Sunday, January 29, 2006
Last year's record hurricane season didn't just change life for humans. It changed nature, too.
Everywhere scientists look, they see disrupted patterns in and along the Gulf of Mexico. Coral reefs, flocks of sea birds, crab- and shrimp-filled meadows and dune-crowned beaches were wrapped up in - and altered by - the force of hurricanes Katrina, Rita and Dennis.
"Nothing's been like this," said Abby Sallenger, a U.S. Geological Survey oceanographer, during a recent flight over the northern Gulf Coast to study shoreline changes.
For him, the changes are mind-boggling: Some barrier islands are nearly gone; on others, beaches are scattered like bags of dropped flour.
Hurricanes have been kneading the Gulf Coast like putty for eons, carving out inlets and bays, creating beaches and altering plant and animal life - but up to now, the natural world has largely been able to rebound. Trees, marine life and shoreline features tourists and anglers enjoyed in recent years were largely the same types as those 17th century buccaneers and explorers encountered.
But scientists say the future could be different. Nature might not be able to rebound so quickly. The reason: the human factor.
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