Quadrat Calculator

Analyze quadrat sampling data to estimate density, dispersion patterns, and population size.

Quadrat Data

Quadrat Size

Size Unit

Counts per Quadrat (comma-separated)

Presence/Absence (1/0, comma-separated)

Total Study Area (m²)

VMR (s²/x̄):
<1: Regular | ≈1: Random | >1: Clumped
Morisita: <1: Uniform | =1: Random | >1: Clumped

Distribution Pattern

Regular/Uniform

VMR = 0.672

Mean per Quadrat

5.67

Variance

3.810

Density

56666.67

Frequency

73.3%

Estimate5667

95% CI4679 - 6654

Sampling Intensity1.50%

Morisita Index0.945

Chi-square9.41 (df=14)

Quadrats Sampled15

Recommended N (±10%)46 quadrats