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One who believes that evolution occurs chiefly as a result of natural selection.

se·lec′tion·ism n.
se·lec′tion·ist adj.


(Philosophy) a person who believes in natural selection
(Biology) of or relating to the belief in natural selection
References in periodicals archive ?
2002) utilize the instructionism, learning, and selectionism approaches.
That is not a tenable position, but neither is extreme selectionism.
In the opening pages of his book, Bowler defends the idea that a counterfactual history can shed light on the contributions of a historical figure and rejects the view that Darwin's theory of selectionism was "in the air" and would have emerged regardless.
I believe that only naive group selectionism that does not tackle the free-rider problem is incompatible with methodological individualism, but limited space does not allow me to discuss this issue here.
The conceptual struggles generated by selectionism may be avoided by investigating cultural phenomena using the conceptual repertoire of a functional analysis of behavior.
What I have called reductionism and nihilism might also be termed gene selectionism and contingent evolution.
Although Darwin initially believed that minute, random, inborn changes could supply much of the variation needed for selectionism to operate, even he retreated from this view.
Steels proposes concrete operationalizations of abstract mechanisms (usually inspired by biological systems) such as self-organization, selectionism, co-evolution through structural coupling, reinforcement learning, and level formation.
Moreover, for them, the crucifixion of Jesus Christ is held as the ultimate sacrifice against such eliminatory Selectionism, and many Christians attempt to imitate the Anti-Selectionist standpoint in terms of behavior and action that He emphasized.