What is the advantage of the Simpson's Diversity Index over a simple census of the number of species in quantifying the diversity of an ecosystem?

What will be an ideal response?


The Simpson's Diversity Index measures the likelihood that two individuals drawn from the same community will be of different species. This likelihood is expressed quantitatively as follows:
Simpson's diversity =1 - [(proportion of species A)2 -(proportion of species B)2 _ . . . .].

Advantage: To capture the importance of heterogeneity, measures of diversity other than simply the number of species have been proposed.

Environmental & Atmospheric Sciences

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