2ND POSTING: I'd like to know how an environmental cleanup in one place can
positively affect the environment far away. The agent could be a body
of water, an animal...it could be a direct or indirect effect. |
Request for Question Clarification by
omniscientbeing-ga
on
24 Nov 2003 15:44 PST
Are you looking for a real-life example drawn from the headlines or a
textbook, or can it be hypothetical, as with "Stream A undergoes xyz,
which affects Lake B, 500 miles away in the following manner..."
Also, what distance do you consider to be "far away"? 10 miles? 100
miles? 1,000 miles?
omniscientbeing-ga
Google ANswers Researcher
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Clarification of Question by
dew011-ga
on
24 Nov 2003 16:10 PST
Hi omniscientbeing ( I love that!),
Yes, I'm looking for real life examples. I'd like the skeleton of the
answer, for example: a river clean-up lead to a change in local
environmental conditions, which in turn led to a re-growth of a
forest, which led to a change in local weather, then a change in
larger weather patterns, which traveled a distance away and provided
rain to an area that had been undergoing a draught (natural or human
caused), which led to a return of a certain species of bird from that
drought-stricken area, etc. I'd also like a small explanation of how
and why each change happened .
The above was just an example- if you find another, different chain
of events like the one I mentioned, that would be helpful.
Thanks very much! I hope that helps!
DEW-011
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Request for Question Clarification by
pafalafa-ga
on
24 Nov 2003 16:37 PST
Hello again dew011-ga,
You've been so determined to get an answer that I really want to help
you out. Unfortunately, I'm leaving soon for a bit of vacation, so I
won't be around to attend to your question. But here's an idea that
perhaps one of the other researchers can turn into an answer (let them
know if it sounds like a good idea to you):
In parts of the U.S., there where unexplained declines in the
populations of a lot of song birds. Ecologists looked for local
problems and couldn't identify what was causing the decline.
Turned out, the problem was not here in the U.S., but in the tropics,
where a lot of the birds migrated during the winter. Their habitat
was being destroyed, and they had no place to successfully winter.
In stepped shade-grown coffee plantations. Turns out a lot of the
birds love the ecosytems created by shade-grown coffee trees as a
roosting spot, but such plantations had been disappearing as growing
habits changed. Deliberately growing shade grown coffee in, e.g.,
Columbia has revitalized these threatened ecosystems, and helps the
song bird population thrive in Maryland.
That's distance!
If this sounds like the type of story you're looking for, maybe a
researcher can work up a formal answer.
Well...gotta go pack. Happy Thanksgiving (if that's your bag).
pafalafa-ga
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Clarification of Question by
dew011-ga
on
24 Nov 2003 19:47 PST
Thanks, pafalafa. Happy Thanksgiving.
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