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fishing industry. It is estimated that 200 kinds <br />of fish and large quantities of shellfish depend <br />on wetlands for all or part of their life cycles. <br />In addition to being exceptional nurseries <br />of life, wetlands have many ecological virtues. <br />They are natural filters fo[ removing waste <br />and pollutants from rivers'and streams and <br />for purifying underground aquifers. They <br />store water during rainy anq~ flooding seasons~ <br />and later release it slowly into streams, rivers, <br />and aquifers. Tidal wetlands protect shore-- <br />lines from erosion by waves. <br />Because of the very nature of their often <br />prolific plant life, wetlands perform sig- <br />nificant, essential functions. In the process of <br />photosynthesis, for example, all green vegeta- <br />tion absorbs carbon dioxide from the air and <br />returns oxygen to it. This is necessary for sus- <br />taining life. Plants in wetlands, however,, are <br />unique in that they are especially efficient in <br />this process. _. - ........ ~' /- .:i <br /> For centuries many countries have'" recog- <br />nized the inestimable value of wetlafid man- <br />agement for food production. China and <br />India, for example, lead the world in rice pro- <br />duction, with other countries of Asia not far <br />behind. Grown in wedands called paddies, <br />rice is one of the world's most important food <br />crops. About ball the' world's population eat <br />rice as their chief food. The United States and <br />Canada began in time to realize the impor- <br />tance of wetlands and bogs for-their produc- <br />tion of rice and cranberries~.... <br /> Wildlife too share in the feast provided by <br />the wetlands. Not only are seeds and insects in <br />abundance for the birds but they also feed the <br />fish and crustaceans that spawn' and grow to <br />maturity in the wetlands. Ducks, geese, and <br />other waterfowl in turn feed 'on these under: <br />water creatures swimming in abundance in <br />these oases of life. The current ecology bal- <br />ances matters to some extent by serving up a <br />variety of fowl to the four-footed creatures <br /> <br /> who may wander into the wetlands looking <br /> for a meal. In the wetlands there is something <br /> for everything. They are truly nurseries of the <br />. world. · .. ...... <br /> <br /> The Raoo to Destroy Wetlands <br /> <br />' In the' United States, the man who became <br /> 'its first president opened the floodgates of <br /> mass destruction of wetlands when in 1763 he <br /> 'formed a company to drain 40,000 acres of <br /> the Dismal Swamp--a wild marshland, a <br /> haven for wildlife--on the Virginia-North <br /> Carolina border. Ever since then, America's <br />· wetlands have been viewed as a nuisance~ .a <br /> roadblock to development, a source of sick- <br /> ness and disease, a hostile environment to be <br /> conquered and destroyed at any cost. Farmers <br /> were encouraged to drain wetlands and use <br /> them for cultivated land and were compensat- <br /> ed for doing so. Highways were built where <br /> wetlands teeming with exotic life once were. <br /> Many became sites for urban development. <br /> and shopping centers or were used as conve- <br /> nient shallow depressions for dumping gar-. <br /> bage. .. <br /> tn the last few decades of this century, the <br /> United States has been destroying its wetlands <br /> at the rate of 500,000 acres a year. Today, only.. <br /> about 90 million-acres remain. Consider, for. <br /> example, the pothole region of North Ameri- <br /> ca. In a 300,000-square-mile arc of land that <br /> stretches from .,Llberta, Canada, to Iowa in <br /> the United States, thousands of prairie wet- <br /> lands were- the breeding grounds for millions <br /> upon millions of ducks. It is said that in flight <br /> they would darken the sky like dense clouds. <br /> Today their numbers have dwindled alarm- <br /> ingly. : "....~ · .-,..; , <br /> The long-range problem, however,' is this: <br /> When the wetlands are destroyed, the feeding- <br /> grounds are gone. Without adequate foo6, <br /> ducks lay fewer eggs, and the hatching rate of <br /> those that are laid is notably affected. As their <br /> habitats are destroyed, more ducks flock to <br /> <br />Awaket' )anuary 22, 1994 <br /> <br /> <br />