[Taxacom] Biogeographical reasoning

Karl Magnacca kmagnacca at alumni.wesleyan.edu
Tue Dec 26 23:29:24 CST 2006

On 27 Dec 2006 at 14:40, Bob Mesibov wrote:
> Biogeographers 100 years ago didn't have the possibility of mobile terranes. 
> Orthodox evolutionists 50 years ago didn't have the possibility of sympatric 
> speciation, apart from polyploidy in higher plants. What possibilities are 
> we failing to imagine today?

Maybe many, maybe even the correct answer.  But since not only Ken but 
apparently everyone else can't think of them, we have no choice but to 
go with what we've got.  There's no point in sitting around and waiting 
for a novel solution to pop up instead of investigating whether there is 
evidence for the known ones.

Karl Magnacca
UC-Berkeley, ESPM Dept.
137 Mulford Hall #3114
Berkeley, CA 94720

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