Statistics Manual
Link to the statistical manual "Do these numbers mean anything? A beginner's guide to interpreting biological and ecological data"

Chi-Square Calculator
An excel spreadsheet that will compare observed and expected values for up to 20 categories. Though setup for comparing plant communities, the calculator can be used for other types of data. You can also see and adjust a corresponding relative abundance graph.

Shannon Index Calculator
An excel spreadsheet that will calculate the Shannon Diversity Index for communities of up to 30 species. You can also see and adjust a corresponding relative abundance graph.

This site created and maintained by
Dr. Rhine Singleton
Associate Professor of Biology & Environmental Science
Franklin Pierce University, Rindge, NH 03461
You can contact me at: singler at franklinpierce dot edu