[FRIAM] Evolution in vary environments

[David Breecker]

If memory serves, Madagascar had an anomolous geological history, vis  
a vis large-scale tectonic plate movements. That could (if accurate)  
be relevant to its evolutionary pattern.
db

On Aug 15, 2007, at 11:42 AM, Nicholas Thompson wrote:

>
> Roger,
>
> Is it possible w e are confusing two variables here?  Variability  
> in the environment and isolation of the environment from others.
>
> Galapagos Islands have both a high level of endemicity and many  
> missing taxa, no?  So, Madagascar is just a rather extreme example  
> of island geography?
>
> Nick
>
> Nick
>
>
>
> Message: 24
> Date: Tue, 14 Aug 2007 20:06:54 -0600
> From: "Roger Critchlow" <rec at elf.org>
> Subject: Re: [FRIAM] Evolution in varying environments
> To: nickthompson at earthlink.net, "The Friday Morning Applied
> Complexity Coffee Group" <friam at redfish.com>
> Message-ID:
> <66d1c98f0708141906p5bef8a7bw88b4f6a224bd0add at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> On 8/14/07, Nicholas Thompson <nickthompson at earthlink.net> wrote:
> >
> > Hmm Roger. I always thought that unpredictable environments  
> contribute
> > more within-species diversitity and FEWER species.
> >
> > Nick
> >
>
> Nick --
>
> Apparently a generalization that fits some of the facts.
>
> The communities of Madagascar are characterized by high
> levels of endemicity, great species diversity in some taxonomic
> groups, and a complete absence of others.
>
> -- rec --
> -------------- next part --------------
>
>
> Nicholas S. Thompson
> Research Associate, Redfish Group, Santa Fe, NM (nick at redfish.com)
> Professor of Psychology and Ethology, Clark University  
> (nthompson at clarku.edu)
>
>
>
>
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