The Shannon index of species diversity is calculated using this equation: Habitat A has a total of 100 birds, with the following numbers of individuals per species: 20, 25, 20, 15, and 20.Habitat B also has 100 birds, with the following numbers of individuals per species: 80, 5, 5, 5, and 5.What is the Shannon index for habitat B?
A) 0
B) 1.60
C) 0.78
D)-0.78
E) 0.32

Question

The Shannon index of species diversity is calculated using this equation:  Habitat A has a total of 100 birds, with the following numbers of individuals per species: 20, 25, 20, 15, and 20.Habitat B also has 100 birds, with the following numbers of individuals per species: 80, 5, 5, 5, and 5.What is the Shannon index for habitat B?
A) 0 
B) 1.60 
C) 0.78 
D)-0.78 
E) 0.32

Quizplus · Accepted Answer

For habitat B, 
- Species 1: Relative abundance = 0.8
- Species 2-5: Relative abundance = 0.05 (each)

Therefore, applying the Shannon diversity index equation:

-(-0.8*log2(0.8) - 4*0.05*log2(0.05)) = 0.78

Thus, the Shannon index for habitat B is 0.78.

The Shannon Index of Species Diversity Is Calculated Using This