<P> Sand dunes are common features of shoreline and desert environments . Dunes provide habitat for highly specialized plants and animals, including rare and endangered species . They can protect beaches from erosion and recruit sand to eroded beaches . Dunes are threatened by human activity, both intentional and unintentional . Countries such as the United States, Australia, Canada, New Zealand, the United Kingdom, and Netherlands, operate significant dune protection programs . </P> <P> Stabilizing dunes involves multiple actions . Planting vegetation reduces the impact of wind and water . Wooden sand fences can help retain sand and other material needed for a healthy sand dune ecosystem . Footpaths protect dunes from damage from foot traffic . </P> <P> The location of the dune limits the types of plant that can thrive there . Beach dunes consist of the foredune, the angled side which faces the ocean, the sand plain at the top of the dune, which may or may not be present, and the backdune, the angled side that faces away from the ocean . </P>

What can be done to prevent the migration of beach dunes
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