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        Summary 
        Geographic illustration of spatial aspects of speciation. Edited by  Fvasconcellos on  2007-06-03 as per request on  Wikipedia:Featured article candidates/Evolution.
 Original description:
 Geographic illustration of SPATIAL ASPECTS OF SPECIATION:
        
         - allopatric speciation - physical barrier divides population
 
         - peripatric speciation - small founding population enters isolated niche
 
         - parapatric speciation - new niche found adjacent to original one
 
         - sympatric speciation - speciation occurs without physical separation
 
        
        Drawn in  Inkscape by  Ilmari Karonen, based on  en:Image:Speciation modes.png and  http://www.bio.miami.edu/dana/160/speciation.jpg from  http://www.bio.miami.edu/dana/160/160S04_6.html
        Adapted from: Spring 2006, Lecture Notes for EVOLUTION AND BIODIVERSITY class (BIL 160 Section HJ) by Dr. Dana Krempels, dana at miami dot edu.
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