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TLS Online TPP Program

#Id: 2150

It is not surprising that size, shape, coloration, and many other traits undergo convergent evolution in diverse lineages

#Unit 9. Diversity of Life Forms #Concepts of species and hierarchical taxa #Part B Pointers
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TLS Online TPP Program

#Id: 5761

#Unit 10. Ecological Principles

Berger-Parker index- Dominance indices are weighted toward the abundance of the commonest or dominant species

DBP= Nmax/N
TLS Online TPP Program

#Id: 5762

#Unit 10. Ecological Principles

More diverse communities have a lower value of DBP than less-diverse communities.
TLS Online TPP Program

#Id: 5763

#Unit 10. Ecological Principles

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

DBPC=1 - DBP
TLS Online TPP Program

#Id: 5764

#Unit 10. Ecological Principles

Simpson’s diversity index DS and species diversity are negatively related.
TLS Online TPP Program

#Id: 5765

#Unit 10. Ecological Principles

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

DGS and species diversity are positive related
TLS Online TPP Program

#Id: 5766

#Unit 10. Ecological Principles

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