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Among the mathematical indices for measuring bio - diversity, which one shows the mean species diversity in a habitat at a local scale?
1. Alpha index
2. Beta index
3. Gamma index
4. None of these

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Correct Answer - Option 1 : Alpha index

The correct answer is the Alpha index.

  • Alpha index biodiversity shows the mean species diversity in a habitat at a local scale.

  • Alpha diversity
    • It belongs to the diversity within a particular area or ecosystem.
    • It is expressed by the number of species in that ecosystem.

  • Beta diversity
    • It is a comparison of diversity between ecosystems.
    • It measured as the change in the number of species between the ecosystems.
  • Gamma diversity
    • It is a measure of the overall diversity for the different ecosystems within a region.
  • Genetic diversity
    • Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species.

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