Berger-Parker Index Calculator

Calculate Berger-Parker Index



Formula

The formula to calculate the Berger-Parker Index (BPI) is:

\[ \text{BPI} = \frac{\text{Nm}}{\text{n}} \]

Where:

What is the Berger-Parker Index?

The Berger-Parker Index is a measure of dominance in a community. It is calculated by dividing the number of individuals in the most abundant species by the total number of individuals in the sample. A higher Berger-Parker Index indicates greater dominance by a single species, while a lower index suggests a more even distribution of individuals among species.

Example Calculation

Let's assume the following values:

Using the formula:

\[ \text{BPI} = \frac{50}{200} = 0.25 \]

The Berger-Parker Index (BPI) is 0.25.