Numbers dropping off???

Cris Guppy & Aud Fischer cguppy at
Wed Jun 9 20:33:29 EDT 1999

You are correct, it was poor phrasing. What I should have said was "There is
no known effect on most butterfly populations, and habitat loss is
apparently having much larger effects". You are correct however that these
conclusions are basically anecdotal.

-----Original Message-----
From: Michael Gochfeld <gochfeld at>
To: cguppy at <cguppy at>; aa6g at AA6G.ORG
<aa6g at AA6G.ORG>; leps-l at <leps-l at>
Date: June 9, 1999 4:30 AM
Subject: Numbers dropping off???

>I am puzzled by the following phrase: "... but there does not seem to be
>a significant effect on most butterfly populations....."
>How in the world do we know that.  There are virtually no studies of
>butterfly populations or population dynamics to my knowledge.
>I agree that habitat destruction (and perhaps global climate) are bigger
>factors, but in an environment already degraded and diminishing rapidly,
>what might have been "sustainable exploitation" could easily become
>"fatal overexploitation".
>So I don't think we know enough to exonerate commercial collecting."
>M Gochfeld

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