Fwd: Establishing taxa as "present"
James Waddick (Tue, 02 Sep 2008 14:34:15 PDT)

Another problem with 'Present' is that by this logic, all the
others are 'Absent' and you effectively have a white list (GOOD) and
a black list (EVIL). Try taking any plant from the 'dark side' into
the light.
I think the Australia example is a good example of a bad system.

And it also suggest that every species and subspecies will be
designated good or bad regardless of genetic affinity or the rest of
the genus/family.

Oh dear. Jim W.
--
Dr. James W. Waddick
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