C4  Conservation of Biodiversity

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Essential Idea:

Entire communities need to be conserved

in order to preserve biodiversity


  • An indicator species is an organism used to assess a specific environmental condition
  • Relative numbers of indicator species can be used to calculate the value of a biotic index
  • In situ conservation may require active management of nature reserves or national parks
  • Ex situ conservation is the preservation of species outside their natural habitats
  • Biogeographic factors affect species diversity
  • Richness and evenness are components of biodiversity


  • Case study of the captive breeding and reintroduction of an endangered animal species
  • Analysis of the impact of biogeographic factors on diversity limited to island size and edge effects


  • Analysis of the biodiversity of two local communities using Simpson’s reciprocal index of diversity