A step by step method for calculation of species diversity, species richness, species evenness and similarity and dissimilarity indices

1. SPECIES DIVERSITY
SPECIES RICHNESS
SPECIES EVENNESS
SIMILIARITY & DISSIMILIARITY INDEX
PRACTICAL

2. Q. Calculate the species diversity, species richness and species evenness of the birds of
the following two wetlands

3. SPECIES DIVERSITY
Shanon Weiner Index
or

16. Species Richness
Where
S = Number of species present in community
N = Number of Individuals in community
Species richness of Wetland 1
Species richness of Wetland 2

17. Species Evenness
Where
C = Species Evenness
Ḧ = Shanon Weiner Index
S = Number of species

18. SIMILARITY & DISSIMILARITY
INDEX
SIMILARITY INDEX
Where
S = Similarity Index
C = Common species to both samples
A = Number of species in sample A
B = Number of species in sample B
DISSIMILARITY
INDEX
Dissimilarity Index = 1 - S

19. SOLUTION
We have found that
Number of species in Habitat A = 5
Number of species in Habitat B = 6
Common species to A and B = 3

20. CALCULATION
SIMILARITY INDEX
DISSIMILARITY
INDEX
Dissimilarity Index = 1 - S = 1 – 0.545 = 0.455