Summer drawdown of the water level permits growth of waterfowl food plants finding favorable conditions on 

 moist soil. Reflooding in the fall makes these foods available to the ducks and geese using them. (Photo by 

 F. M. Uhler) 



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Quality as well as quantity of water is important in the growth of marshland plants, as shown by the effects of 

 salinity levels at five different concentrations tested at Utah State University by graduate students in wildlife 

 management. (Photo by Utah Cooperative Wildlife Research Unit) 



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