Rarefaction Curve Calculator
Calculate expected species richness for standardized sample sizes using rarefaction analysis.
Input Parameters
Hurlbert's Formula:
E(S) = Σ[1 - C(N-Ni,n)/C(N,n)]
Expected species at sample size n
Expected Species at n=100
14.50
95% CI: 11.64 - 17.36
Observed Species
17
Total Individuals
238
Completeness
85.3%
Standard Error
1.459
Rarefaction Curve Data
Sample Size (n)Expected Species
53.97
106.29
157.80
208.90
259.74
3010.42
3510.99
4011.47
4511.89
5012.26
5512.59
6012.88
6513.15
7013.39
7513.61
8013.82
8514.01
9014.18
9514.35
10014.50