Galapagos, biogeography, geology

[John R. Grehan]

>I study evolution in East Africa, which is a geologist's playground.
>Geology can not be ignored.  But any one geological hypothesis always
>has alternatives that may stress other forces or historical considerations.

Which is why a biogeographic method such as panbiogeography may be useful
as providing additional evidence.

>  But I am having difficulty seeing how it adds up to a theory.

That's something that will be up to individuals decide, each according to
their personal criteria of what constitutes a 'theory'.

John Grehan


John Grehan
Frost Entomological Museum
Pennsylvania State University
Department of Entomology
501 ASI Building
University Park, PA 16802. USA.

Phone: (814) 863-2865
Fax: (814) 865-3048

Frost Museum
http://www.ento.psu.edu/home/Frost/index.html