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

• "What is the Allee Effect? (http://evolve.zoo.ox.ac.uk/publications.html?id=185)." Stephens PA, Sutherland WJ & Freckleton RP (1999) Oikos 87, 185-190.. Accessed on February 4, 2005.
• "Underpopulation (Allee) effects (http://classes.entom.wsu.edu/529/Allee.htm)." 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