[CPN] next set of CBM-related proposals

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I am fine with Phil's proposal.  -- kp


> Folks, 
>  
> This is a worthwhile discussion that should definitely be continued, but I 
> realize now that I made a mistake in even including the glossary 
> definition of Taxon in this round of voting.  This was the one entry in 
> David's Sept. 29 set of comments that I suggested we postpone because it 
> will take a while to work through the many uses of the term "taxon" in the 
> code.  In my Oct. 24 message in which I inserted replies to David's 
> comments, I noted that we agreed to defer voting on the glossary 
> definition of Taxon---but I unfortunately forgot to remove this item from 
> the list of changes that we are voting on right now.  My apologies for the 
> confusion! 
>  
> The attached document is identical to the one I sent you on Friday except 
> that I have deleted the glossary definition of Taxon as one that we are 
> voting on at this time.  I am not trying to suppress discussion of this 
> item.  We will return to this and related changes in the code (and also 
> revision of Art. 21), but after many months of discussion, I think it is 
> best that we vote on the several changes that no one has expressed 
> disagreement about. 
>  
> I suggested on Friday that we call a vote on this set of changes today if 
> there were no comments by Sunday and if no one objected to this schedule. 
> No one has objected to the schedule, and the only comments are on the 
> glossary definition of Taxon, so let's please vote on the other changes 
> (attached).  Please send your vote to this listserv by this Friday (Nov. 
> 2).  [If someone feels this is insufficient time in which to vote, please 
> say so, but we have been discussing the CBM proposal for months.] 
>  
> Phil 
>  
>  
>  
>  
> On Oct 29, 2012, at 10:56 AM, de Queiroz, Kevin wrote: 
>  
>> When it comes to the definition of "clade", it's a bit over-simplified 
>> to declare that other people are simply wrong.  They would argue that 
>> the definition of "clade" is "an ancestral _species_ and all of its 
>> descendants".  Moreover, some of them might also argue that it is useful 
>> to distinguish terminologically between groups composed of an ancestor 
>> and all of its descendants that conform (more or less) to a nested 
>> hierarchical pattern (species, uniparental organisms) and those that do 
>> not (biparental organisms). 
>>  
>> Kevin 
>> 
 
>> From: cpn-bounces at listserv.ohio.edu 
[ cpn-bounces at listserv.ohio.edu 
] On 
>> Behalf Of David Marjanovic [ david.marjanovic at gmx.at 
] 
>> Sent: Monday, October 29, 2012 1:29 AM 
>> To: Committee on Phylogenetic Nomenclature 
>> Subject: Re: [CPN] next set of CBM-related proposals 
>>  
>>> I do not favor Mike's proposed  revision (of the definition of 
>>> "taxon") for the following reason: some people view clades/higher 
>>> taxa not as monophyletic groups of organisms but as monophyletic 
>>> groups of species. 
>>  
>> They're wrong. "Clade" = "an ancestor and all its descendants", even if 
>> that's a small part of a species or partially overlaps with one or 
>> several species. The PhyloCode allows the naming of LITUs, as it should. 
>>  
>> Besides, under most species concepts, not only are "speciation" and 
>> "cladogenesis" not synonyms*, but neither is even a subset of the other; 
>> inevitably, then, clades will usually contain entire species and parts 
>> of other species under those species concepts. 
>>  
>> * Although lots of people, even in the primary literature, use 
>> "speciation" when they mean "cladogenesis". It's as if almost nobody 
>> even knew the latter term. 
>> 
 
>> CPN mailing list 
>>  CPN at listserv.ohio.edu 
 
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>>  
>> 
 
>> CPN mailing list 
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>  
> 
 
> CPN mailing list 
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>  
-- 
Kevin Padian
Department of Integrative Biology &
Museum of Paleontology
University of California, Berkeley CA 94720-3140
510-642-7434 http://www.ucmp.berkeley.edu/people/padian/home.php 

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