[Annelida] Swima the swimmer]

Greg Rouse via annelida%40net.bio.net (by grouse from ucsd.edu)
Sat Aug 22 17:53:29 EST 2009


Kirk,
Please consult the Supplement for details on a maximum parsimony  
analysis that I assume you would not find dubious. A total evidence  
analysis (i.e., a "limited set of sequence data", plus what must also  
be called a "limited set" of morphological data) will appear in due  
course that may alleviate your other concern.
greg

On Aug 23, 2009, at 7:15 AM, J. Kirk Fitzhugh wrote:

> The phylogenetic hypotheses are only 'solid' insofar as they explain  
> a limited set of sequence data. Given that the authors must know  
> they are actively avoiding considering all sorts of other relevant  
> data that are in need of being explained in the same context, e.g.  
> the setae as Jim Blake noted, and the use of Bayes Theorem is not  
> meant for the inference of hypotheses, then Torsten's endorsement is  
> ill-founded at best.
>
> But then, let's not quibble with the fine points of doing good  
> science - it's more important to impose blind acceptance of methods  
> by even more blind endorsement.
>
> Kirk
>
> Struck, Torsten wrote:
>>
>> Indeed, it is a nice discovery and very interesting. Moreover, the
>> phylogenetic hypotheses are very solid (not at all "dubios at  
>> best") and
>> good in comparison to several other analyses out there.
>>
>> Nice work Karen,
>>
>> Torsten.
>>
>>
>> On 8/22/09 10:30 AM, "Kirk Fitzhugh" <kfitzhug from nhm.org> wrote:
>>
>>
>>> Nice discoveries indeed. It's unfortunate that the scientific  
>>> merits of the
>>> phylogenetic hypotheses are dubious at best. But then, it *is*  
>>> published in
>>> Science. ;-)
>>>
>>> Kirk
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: annelida-bounces from oat.bio.indiana.edu on behalf of Geoff Read
>>> Sent: Sat 8/22/2009 12:54 AM
>>> To: <Annelida list
>>> Subject: [Annelida] Swima the swimmer
>>>
>>> FYI
>>>
>>> Osborn KJ, Haddock SHD, Pleijel F, Madin LP, Rouse GW 2009. Deep- 
>>> Sea, Swimming
>>> Worms with Luminescent "Bombs". Science 325: 964 (and online  
>>> 'supplement').
>>>
>>> http://www.sciencemag.org/cgi/citmgr?gca=sci;325/5943/964
>>>
>>> Swima bombiviridis named (new genus, new species of acrocirrid)
>>>
>>> Abstract: "By using remotely operated vehicles, we found seven  
>>> previously
>>> unknown species of swimming annelid worms below 1800 meters.  
>>> Specimens were
>>> large and bore a variety of elaborate head appendages. In  
>>> addition, five
>>> species have pairs of ellipsoidal organs homologous to branchiae  
>>> that produce
>>> brilliant green bioluminescence when autotomized. Five genes were  
>>> used to
>>> determine the evolutionary relationships of these worms within
>>> Cirratuliformia. These species form a clade within Acrocirridae  
>>> and were not
>>> closely related to either of the two known pelagic cirratuliforms.  
>>> Thus, this
>>> clade represents a third invasion of the pelagic realm from  
>>> Cirratuliformia.
>>> This finding emphasizes the wealth of discoveries to be made in  
>>> pelagic and
>>> deep demersal habitats."
>>>
>>>
>>> Nice discovery. I want to know what they feed on, and how.
>>>
>>> Geoff
>>>
>>>
>>> --
>>>
>>>  Geoff Read <g.read from niwa.co.nz>
>>>   http://www.annelida.net/
>>>   http://www.niwa.co.nz/about-niwa
>>>  ***************************
>>>
>>>
>>> NIWA is the trading name of the National Institute of Water &  
>>> Atmospheric
>>> Research Ltd.
>>>
>>> _______________________________________________
>>> Annelida mailing list
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>>> Resources: http://www.annelida.net
>>>
>>>
>>>
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>>
>>
>> ------ CONTACT INFORMATION ------
>> PD Dr. habil. Torsten H. Struck
>> University of Osnabrück
>> Department of Biology/Chemistry
>> Zoology
>> Barbarastrasse 11
>> D-49069 Osnabrück
>> Germany
>>
>> Phone: +49-541-9693450
>> Fax: +49-541-9692587
>> e-mail: struck from biologie.uni-osnabrueck.de
>
> <ATT00001.txt>

Greg Rouse
Scripps Institution of Oceanography, UCSD
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La Jolla CA, 92093-0202
USA

http://spineless.ucsd.edu/

e-mail: grouse from ucsd.edu
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