Species:
| Species | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Sigma |
|---|---|---|---|---|---|---|---|---|---|---|---|
Next calculate the population density.
| 10 quadrants, each .25 meters2 |
= | 2.5 meters2 |
| density | = | no. individuals total area |
The relative density can now be determined for each of the species in the sample.
| Relative Density of a Species | = | density of a species total densities of all species |
x 100 |
Next, determine the frequency of the species.
| Frequency | = | of a species sampled total number of quadrants sampled |
And then the relative frequency .
| Relative Frequency | = | frequency of a species frequencies of all species |
x 100 |
And the Relative Importance.
| Importance Value | = | relative density + relative frequency |
Determine the Diversity.
| Diversity | = | N2 1(n1 + n2 + nj)2 |
OR | Diversity | = | N (N-1) n (n-1) |
| Where | :N = number of different organism n1 = sum of individuals in species 1 n2 = sum of individuals in species 2 nj = sum of individual in species j j = number of species present |
Then finally, complete the data table to allow comparison of values for each organism.
| Species | Density | Relat. Density | Frequency | Relat. Frequency | Import. Value |
|---|---|---|---|---|---|