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Bioinformation. 2009; 3(7): 296–298.
Published online 2009 February 27.
PMCID: PMC2655047

RICHEST ‐ a web server for richness estimation in biological data


Richness is defined as the number of distinct species or classes in a sample or population. Although richness estimation is an important practice, it requires mathematical and computational methods that are challenging to understand and implement. We have developed a web server, RICHness ESTimator (RICHEST), which implements three non-parametric statistical methods for richness estimation. Its user-friendly web interface allows users to analyze and compare their data conveniently over the web.


A web server hosting RICHEST is accessible at and the software is freely available for local installations.

Keywords: diversity estimation, biological data, complex, simple, population

Articles from Bioinformation are provided here courtesy of Biomedical Informatics Publishing Group