Simpson’s Diversity Index is a way to measure the diversity of species in a community.
To calculate this index for a given community, simply enter a list of observed frequencies for up to 10 species in the boxes below, then click the “Calculate” button:
| Species | Frequency |
|---|---|
| Species #1 | |
| Species #2 | |
| Species #3 | |
| Species #4 | |
| Species #5 | |
| Species #6 | |
| Species #7 | |
| Species #8 | |
| Species #9 | |
| Species #10 |
Simpson’s Diversity Index (D): 0.343
Dominance Index (1 – D): 0.657
Simpson’s Reciprocal Index (1 / D): 2.917