The Allee effect is a phenomenon in biology named after W. C. Allee, who first wrote extensively on it. It describes a positive relation between population density and the reproduction and survival of individuals.

References

• "Underpopulation (Allee) effects." Alan A. Berryman, Principles of Population Dynamics. Accessed on February 4, 2005.

Further reading

• Animal Aggregations. A study in General Sociology., W. C. Allee, University of Chicago Press