S-W diversity, abundance, dominance and evenness of lady bird beetle species sampled from Ranchi, Jharkhand

Neetu Kumari^a, Anjana Verma^b & M.Prasad^a
aDepartment of Zoology,Ranchi University, Ranchi
^bDepartment of Zoology, Yogoda Satsang Mahavidyalaya, Ranchi, Jharkhand, India
Received 10th June,2011.; Revised 15th August,2011.

Abstract : There is a gradient in species richness and abundance with the highest in the tropics and lowest in the polar areas. Use of various cardinal information statistic indices like S-W alpha diversity, abundance, evenness, similarity index and dominance for quantifying the species diversity both within and between the habitats carries significant value to depict the survival status of a particular species in a community. Lady bird beetles population expected to be well diversified in terms of species richness and abundance has been sampled from different zones of Ranchi. The results of application of these information statistics indices for different lady bird beetle species sampled have been discussed in this paper which can explain the causes of the species diversity these predetory beetles in this area in relation to other biotic and abiotic factors.

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