Biodiversity: Key Points for Exam Questions

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Biodiversity

Key Points for Exam Questions:

  • The calculation -
    • D = N(N-1) / sum of n(n-1)
    • D = index of diversity
    • N = the total number of organisms of all species
    • n = number of organisms in one species
    • lowest possible value for D is 1
    • the larger the value of D, the greater the diversity
  • Define species richness and species abundance -
    • species richness is defined as the number of different species
    • species abundance is defined as the population size

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