What is altruism?

Altruism is generally understood to be behavior that benefits others at a personal cost to the behaving individual. However, within evolutionary biology, different authors have interpreted the concept of altruism differently, leading to dissimilar predictions about the evolution of altruistic behavior. Generally, different interpretations diverge on which party receives the benefit from altruism and on how the cost of altruism is assessed. Using a simple trait-group framework, we delineate the assumptions underlying different interpretations and show how they relate to one another. We feel that a thorough examination of the connections between interpretations not only reveals why different authors have arrived at disparate conclusions about altruism, but also illuminates the conditions that are likely to favor the evolution of altruism.

[1]  L. Keller.  Social evolution in ants , 1996 .

[2]  C. Matessi,et al.  On the evolution of altruism by kin selection. , 1984, Proceedings of the National Academy of Sciences of the United States of America.

[3]  J. H. Davis,et al.  Progress in applied social psychology , 1981 .

[4]  Lee Alan Dugatkin,et al.  Behavioral Ecology and Levels of Selection: Dissolving the Group Selection Controversy , 1994 .

[5]  I. Mysterud.  Unto others: The evolution and psychology of unselfish behavior , 1999 .

[6]  I. Eshel,et al.  On the founder effect and the evolution of altruistic traits. , 1976, Theoretical population biology.

[7]  David Sloan Wilson,et al.  The Natural Selection Of Populations And Communities , 1981 .

[8]  W. E. Ritter.  AS TO THE CAUSES OF EVOLUTION. , 1923, Science.

[9]  M W Feldman,et al.  Theories of kin and group selection: a population genetics perspective. , 1980, Theoretical population biology.

[10]  David Sloan Wilson,et al.  Weak Altruism, Strong Group Selection , 1990 .

[11]  John Dupré,et al.  The Latest on the best : essays on evolution and optimality , 1987 .

[12]  K. Nyborg,et al.  On social norms: the evolution of considerate smoking behavior , 2003 .

[13]  S. Karlin,et al.  The eleventh R. A. Fisher Memorial Lecture - Kin selection and altruism , 1983, Proceedings of the Royal Society of London. Series B. Biological Sciences.

[14]  Mari Rege,et al.  Does Public Policy Crowd Out Private Contributions to Public Goods? , 2001 .

[15]  J. M. Smith.  Group Selection and Kin Selection , 1964, Nature.

[16]  G. Price,et al.  Extension of covariance selection mathematics , 1972, Annals of human genetics.

[17]  M. Feldman,et al.  Darwinian selection and "altruism". , 1978, Theoretical population biology.

[18]  Benjamin Kerr,et al.  Individualist and Multi-level Perspectives on Selection in Structured Populations , 2002 .

[19]  L. Nunney,et al.  Group Selection, Altruism, and Structured-Deme Models , 1985, The American Naturalist.

[20]  S. Jayakar,et al.  Conditions for the evolution of altruism under Darwinian selection. , 1976, Theoretical population biology.

[21]  C. Boehm,et al.  Unto Others: The Evolution and Psychology of Unselfish Behavior , 1999 .

[22]  D. Wilson.  Structured Demes and the Evolution of Group-Advantageous Traits , 1977, The American Naturalist.

[23]  A. Grafen.  Natural selection, kin selection and group selection [Polistes fuscatus, wasps] , 1984 .

[24]  W. Hamilton,et al.  The Evolution of Cooperation , 1984 .

[25]  Evelyn Fox Keller,et al.  Keywords in evolutionary biology , 1994 .

[26]  Elliott Sober,et al.  The Nature of Selection: Evolutionary Theory in Philosophical Focus , 1986 .

[27]  C. Hauert,et al.  Volunteering as Red Queen Mechanism for Cooperation in Public Goods Games , 2002, Science.

[28]  D. Wilson.  THE GROUP SELECTION CONTROVERSY: History and Current Status , 1983 .

[29]  D. Wilson.  A theory of group selection. , 1975, Proceedings of the National Academy of Sciences of the United States of America.

[30]  W. Hamilton.  Innate social aptitudes of man: an approach from evolutionary genetics , 1975 .