In desert river systems across the Southwestern states, dense stands of invasive tamarisk are displacing native tree species. These stands are often referred to as monocultures because tamarisk has become the numerically dominant species in these communities. Assuming that species richness (the number of species) is equal, use the following to calculate the Shannon- Weaver Index for each community. Native Dominated:
Species 1 Species 2 Species 3
P, 0.3 0.4 0.3
PilnP -0.36 -0.37 -0.36
Tamarisk Dominated:
Species 1 Species 2 Species 3
P, 0.8 0.1 0.1
PilnP -0.18 -0.23 -0.23
Question: Calculate the Shannon-Weaver Index, H, for the Native Dominated community.
a. 0.64
b. 1.37
c. 1.09
d. 1.64