patrick at corona.med.utah.edu
Sat Apr 27 11:33:08 EST 1996
On 23 Apr 1996, BROWN,DAVID,MR wrote:
> of 150 - 200 species a day arrived at? 4) Is this a particularly high
> number, i.e. if we weren't around to muck things up, how many species
> would be dissapering each day?
This is not my area but I do have a basic comment...
It would be erroneous to make any judgements about whether it is OK or
not for humans to destroy species in any number based on what might occur
in our absense. There is a major difference in the way species are
destroyed by nonhuman processes vs human processes. The spread of
species would be different AND in the case of nonhuman extinction, a
natural, dynamic balance in species would occur. With human-caused
extinction, there is no balance for we destroy too fast for a balance of
any kind to be reached. Another aspect is that we have a choice as to
what we do to habitat and species but lack foresight as to what the
consequences might be...this must be taken into account no matter what
the numbers might be when estimating the two.
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