The formula to calculate the Berger-Parker Index (BPI) is:
\[ \text{BPI} = \frac{\text{Nm}}{\text{n}} \]
Where:
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.
Let's assume the following values:
Using the formula:
\[ \text{BPI} = \frac{50}{200} = 0.25 \]
The Berger-Parker Index (BPI) is 0.25.