Rarefaction Curve Calculator

Calculate expected species richness for standardized sample sizes using rarefaction analysis.

Input Parameters

Species Abundances (comma-separated)

Target Sample Size

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

Total Individuals

238

Completeness

85.3%

Standard Error

1.459

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

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