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Throughout the world, riparian habitats have been dramatically modified from their natural condition. Dams are one of the principal causes of these changes, because of the alteration of water and sediment regimes (Nilsson and Berggren 2000). Because of the array of ecological goods and services provided by natural riparian ecosystems (Naiman and Decamps 1997), their conservation and restoration have become the focus of many land and water managers. Efforts to restore riparian habitats and other riverine ecosystems have included the management of flow releases downstream of dams to more closely mimic natural flows (Poff et al. 1997),. But dam removal has received little attention as a possible approach to riparian restoration. http://www.ucpressjournals.com/journal.php?j=bio
Shafroth et al. (Tue,) studied this question.
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