In the Shannon index, the mathematical calculation of species diversity, H, incorporates measurements of
A) species richness only, measured as proportion of total number.
B) species richness only, measured as number of species.
C) species evenness only, measured as proportion of total number.
D) species evenness only, measured as number of species.
E) species richness measured as number of species, and evenness measured as proportion of total number.

Question

Quizplus · Accepted Answer

The Shannon index H takes into account both species richness and evenness. Species richness is measured as the number of different species present, while evenness refers to how evenly each species is represented. Evenness can be measured as the proportion of individuals in each species relative to the total number of individuals. Therefore, choice E is the best answer.

In the Shannon Index, the Mathematical Calculation of Species Diversity