Species Richness & Eveness (2.3.1)

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What is Simpson's Diversity Index?
A measure of the diversity of a habitat, taking into account the species richness and species eveness.
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What is the formula for diversity?
D=1-the sum of (n/N)^2
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What do 'n' and 'N' stand for in the diversity formula?
'n' is the number of individuals of a particular species. 'N' is the total number of all the individuals of all the species present.
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What does a high value for the diversity index suggest?
It suggests a diverse habitat that would support many different species and organisms. These habitats tend to be stable and can withstand environmental change.
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What does a low value for the diversity index suggest?
It suggests a habitat dominated by a few species. These habitats are less stable and less likely to withstand environmental change.
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Card 2

Front

What is the formula for diversity?

Back

D=1-the sum of (n/N)^2

Card 3

Front

What do 'n' and 'N' stand for in the diversity formula?

Back

Preview of the front of card 3

Card 4

Front

What does a high value for the diversity index suggest?

Back

Preview of the front of card 4

Card 5

Front

What does a low value for the diversity index suggest?

Back

Preview of the front of card 5

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