Online Ecology Biodiversity Index Calculator
Calculate Simpson and Shannon-Wiener indices for your ecosystem data.
1. Enter Species Data
| Species Name (Optional) | Number of Individuals |
|---|
2. Results
Results will appear here after calculation.
Simpson Index (D)
0.00
Measures the probability that two randomly selected individuals will be of the same species. Ranges from 0 (infinite diversity) to 1 (no diversity).
Simpson's Index of Diversity (1-D)
0.00
Measures the probability that two randomly selected individuals will be of different species. Ranges from 0 (no diversity) to 1 (infinite diversity).
Shannon-Wiener Index (H)
0.00
Accounts for both species abundance and evenness. Higher values indicate greater diversity. Typically ranges from 1.5 to 3.5 in most ecosystems.
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