Zoo

• genetic drift 


  alleles that are not passed on by chance
• studbook 


  shows genetic material of organism

  this is to reduce interbreeding
• captive breeding


  successful breeding of animals in zoo care
• advantages of captive breeding

  • increase species population
  • prevent extinction
  • increase biodiversity
  • increase population size in wild
• disadvantages of captive breeding

  • species have to learn survival skills
  • interbreeding depression
  • dependant on humans
  • reintroduction can only happen if habitat is still there