Simpson’s Diversity Index is a way to measure the diversity of species in a community.
To calculate this index for a given community, simply enter a list of observed frequencies for up to 10 species in the boxes below, then click the “Calculate” button:
| Species | Frequency |
|---|---|
| Species #1 | |
| Species #2 | |
| Species #3 | |
| Species #4 | |
| Species #5 | |
| Species #6 | |
| Species #7 | |
| Species #8 | |
| Species #9 | |
| Species #10 |
Simpson’s Diversity Index (D): 0.343
Dominance Index (1 – D): 0.657
Simpson’s Reciprocal Index (1 / D): 2.917
Hey there. My name is Zach Bobbitt. I have a Masters of Science degree in Applied Statistics and I’ve worked on machine learning algorithms for professional businesses in both healthcare and retail. I’m passionate about statistics, machine learning, and data visualization and I created Statology to be a resource for both students and teachers alike. My goal with this site is to help you learn statistics through using simple terms, plenty of real-world examples, and helpful illustrations.
Measuring plant species diversity