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Sender:
Conchologists List <[log in to unmask]>
Date:
Wed, 17 Oct 2007 09:31:45 -0400
Reply-To:
Conchologists List <[log in to unmask]>
Subject:
Re: Can introductions be assimilated to range extensions?
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From:
Pete Krull <[log in to unmask]>
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 The term "range extension" to me means that someone has found a naturally
occurring, long standing population outside of the area where we already
knew they lived. The "range" of many species is greater than what we know at
any point in time only because we haven't discovered the true limits to that
range.

An "introduction", by definition, is not a range extension. Pete K.

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