The Maryland Sea Grant Bookstore will be closed from December 10th to January 3rd
In this activity, you will calculate measures of biodiversity, as discussed on the How To Calculate Biodiversity page. The data comes from one of the many datasets gathered during our study of biofilm formation in Baltimore's Inner Harbor.
Before you get started, here is a quick review of the biodiversity formulas:
For more about each of these formulas, visit the How to Calculate Biodiversity page.
Using the species counts, fill out the following tables to calculate the species richness and the three biodiversity indices develop by Simpson.
After you enter your answer(s) for each step, press the "Check Answer: button. You can use the "Clear Answer" button to clear the answer(s) for any part of this activity.
Fill in the box with your answer and press the "check answer" button.
Species Name | # Found | Pi | Pi2 | Measure | Value | |
Whip Mud Worm | 8 | 0.186 | 0.035 | S | 3 | |
Mussels | 20 | 0.465 | 0.216 | D | 0.373 | |
Barnacles | 15 | 0.349 | 0.122 | 1-D | 0.627 | |
Totals | 43 | 1.000 | 0.373 | 1/D | 2.681 |