Founder Effect Calculator

Calculate genetic diversity loss and allele frequency changes from founder events.

Population Parameters

Source Population Size

Number of Founders

Source Allele Frequencies (comma-separated)

Enter frequencies for each allele at a locus

Source Heterozygosity

Generations Since Foundation

Current Population

Mild Founder Effect

Founders

2.50%

Immediate Het Loss

Founder Heterozygosity

Immediately after founding

0.6338

Expected Alleles Retained

Of 4 original

3.52

Prob. Retain All Alleles

Sampling probability

53.45%

AlleleSource Freq95% CI in FoundersLoss Risk

A170.0%55.8-84.2%0.00%

A220.0%7.6-32.4%0.01%

A38.0%0.0-16.4%3.56%

A42.0%0.0-6.3%44.57%

Current Heterozygosity0.5806

Total Het Loss10.68%

Inbreeding Coefficient0.1068

Genetic Differentiation (Fst)0.0043

Long-term Ne57.3

Population Growth Rate1.380x per gen