Kin Selection: Its Components
- 7 November 1980
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 210 (4470) , 665-667
- https://doi.org/10.1126/science.210.4470.665
Abstract
Change in gene frequency under kin selection is the sum of two components, namely, [See equation in the PDF file], a change in gene frequency caused by individual selection, and [See equation in the PDF file], a change caused by group selection. For the evolution of altruistic traits by kin selection, [See equation in the PDF file] is always negative—that is, individual selection operates against altruism—and [See equation in the PDF file] is always positive, so that selection between groups favors altruism. Hamilton's rule specifies the conditions under which [See equation in the PDF file]—that is, the conditions necessary for intergroup selection to override individual selection.Keywords
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