The process of selection, either natural or artificial, comes into the prediction through S, the selection differential, which is a measure of association between trait values and fitness ...

Haldane, J. B. S. A mathematical theory of natural and artificial selection, Part I. Transactions of the Cambridge Philosophical Society 23, 19–41 (1924). Hedrick, P. W. Genetics of Populations ...

Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which ...