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Levels of Biodiversity

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Genetic diversity - definition

  • Genetic diversity within a population refers to the number of different alleles (the alternate forms of genes) of all genes and the frequency with which they appear.

Species diversity - definition

  • Species diversity refers to the variety of species within a region.

Ecological diversity - definition

  • Ecosystem diversity refers to the variety of ecosystems in a given place.

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PopulationSpecies GroupIndividuals
Population  A               IMammals 3
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Population  B     IMammals 2
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    IIIAmphibians 1
Population  C     IMammals 3
    IIMammals 2
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