A form of natural selection in which extreme values for a trait are favored over intermediate values, causing subpopulations of a single species within the same habitat to develop different adaptations.

plural of Selection Monday

plural of Selection Sunday

plural of sexual selection

Synonym of Fisherian runaway

(religion) A process by which heritable traits are given or planned by a higher power, as distinguished from natural selection.

(evolutionary theory, rare, sometimes humorous or derogatory) The selection of certain genes caused by the actions of humans, especially the intentional intervention in the breeding of plants or animals in order to preserve selected genetic traits; eugenics, selective breeding or culling.

(immunology) The process by which a specific antigen only activates its counter-specific lymphocyte, usually a B cell, so that particular cell is induced to produce many clones of itself for antibody production.

(ecology) A theory involving natural selection based on quantity.

(ecology) A theory involving natural selection based on quality.