Shannon Wiener index

Indices based on the diversity values are very common. One of the most often used is the Shannon-Wiener index, developed by C. E. Shannon and W. Wiener. This index originates in information theory and assumes that individuals are sampled at random out of a community which is indefinitely large, and that all the species are represented in the sample.

The Shannon-Wiener index is calculated by the following equation:

In this equation, pi is the proportion of individuals found in species i. The values of this index can vary between 0 and 5. H' reaches a maximum value if the individuals of all species occur with the same density. Other indices based on the diversity value are for example the Pielou Evenness index, the Brilloun index, the Margalef index, the Berger-Parker index, the Simpson index, and ^-dominance curves.

Was this article helpful?

0 0
Project Earth Conservation

Project Earth Conservation

Get All The Support And Guidance You Need To Be A Success At Helping Save The Earth. This Book Is One Of The Most Valuable Resources In The World When It Comes To How To Recycle to Create a Better Future for Our Children.

Get My Free Ebook


Post a comment