B cells migrate to the lymphoid follicles. They are directed there by chemokine interactions between CXCL13, which is secreted by follicular dendritic cells (FDCs).

TLS Online TPP Program

#Id: 1873

#Unit 10. Ecological Principles

α12<1 Individuals of species 2 have less inhibitory effect on individuals of species 1 than individuals of species 1 have on others of their own species.

TLS Online TPP Program

#Id: 1874

#Unit 10. Ecological Principles

α12>1 Species 2 have a greater inhibitory effect on individuals of species 1 than do the species 1 individuals themselves.

TLS Online TPP Program

#Id: 1875

#Unit 10. Ecological Principles

K1<K2/β  and K1/α<K2 - Species 1 goes extinct

TLS Online TPP Program

#Id: 1876

#Unit 10. Ecological Principles

K1>K2/β  and K1/α>K2- Species 2 goes extinct

TLS Online TPP Program

#Id: 1877

#Unit 10. Ecological Principles

K1>K2/β  and K1/α<K2- Either species 1 or species 2 goes extinct, depending on the initial densities.

TLS Online TPP Program

#Id: 1878

#Unit 10. Ecological Principles

K1<K2/β  and K1/α>K2- The two species coexist.