[Taxacom] Phylogenetic game

[Richard Zander]

I don't think anything (any more) about paraphyletic species. This is a phylogenetic term for names that do not organize "right" on a cladogram. I think about progenitor-descendant species, and reject "paraphyly" as just another pattern-oriented term.
 
 
_______________________
Richard H. Zander
Missouri Botanical Garden
PO Box 299
St. Louis, MO 63166 U.S.A.
richard.zander at mobot.org
 

________________________________

From: taxacom-bounces at mailman.nhm.ku.edu on behalf of Curtis Clark
Sent: Tue 12/14/2010 12:27 AM
To: taxacom at mailman.nhm.ku.edu
Subject: Re: [Taxacom] Phylogenetic game



On 12/13/2010 11:14 AM, Richard Zander wrote:
> On paraphyly, suppose
> a = polar bear
> b = brown bear molecular strain 1
> c = brown bear molecular strain 2
>
> A strict cladist would say "((a,b)c) . . .
>
> A loose cladist would say (but not in print) ((a)b)c...
>
> An evolutionary systematist would say "the polar bear line apparently budded off one of the brown bear lineages."
An evolutionary cladist would say "Species are the smallest units of
phylogeny, and anybody who thinks paraphyletic species justify
paraphyletic higher taxa is a dogmatist."

--
Curtis Clark                  http://www.csupomona.edu/~jcclark/
Director, I&IT Web Development                   +1 909 979 6371
University Web Coordinator, Cal Poly Pomona


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