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Old 12-15-2011, 05:21 PM   #1
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Default Fending Off Invasive Species: Can We Draw The Line Without Turning To Trade Tariffs?

Fending Off Invasive Species: Can We Draw The Line Without Turning To Trade Tariffs?
by Michael Margolis

http://heartland.org/sites/all/modul...pdfs/15178.pdf
excerpt from above:
Quote:
Next to habitat loss, the main threat to endangered species is the spread of other species. The introduction of goats onto San Clemente Island, California, for example, has led to the extinction of eight plant species and threatens at least eight more. Most of the American chestnut trees are now gone, due chiefly to a fungus known as chestnut blight. And when the great African snail became a serious garden pest in Hawaii, the rosy wolf snail was introduced to prey upon it and wound up instead eradicating several other snail species native to the islands it was supposed to protect.

Hundreds of these “invasive species” have by now been identified,
and the damage they do is not limited to biodiversity...
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