IFN-ϒ acts directly by inducing an antiviral state in nearby cells.

IL-2 acts indirectly by assisting the development of cytotoxic T lymphocyte(CTL) precursors into an effector population.

Both IL-2 and IFN-ϒ activate NK cells.

TLS Online TPP Program

#Id: 3727

#Unit 10. Ecological Principles

Berger-Parker complement index is that it is very easy to compute. Values of D_BPC vary from 0 to 1.
D_BPC =1 - D_BP

TLS Online TPP Program

#Id: 3728

#Unit 10. Ecological Principles

Simpson’s diversity index

DS and species diversity are negatively related.

TLS Online TPP Program

#Id: 3729

#Unit 10. Ecological Principles

Gini Simpson index of diversity (DGS) = 1 − DS.

DGS and species diversity are positive related

TLS Online TPP Program

#Id: 3730

#Unit 10. Ecological Principles

The Shannon index
Direct related with Diversity and increases with addition of species and even distribution of species.

TLS Online TPP Program

#Id: 3731

#Unit 10. Ecological Principles

Brillouin index discriminates between these two communities with same richness and evenness and the Shannon index does not.

TLS Online TPP Program

#Id: 3732

#Unit 10. Ecological Principles