Dune destruction causes many ecological problems on our coastlines.  Dunes are formed by high winds and high tides, allowing sand to grow to form a protective barrier for coastal lands and the organisms they support.  Sand dunes protect land from storm surges, hurricanes and erosion; provide habitat for coastal plants and animals; provide nesting sites for sea turtles; and provide a nesting area for birds.

    Viable solutions for the protection and growth of sand dunes are exemplified by the Anguilla Sand Dune Rehabilitation Pilot Project, in which a system of fences have been placed on the coastlines.  They are put in place to attempt to collect sand as it is blown against the fence.  Eventually the sand will cover the fence and support many different types of life forms.

    The Cape Cod National Seashore was successful in purchasing and protecting coastlines and sand dunes that line all of the Cape Cod shores and beaches.  By doing this they have prevented over-development of the coastline, and food traffic that would damage the vegetation that flourishes in the absence of human activity.

• Do dunes play a role in protecting coastal ponds that lie behind the dunes?
• What is a major tool for protecting dune surfaces?
• What are the forces bringing about dune destruction?