Sections of DNA that are conserved among species can be identified by performing a zoo blot. We use short fragments from the region as labeled probes to test for homologous DNA from a variety of species by Southern blotting.

TLS Online TPP Program

#Id: 3725

#Unit 10. Ecological Principles

Berger-Parker index - Dominance indices are weighted toward the abundance of the commonest or dominant species
D_BP = N_max /N

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#Id: 3726

#Unit 10. Ecological Principles

More diverse communities have a lower value of D BP than less-diverse communities.

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#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

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#Id: 3728

#Unit 10. Ecological Principles

Simpson’s diversity index

DS and species diversity are negatively related.

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#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.