Índice de Simpson
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Simpson
About this calculator
The Simpson's Diversity Index calculator is a useful tool for ecologists and researchers working with populations of organisms.
The Simpson's Index is a measure of diversity that takes into account the relative frequency of each species in a population. It is calculated using the formula D = 1 − Σ pᵢ², where pᵢ is the relative frequency of each species.
The Simpson's Index is especially useful when working with populations that have few species. Additionally, it is important to consider that the Simpson's Index does not take into account the spatial distribution of species, only their relative frequency.
It is essential to remember that the Simpson's Index is not an absolute measure of diversity, and that different populations can have the same Simpson's Index but have different characteristics. Additionally, it is essential to consider the precautions when using this measure, such as the choice of units and the consideration of interactions between species.
Frequently asked questions
What is the Simpson's Index?
The Simpson's Index is a measure of diversity that takes into account the relative frequency of each species in a population. It is calculated using the formula D = 1 − Σ pᵢ².
When to use the Simpson's Index?
The Simpson's Index is especially useful when working with populations that have few species. Additionally, it is essential to consider that the Simpson's Index does not take into account the spatial distribution of species, only their relative frequency.
What is the limitation of the Simpson's Index?
The main limitation of the Simpson's Index is that it does not take into account the spatial distribution of species, only their relative frequency.
What is considered a high or low value of the Simpson's Index?
A high value of the Simpson's Index indicates a high diversity of the population, while a low value indicates a low diversity.
What are the precautions when using the Simpson's Index?
The precautions when using the Simpson's Index include the choice of units and the consideration of interactions between species.