Evolution in vary environments

Posted by Paul Paryski on Aug 17, 2007; 9:37pm
URL: http://friam.383.s1.nabble.com/Evolution-in-vary-environments-tp524542.html

St. Nick,
 
Generally the biodiversity hotspots are tropical  or semi-tropical  island
systems with very high mountains.  Such sites have a large spread of  unique
climatic and orthographic conditions.  In addition, if by chance or  migration
continental species land on such ecosystems they quickly  speciate.  An example:
the American robin landed in Hispanola and over  hundreds of year speciated,
a to become the  Laselle Thrush (Turdus swalesi), and more than 30% of the  
flora on Hispanola is endemic including Salvia  paryskii , a tree.  The island
has 11  ecozones.
 
cheers  Paul.



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