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[permaculture] Exotic Species: #2 Cause of Extinction?
- From: "Kirby Fry" <peace@totalaccess.net>
- To: <permaculture@lists.ibiblio.org>
- Subject: [permaculture] Exotic Species: #2 Cause of Extinction?
- Date: Thu, 4 Jul 2002 20:38:25 -0500
Hello,
Has anyone heard the figure that exotic plant
species are the number two cause of species extinction in the U.S.A? I'm
hearing it a lot from the native plant societies. My first response to
this is; what's the number three cause? It sounds like this snippet may
come from a study which lumps all DIRECT human disturbances into one
category - i.e. farming and urbanization fall into "direct disturbance," and
then exotic plants somehow not belonging in the number one category and
sweeping second place.
This factoid is also referred to often
by ecosystem restoration and prairie enthusiasts and aimed like a weapon at
non-native vegetation - i.e. China-berry, Chinese tallow trees, bastard cabbage,
Johnson grass, and many others exotics of which I'm sure you've had your local
culprit.
My question, however, is how much money and time do
we spend on exotic / invasive (including native invasives) species eradication?
Has there ever been a species eradication project that didn't require perpetual
maintenance? Can exotics naturalize in a symbiotic manner?
Fukuoka rather surprised me in his third book, "The
Road Less Traveled," when he recommended the heavy use of pesticides to control
an inevitable outbreak of the Mediterranean fruit fly in Japan. Even
Mollison told me to get rid of a patch of Georgia Cain or elephant
grass.
Thanks,
Kirby Fry
For the real scoop on environmental and social
justice issues check out the archives of Democracy Now! http://www.webactive.com/webactive/pacifica/demnow/archive.html
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[permaculture] Exotic Species: #2 Cause of Extinction?,
Kirby Fry, 07/04/2002
-
Re: [permaculture] Exotic Species: #2 Cause of Extinction?,
Heide Hermary, 07/04/2002
-
RE: [permaculture] Exotic Species: #2 Cause of Extinction?,
Edward, 07/05/2002
-
Re: [permaculture] Exotic Species: #2 Cause of Extinction?,
Kirby Fry, 07/08/2002
- RE: [permaculture] Exotic Species: #2 Cause of Extinction?, Edward, 07/11/2002
-
Re: [permaculture] Exotic Species: #2 Cause of Extinction?,
Kirby Fry, 07/08/2002
- Re: [permaculture] Exotic Species: #2 Cause of Extinction?, Kirby Fry, 07/08/2002
-
RE: [permaculture] Exotic Species: #2 Cause of Extinction?,
Edward, 07/05/2002
-
Re: [permaculture] Exotic Species: #2 Cause of Extinction?,
Bob howard, 07/05/2002
-
Re: [permaculture] Exotic Species: #2 Cause of Extinction?,
Kirby Fry, 07/10/2002
- Re: [permaculture] Exotic Species: #2 Cause of Extinction?, Mark, 07/10/2002
-
Re: [permaculture] Exotic Species: #2 Cause of Extinction?,
Kirby Fry, 07/10/2002
-
Re: [permaculture] Exotic Species: #2 Cause of Extinction?,
Heide Hermary, 07/04/2002
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