[Taxacom] molecular clock critique from panbiogeography critique

[John Grehan]

How do they 'suggest' that?

John Grehan
 


> -----Original Message-----
> From: taxacom-bounces at mailman.nhm.ku.edu [mailto:taxacom-
> bounces at mailman.nhm.ku.edu] On Behalf Of Dr. David Campbell
> Sent: Monday, June 29, 2009 2:18 PM
> To: taxacom at mailman.nhm.ku.edu
> Subject: [Taxacom] molecular clock critique from panbiogeography
critique
> 
> Freshwater mollusks are another group in the Caribbean with curious,
> poorly understood biogeographic affinities that suggest that not all
of
> Cuba and Jamaica were submerged.
> 
> 
> >(It gets tricky because so many clock studies are calibrated using
the
> assumption that island endemics can be no older than their island).<
> 
> This is only true of that subset of molecular clock studies that are
> calibrated...
> 
> 
> --
> Dr. David Campbell
> 425 Scientific Collections Building
> Department of Biological Sciences
> Biodiversity and Systematics
> University of Alabama, Box 870345
> Tuscaloosa AL 35487-0345  USA
> 
> 
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