Monday, November 28, 2011

November 28, 2011

Invasive species are a blight on U.S. landscape

By Elizabeth Weise, USA TODAY

America is under siege — not by a foreign power, but by invasive species slowly working their way across the nation, leaving a sometimes-devastated and often-changed landscape in their wake.

Just as Dutch elm disease from Asia removed an iconic tree from the American landscape beginning in the 1940s, the emerald ash borer may conquer the ash tree in coming years. West Nile virus from Africa killed 57 Americans last year. And work crews often encounter giant Burmese pythons in South Florida.

The latest addition to the list of non-native creepy-crawlies is the hairy crazy ant. The tiny foragers are believed to have come from South America. They first got to the Caribbean in the late 19th century and are working their way through Florida and the Southeast...

Read the full story at link.

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