Miles of linked habitat sounds like a good thing - until the ants show up.
Environmentalists who promote the notion of unintended consequences regarding genetic modification never considered that wildlife corridors might have risks also - but they do, as a recent study showed. Julian Resasco and colleagues at the University of Florida found that one type of fire ant used wildlife corridors to dominate recently created landscapes.
"Although habitat corridors are usually beneficial, they occasionally have negative effects," Resasco said."Sometimes they can help invasive species spread in exactly the same way they help native species."