"Logic of Cladistics"  Erich Schwarz schwarze at
starbase1.caltech.edu Sat Jun 11 18:02:36 EST 1994  In article
<Cr8nAE.HHt at zoo.toronto.edu>, mes at zoo.toronto.edu (Mark
Siddall)  > I am increasingly > concerned with a tendency to
crank off sequences, fire them into some > phylogenetic software
like PHYLIP, PAUP, MEGA or Hennig86 without > full understanding
of what's going on.  The argument can be made that > it is an
awkward, if not dangerous, thing to simply pump out a >
parsimony tree, a Fitch-Margoliash distance tree, a UPGMA, and
whatever > and publish them all side by side. There appears to
be in some arenas > a fundemental ignoring of the issues, as
though phylogenetic investigation > was so-much recipe work.  It
is not.  There are issues that need to be > addressed by all
practitioners in their analyses regarding multiple > trees,
assumptions, defensibility of a chosen approach, and so much >
more...     Good point.  So, how *does* one decide which
approach is most defensible for a given database