|Field Trip - Indiana Dunes National Lakeshore - 1 of 12
By Paul Katula, Dateline: GARY, Ind. (May 27, 2006)
Only sand, sunbathers near the water:
Succession begins here, very close to the water, where waves bring in plant and animal debris that feeds beetles, gulls, and raccoons. The waves also roll the sand inland, where plants pile it up to form a "foredune," and scour the sand, washing away any seeds that arrive here on the wind, in the water, or on the feet of animals. People also play a role in removing seeds and may trample the sand, which makes it unsuitable for plants to take root. Only a few thousand years ago, this shoreline was a mile inland, where our journey back through time will end.