TLS Online TPP Program

#Id: 5757

#Unit 10. Ecological Principles

Gleason’s individualistic model- Competition does not cause sharp boundaries; different species do not group together due to physical variables.

TLS Online TPP Program

#Id: 5758

#Unit 10. Ecological Principles

Principle of species individuality

TLS Online TPP Program

#Id: 5759

#Unit 10. Ecological Principles

Species richness- which is a count of the number of species.

TLS Online TPP Program

#Id: 5760

#Unit 10. Ecological Principles

One major problem is that this approach does not take species frequency of occurrence or relative abundance into account.

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

D_BP= N_max/N

TLS Online TPP Program

#Id: 5762

#Unit 10. Ecological Principles

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