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Interdemic
Interdemic Selection: Also called group selection, interdemic selection occurs when the population or group continues to exist based (largely) on the size of the group or "phenotypic characteristic" (Futuyma, 2009). The process of interdemic selection occurs in addition to the act of individual selection among populations (Ibid). This type of natural selection affects the species within any given population and occurs when the creatures die or grow as a whole depending on whether they've inherited harmful or beneficial traits (BioTech
Daniel Garcia Rivero

Daniel Garcia Rivero

, 1997). This process is thought to be an important force in nature (de Queiroz, 1998). 

Sources:

BioTech (1997). BioTech: Dictionary Search Results. Retrieved 2013, from http://life.nthu.edu.tw/~g864204/dict-search4.htm

de Queiroz, A. (1998). Adaptation. Systematic Biology, 47(3), 538-541. Retrieved from http://search.proquest.com/docview/194782100?accountid=40659

Futuyma, F.J. 2009. Evolution. 2nd Ed. Chapter 11. Retrieved from http://ncse.com/files/pub/evolution/Evolution--Futuyma--chap11.pdf

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