PRACTICAL

SPECIES DIVERSITYSPECIES RICHNESSSPECIES EVENNESSSIMILIARITY & DISSIMILIARITY INDEXPRACTICAL

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

SPECIES DIVERSITY

Shanon Weiner Indexor

Species Richness

Where S = Number of species present in communityN = Number of Individuals in community

Species richness of Wetland 1

Species richness of Wetland 2

Species Evenness

Where C = Species Evenness = Shanon Weiner IndexS = Number of species

SIMILARITY & DISSIMILARITY INDEX

SIMILARITY INDEXWhereS = Similarity IndexC = Common species to both samplesA = Number of species in sample AB = Number of species in sample B

DISSIMILARITY INDEXDissimilarity Index = 1 - S

SOLUTIONWe have found thatNumber of species in Habitat A = 5Number of species in Habitat B = 6Common species to A and B = 3

CALCULATIONSIMILARITY INDEX

DISSIMILARITY INDEXDissimilarity Index = 1 - S = 1 0.545 = 0.455