[Taxacom] Nothofagus flying to NZ
jgrehan at sciencebuff.org
Fri Dec 22 12:16:31 CST 2006
I would be interested to know what Ken Kinman defines as a "good case"
made by Knapp et al 2005. As far as I can see they take fossils that
only represent minimal divergence dates and magically (I use this word
because I am unaware of any scientific process involved) turn them into
absolute or maximal divergence dates when mapped onto a theoretical
From: taxacom-bounces at mailman.nhm.ku.edu
[mailto:taxacom-bounces at mailman.nhm.ku.edu] On Behalf Of Ken Kinman
Sent: Wednesday, December 20, 2006 11:07 PM
To: taxacom at mailman.nhm.ku.edu
Subject: Re: [Taxacom] Two primitive mammals in one week
The paper by Knapp et al., 2005, makes a very good case that
long-distance dispersal of Nothofagus has occurred over the Tasman Sea.
Nothofagus apparently doesn't like sea-water, but why has dispersal by
migrating birds been rejected as a mechanism in the past? Even if
Nothofagus nuts are not eaten by birds today, perhaps they were eaten by
some migrating species of bird which is now extinct.
Geoff Read wrote:
>This is way out of my expertise zone, but I'm going to read Knapp et al
>(2005) to get their POV.
>Knapp, M., Stockler, K., Havell, D., Delsuc, F., Sebastiani, F. &
>Lockhart, P.J. (2005) Relaxed molecular clock provides evidence for
>long-distance dispersal of Nothofagus (southern beech). PLoS Biology,
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