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Date: Sun, 11 Feb 2001 18:40:07 -0600 (CST)
From: "Jonathan R. Wagner" <znc14@TTACS.TTU.EDU>
To: Philip Cantino <cantino@ohiou.edu>
Cc: PhyloCode@ouvaxa.cats.ohiou.edu, gerrymoore40@hotmail.com, dhillis@mail.utexas.edu
Subject: The root dichotomy of PhyloCoders [Re: Fwd: codes]
All, When I first read Dr. Hillis' post I was rather disturbed by its implications. However, having read Dr. Cantino's response, I see now that both he and Dr. Cantino (and Dr. Moore), and probably all of us are approaching the same problem from directions so different that points of commonality are getting lost. Although recetnt posts seem to be resolving this, to some extent, I think we need to regain a broader perspective. If I may offer an attempt at a consensus view of the roots of consensus and discord in this discussion: 1) We all (at least those who have opined in this matter) agree that a phylogenetic system of nomenclature is optimal, and we would like to see it employed. 2) None of us wants to *force* anyone to use the PhyloCode, and we know we couldn't even if we did want to. 3) All of us want to be able to continue systematic discourse with those who do not want to use the PhyloCode. 4) All of us believe that rules governing species nomenclature are vital to the PhyloCode, excepting those who do not believe that species constitute a category of real entites. Additionally, I believe we all *can* agree on certain points, but they have not been clearly made yet: 4) It would be ideal for our work (under the auspices of the PhyloCode) to be valid outside of our own circle. This translates directly to: we want other people to use our species names. 5) Our system should have some "reversability" to it. Dr. Hillis has argued for the PhyloCode being constructed so that non-practitioners can use the taxonomy within it. Dr. Cantino has argued for a long-term reversability, so that we do not commit ourselves to a nomenclature which may eventually be abandoned, and find some of our lives' work either lost or extremely difficult to recover. These amount to the same idea, although couched from fundamentally different perspectives (see below). Points where we seem to differ: A) Some of us want the PhyloCode to be viewed by others as "the next logical step" in biological nomenclature. These people (David Hillis and myself among them) might argue: A1) species names should be interchangable with those used by other workers. In other words: we should not have to "do everything twice" in order for it to be official in multiple codes. This requires that our naming of new species is AUTOMATICALLY valid under the ICZN code (and presumably other codes), and that format does not allow dots, dashes, or other frills. Our friends will be able to use our nomenclature because it is minimally different from their own. A2) Phylogenetic systematics has gained widespread support, so much so that it is now the rule rather than the exception, through the insistance and commitment of its students. Although we certainly cannot dictate the nomenclatural schema of other workers, we should commit ourselves to, and personally work for the advancement of, this scheme. If we cannot commit to the PhyloCode, how can anyone else? A3) a deliberate *replacement* scheme is best served by causing only subtle changes to the most cherished rulesof the old, and minimizing the impact of the new scheme on the daily work of all workers who use biological nomenclature. While Dr. Cantino is correct that abandonment of the binomial is a significant change (although a hyphenated or dotted form can also be a uninomial!), it is one easily grasped by outsiders, as we leave the specific epithet intact. Indeed, the fact that the species epithet cannot exist on its own in traditional taxonomy is often a puzzlement to students and young people, a fact we would all do well to remember. A4) Because a system of this kind is naturally incomplete if it does not include species, and because species are (to many of us) vital to the formulation of a complete nomenclature, the PhyloCode should not be released without them (personally, I am willing to give on this one, although I find Dave's points persuasive). B) Some of us (evidently including Dr. Cantino) advocate a maintainance of the "status quo," a tacit acceptance of the fact that we will not convert everyone immediately. Although I am not one of these people, I think they might argue: B1) Because both systems will be operating concurrently, but they will have fundamentally different methologies, we should endeavour to distinguish the names used under each scheme in a readily discernable manner. In this manner, everyone will be clear on the criteria to be applied to each name. B2) Because both systems will be operating simlulatenously, we may have to become comfortable with putting extra effort into using them both. At least our use of each system will be explicit, and perhaps therefore will show our direct support for the PhyloCode (so there!). Our friends will be able to use our nomenclature because we provide the "Cliff Notes" version in the language of the ICZN (or whatever) concurrently. B3) Because so many workers will not use the new system anyway, and it is better to explicitly differentiate the terms under which each name is used, there is little need to emphasize agreement between the systems. Indeed, it might even be counterproductive. B4) Because the species nomenclature of the PhyloCode *must* be a major change from traditional formats (see Cantino et al.), and since alpha-taxonomy is so fundamental to biological science that such a change will invite the scrutiny of all parties, and further because of the fundamental disagreements regarding how it should be employed, we should hold off on a model for species nomenclature until the PhyloCode has been established. Later, when the intial uproar has died down, we may indulge in the supreme iconoclasm. I apologize that these points are so heavily weighted towards my "side" of the debate. Of course, the reason for presenting them is to attempt to redirect discussion toward a productive conclusion. In that light, please feel free to tear them down one by one! :) Unfortunately, I feel as David Hillis does, that we are going to have to eventually take sides on this issue, that there is no happy middle ground. Personally, I feel that it will be easier for the "B group" to ADD distinctiveness to their use of the Code then for the "A group" to try to explain it away when they didn't want it there in the first place. But I would think that, wouldn't I? In terms of the original concept of phylogenetic nomenclature, I think "A" is somewhat closer to *applications* advocated by the original papers. However, the "B" group has some very practical points, and if De Quieroz and Gauthier had been concentrating on building a practical system instead of promoting a (very good) idea, we wouldn't need a PhyloCode (and, indeed, they might not have published for another ten years, and half of us would still disagree with them one way or the other). Jonathan -------------------------------------------------------------------------------- Jonathan R. Wagner, Dept. of Geosciences, TTU, Lubbock, TX 79409-1053 "Why do I sense we've picked up another pathetic lifeform?" - Obi-Wan Kenobi