Definition of selection pressure in English:

selection pressure

noun

Biology
  • An agent of differential mortality or fertility that tends to make a population change genetically.

    • ‘Obviously, the higher their metabolism the greater the selection pressure they would have exerted on the contemporary vegetation.’
    • ‘Such selection pressure may have different origins.’
    • ‘In selection schemes improvements can be larger, but it depends on the structure of the population, the selection pressure, and the restriction on inbreeding imposed.’
    • ‘Therefore, the putative selection pressure for metabolic efficiency does not change the rate of nonsynonymous substitutions.’
    • ‘What happens is, in theory, unless you apply a selection pressure onto a population it stays the same.’