[Taxacom] Taxacom Digest, Vol 133, Issue 7

[Antonio López Almirall]

-----Original Message-----
 From: "Antonio López Almirall" <cycas at mnhnc.inf.cu>
 To: taxacom at mailman.nhm.ku.edu, taxacom-request at mailman.nhm.ku.edu
 Date: Thu, 18 May 2017 13:07:18 -0400
 Subject: Re: Taxacom Digest, Vol 133, Issue 7


1. Metapopulation vicariance paper (John Grehan)
The phenomenon you describe is good for us, but a lineage can remain in the 
area for much more than ten million years. Cuba is an oceanic island formed 
from a volcanic arc. Lives in a small territory of Cuba the only species of 
pine "silvestris" subsection (related with Pinus silvestris) that there is 
in America, Pinus tropicalis Morelet. Relatives of this species are in 
Eurasia, except the Cuban and another in Canary Islands close to Africa. The 
species, according to the molecular clock bottom has 40 million years old 
slightly to the Greater Antilles. That means that lineage was there much 
earlier, probably during fractionation of Pangea, before forming of the 
Caribbean plate. Therefore, the only possible explanation for their presence 
is yours.
Antonio López Almirall
Presidente del Consejo Científico
Museo Nacional de Historia Natural de Cuba
cycas3004 at gmail.com, cycas at mnhnc.inf.cu