"Fuzziness" (Continuity and classification)

Byron J. Adams bjadams at UFL.EDU
Fri Jul 27 10:40:23 CDT 2001

Hi Rich -

Although they do not address the Phylocode explicitly, Kevin Nixon and Jim
Carpenter recently criticised the "phylogenetic" (node node pointing) system
of de Quieroz and Gauthier, charging that the NP system is less stable (in
terms of the net change in species included in a particular group under
different classifications) than a Linnean system that is modified to reflect
recovered evolutionary history.

I'll wager there is substantial support for their opinions among the ranks
of "working taxonomists" (sensu Carpenter).

Nixon, K. C. and J. M. Carpenter (2000) On the other "phylogenetic
systematics".  Cladistics 16:298-318.



on 7/26/01 6:48 PM, Richard Pyle at deepreef at BISHOPMUSEUM.ORG wrote:

> Just out of curiosity, of the existing taxonomists who believe that the
> nomenclature and classification system should strictly map phylogeny (i.e.,
> strict cladists), what proportion would prefer to modify the Linnaean system
> to meet their needs, rather than opt for a system like Phylocode, which is
> designed specifically to meet their needs? (after the Phylocode goes into
> effect, of course)  I'm not talking about people who employ cladistic
> methodology as one avenue in a toolbox of many (e.g., biogeography,
> morphological and functional divergence, etc.) in order to arrive at their
> proposed classifications (which might include "semi-holophyly", as Ken
> defines it). I'm talking about people who believe that the classification
> must strictly reflect the evolutionary history, without exception.  Is there
> a robust body of strictly cladistical taxonomists who reject the planned
> implementation of the Phylocode?  If there are such researhcers, have they
> read and do they understand the draft Phylocode? Have they offered their
> objections to the Phylocode framers in a constructive way?
> Aloha,
> Rich
Byron J. Adams
University of Florida
Dept. of Entomology and Nematology
Natural Area Drive
PO Box 110620
Gainesville, FL 32611-0260

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