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Posts Tagged ‘invasive species’

Cheatgrass near Gardiner, MT in 1964
Image Credit: National Park Service

There’s an interesting article in the NY Times on biological controls being tested on cheatgrass – one of which is a fungus with the striking moniker, Black Fingers of Death. Labeled the “country’s most invasive plant species,” cheatgrass covers perhaps as much as 60 million acres, with a concentration in the Intermountain West region.

“Cheatgrass is a very insidious kind of biotic virus,” said Stephen Pyne, a Western fire historian at Arizona State University. “It takes over and rewrites the operating system. Because it grows earlier, it can burn earlier,” then in its regrowth “drive off all the other competitors. That makes for a complete overthrow of the system.”

It is the association with fire that is significant, resulting in millions of dollars being invested in research to eradicate it. The article raises an interesting point. Research may result in new, effective treatments, but then industry would need to take up the mission. Markets would determine if the new treatments make it into production. If demand stems solely from the federal government, Westerners may be shaking their fists at cheatgrass for another 100 years.

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Defining what is a “native” species and what is not is more controversial than many people think. An unusual New York Times op-doc called “Hi! I’m a Nutria” examines the question. A few choice lines: “When do we get to draw a line on who’s a native? 10 years? 100 years? 30,000 years?”  And  “I’m here now. You’re here now. Let’s just be friends!” The video cannot be imbedded, so follow the link above.

Hi! I'm a nutria

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