Cause that reduces reproductive success in a proportion of a population
Also known as selection pressure
3 statements · 33% with external sources · numbers in brackets are citations
2 identifiers linking evolutionary pressure across the web's reference databases
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Evolutionary pressure, selective pressure or selection pressure is any influence exerted on organisms by environmental factors that increase or decrease the reproductive success among portions of their population, thus driving various species' natural selection and evolution. It is a quantitative description of the amount of change occurring in processes investigated by evolutionary biology, but the formal concept is often extended to other areas of research.