Biodiversity index,
[tex]BI=\frac{#species}{#individuals}[/tex]
we have that the total number of species is, 6
and the total number of individuals in the area is,
[tex]9+43+17+2+3+2=76[/tex]
Thus, the Biodiversity index is,
[tex]BI=\frac{6}{76}\cong0.078947[/tex]
