'''Parapatric speciation''' has no specific extrinsic barrier to [[gene]] flow. The population is continuous, but the population does not mate randomly. Individuals are more likely to mate with their geographic neighbors than with individuals in a different part of the population’s range. In this mode, divergence may happen because of reduced gene flow within the population and varying selection pressures across the population’s range. | '''Parapatric speciation''' has no specific extrinsic barrier to [[gene]] flow. The population is continuous, but the population does not mate randomly. Individuals are more likely to mate with their geographic neighbors than with individuals in a different part of the population’s range. In this mode, divergence may happen because of reduced gene flow within the population and varying selection pressures across the population’s range. |