Evenness Calculator
Calculate multiple evenness indices to measure how equally individuals are distributed among species.
Input Parameters
Pielou's J: H' / ln(S)
Simpson's E: (1/D) / S
Heip's E: (e^H' - 1) / (S - 1)
Evenness ranges from 0 to 1, where 1 indicates perfectly equal abundance across all species.
Pielou's Evenness (J)
0.9274
Very Even Distribution
Simpson's Evenness
0.7536
Heip's Evenness
0.8290
Smith-Wilson Evar
0.7259
Bulla's O
0.7500
Community Statistics
Species Count (S)10
Total Individuals (N)200
Mean Abundance20.00
Shannon H'2.1355
Camargo Evenness0.6760