Simpson Diversity Index Calculator
The Simpson Diversity Index Calculator computes Simpson's dominance (D) and the widely used Gini-Simpson diversity index (1 - D) using the standard finite-sample formula from ecology. It quantifies evenness and dominance reliably for biodiversity assessment.
About the Tool
Input abundances to instantly get D, 1-D, richness, and interpretation. Ideal for agriculture, ecology, and soil/plant studies.
Importance of the Simpson Index
Highlights dominance/evenness in communities—key for resilient agroecosystems, pest control, and sustainable farming practices.
User Guidelines
- Enter comma-separated counts or name:count format.
- Example: 450,120,80,30 or Rice:450, Wheat:120
- Click Calculate for results.
- Higher 1-D = greater diversity/evenness (0–1).
When and Why to Use It
Use for comparing systems or evaluating impacts. Why? Standard, interpretable metric focused on evenness and dominance.
Purpose
To democratize Simpson index calculations for better biodiversity insights in agriculture. Featured by Agri Care Hub. Details at Simpson Diversity Index Calculator on Wikipedia.
Supports monitoring of balanced communities essential for sustainable delta agriculture.
Species Richness (S):
Simpson's Dominance (D):
Gini-Simpson Diversity Index (1-D):