O2 SPECIATION ey Notes Reproductive The reproductive species concept focuses on the idea that species concept species exist and maintain their genetic integrity and distinctness because they do not interbreed. The biological pecies concept and the recognition species concept both define species in terms of interbreeding. His view contrasts with the practical definition of species on the basis of distinguishing morphological characters Gene flow describes he movement of genes among populations Gene fl through interbreeding, dispersal and migration. High gene flow causes populations to become genetically similar to one another Restricted gene flow allows differentiation to occur among populationsThe reproductive species concept focuses on the idea that species exist and maintain their genetic integrity and distinctness because they do not interbreed. The biological species concept and the recognition species concept both define species in terms of interbreeding. His view contrasts with the practical definition of species on the basis of distinguishing morphological characters. Key Notes Reproductive species concept O2 SPECIATION Gene flow describes he movement of genes among populations through interbreeding, dispersal and migration. High gene flow causes populations to become genetically similar to one another. Restricted gene flow allows differentiation to occur among populations. Gene flow