystem In Distress Everglades: The River of Grass and an Ecosystem in Distress by Tatianna Vassilopoulos (United States of America) United States of America Shares Facebook Twitter The Everglades first emerged in South Florida about 5,000 years ago, after the last ice age ended. The once-arid peninsula became a teeming swamp, where a free-form River of Grass flowed 60 miles wide. It was home to the Calusa, Tequesta, Seminole, Miccosukee, and Creek tribes. The Everglades is the only place in the world where both alligators & crocodiles. Less water = less food for the gator. They weigh < 20% than their counterparts. Among the worst threats are the changed water flow caused by the dams & canals built to divert water away from sugar farms & development The park is home to 68 endangered plants & animals species, including manatees & panthers. Yet humankind has drained, encroached, introduced nonnative species & developed the margins of the Everglades so that the entire area is 1/2 the size it was a century ago. Exotic Plants like Brazilian pepper & animals like Burmese pythons can be thought of as biological pollution because they displace natives & threaten to disrupt ecosystem balance by outcompeting native flora & fauna for food & space due to lack of population controls such as predators & disease. Saltwater encroachment into marshes will cause rapid retreat of coastal mashes. Restoration is our best hope of keeping the Everglades wet & holding back saltwater invasion. Sea-level rise has caused changes in wading-bird feeding locations & saltwater intrusion into areas that were freshwater.
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