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Reading: Portfolio function of lady bird beetles (Coccinellids) in the agro forestry ecosystem of Kanke block, Ranchi district (Jharkhand), India

Portfolio function of lady bird beetles (Coccinellids) in the agro forestry ecosystem of Kanke block, Ranchi district (Jharkhand), India

mset-bospectra By mset-bospectra
2 Min Read

Neetu Kumari*
P.G. Department of Zoology, Ranchi University, Ranchi, Jharkhand, India
Received : 25th April, 2020 ; Revised : 27th July, 2020

Abstract- Portfolio function of any biotic population in an ecosystem has multidimensional control & it is primarily engineered by S-W diversity index of the species. S-W diversity index is popular statistical information index as quantitative tool to assess the species abundance, richness & bifold product value of group of species dwelling together in a habitat that yields significant result for understanding their asset & liability value in the portfolio of biotic community. It further helps in contemplating the strategies for the management & development of sustainable environment & ecosystem. Beetles sampled from the forest, agricultural areas & grasslands of Kanke block in Ranchi of Jharkhand were taxonomically identified as Coccinella septempunctata L., Brumus suturalis, Adalia decempunctata Linn., Cycloneda sanguinea, Cryptocephalus triangularis, Hope & Hippodamia parenthesis. When the data were subjected to S-W diversity index tool, the value of H (H= -Σpi*log pi) for all the species of beetles was found to be 0.7691, 0.7625 & 0.7616 and PF (Portfolio Index) as 104.0, 19.67 & 78.7 which indicates that they have profitable asset investment in the community. as per portfolio function laws.

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