| 单词 | reflexive selection |
| 释义 | > as lemmasreflexive selection reflexive selection n. Biology (a) natural selection which acts on those characteristics of an organism relating to its interactions with others of the same species (now disused); (b) natural selection which acts to maintain variation (polymorphism) in a population, in cases where the variability itself is thought to be the adaptive feature. ΚΠ 1888 Linn. Soc. Jrnl. 20 200/2 Reflexive Selection is the exclusive generation of those better fitted to the relations in which the members of the same species stand to each other. 1908 Amer. Naturalist 42 57 Isolated groups of individuals of the same variety..may still..adopt different methods of dealing with the external environment, or introduce divergent forms of sexual or social selection, or of some other form of reflexive selection. 1962 Science 20 Apr. 263/1 The term reflexive selection suggests itself because it is the variation per se which is adaptive, and the frequency of any one type is determined by a feedback relationship with all the other types. 1988 Oikos 55 130 Some populations may contain many rare phenotypes (maintained by reflexive selection) and some more frequent phenotypes (maintained by apostatic selection). < as lemmas |
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