Population structure of guppies in north-eastern Venezuela, the area of putative incipient speciation Herdegen, Magdalena ; Alexander, Heather J. ; Babik, Wiesław ; Mavárez, Jesús ; Breden, Felix ; Radwan, Jacek Abstract Publication: BMC Ecology and Evolution Pub Date: 2014 DOI: 10.1186/1471-2148-14-28 Bibcode: 2014BMCEE..14...28H