This is much more likely in the case of land or freshwater species,
which tend to have much more restricted distributions.  In such cases,
endangered species legislation is appropriate.  However, in the vast
majority of cases, it is habitat destruction or commercial
exploitation that are the real problems.  Banning shell collection
while permitting habitat destruction or overfishing does not protect
anything.

On Fri, Aug 20, 2010 at 1:02 PM, Marien Faber <[log in to unmask]> wrote:
> Dear Fabio,
> you wrote: "I did not mean to suggest that shell collectors do not have an
> impact on driving populations to extinction; I believe that in some cases,
> there is enough collecting pressure to do so in the case of species with
> restricted distributions".
> Please give an example so that politicians an legislators will be able to
> legally ban shell collecting and many types of malacological research, in
> particular those done by amateur malacologists.
> Marien
>
>
>



--
Dr. David Campbell
4830 University Blvd E H4
Tuscaloosa AL 35404
"I think of my happy condition, surrounded by acres of clams"

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