allopatric speciation

• when will allopatric speciation occur


  due to geographical isolation
• what is allopatric speciaion

  this is speciation caused by physical barriers
• give an example of geographical isolation

  physical barriers such as rivers or mountain ranges
• what will a physical barrier cause the population to split into

  two separate demes
• what will cause different allele frequencies to form between each deme

  different selective pressures
• what is the first step of allopatric speciation

  the initial population will be split in 2 due to a physical barrier
• what happens after the population has been split in two in allopatric speciation

  mutations and different selection pressures will cause changes in the population