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Topic: Fresh water ecoregion

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	Ecoregion - Wikipedia, the free encyclopedia
		Another way of looking at an ecoregion is a "recurring pattern of ecosystems associated with characteristic combinations of soil and landform that characterise that region" (Brunckhorst, 2000).
		The biodiversity of flora, fauna and ecosystems that characterise an ecoregion tend to be distinct from that of other ecoregions.
		The use of the term ecoregion is an outgrowth of a surge of interest in ecosystems and their functioning.
	en.wikipedia.org /wiki/Ecoregion (390 words)

	Science Program > Issues in Ecology > (Site not responding. Last check: 2007-10-31)
		Fresh water is vital to human life and economic well-being, and societies extract vast quantities of water from rivers, lakes, wetlands, and underground aquifers to supply the requirements of cities, farms, and industries.
		Fresh water is vital to human life and economic well-being, and societies draw heavily on rivers, lakes, wetlands, and underground aquifers to supply water for drinking, irrigating crops, and running industrial processes.
		Water flows that vary both season to season and year to year, for example, are needed to support plant and animal communities and maintain natural habitat dynamics that support production and survival of species.
	www.esa.org /science/Issues/TextIssues/issue10.php (9106 words)

	Learn more about Ecoregion in the online encyclopedia. (Site not responding. Last check: 2007-10-31)
		Learn more about Ecoregion in the online encyclopedia.
		"We define ecoregions as relatively large units of land or water containing a distinct assemblage of natural communities and species, with boundaries that approximate the original extent of natural communities prior to major land-use change.
		Others have defined ecoregions as areas of ecological potential based on combination's [sic] of biophysical parameters such as climate and topography." (source: World Wildlife Fund).
	www.onlineencyclopedia.org /e/ec/ecoregion.html (222 words)

	Little Known Facts About The Ocean - MarineBio.org
		Less than 1% is fresh water, and 2-3% is contained in glaciers and ice caps.
		The speed of sound in water is 1,435 m/sec - nearly five times faster than the speed of sound in air.
		At a speed of 97 km/day, the Gulf Stream moves a 100 times as much water as all the rivers on earth and flows at a rate 300 times faster than the Amazon, which is the world's largest river.
	www.marinebio.com /MarineBio/Facts (1669 words)

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