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9 mar 2020 · The Price equation, therefore, measures the effect of natural selection on every gene frequency, and on the breeding value of any trait, while the fundamental theorem measures natural selection in its totality as the additive genetic variance in relative fitness.
In the theory of evolution and natural selection, the Price equation (also known as Price's equation or Price's theorem) describes how a trait or allele changes in frequency over time. The equation uses a covariance between a trait and fitness, to give a mathematical description of evolution and natural selection.
11 mar 2008 · The Price equation is a simple mathematical statement about change. In its usual formulation, it describes how the average value of any character — body weight, antler size, proclivity to altruism — changes in a biological population from one generation to the next.
Due to population geneticist George Price in 1970, this equation expresses the between-generation change in a trait mean value in the following way : $$ \Delta {\text{z}} = {\text{Cov}}{{{\left( {{{\text{w}}_{\text{i}}},{{\text{z}}_{\text{i}}}} \right)}} \left/ {\text{w}} \right.} + {\text{E }}{{{\left( {{{\text{w}}_{\text{i}}} \Delta {{\text{z ...
9 mar 2020 · The Price equation has found widespread application in many areas of evolutionary biology, including the evolutionary epidemiology of infectious diseases. In this paper, we illustrate the utility of this approach to modelling disease evolution by first deriving a version of Price’s equation that can be applied in continuous time and to ...
9 mar 2020 · The Price equation is a statistical summary of evolutionary change, and it is widely acknowledged that statistical relations do not necessarily imply or directly map onto causal relations. So, caution is required when making claims about causality based solely on the Price equation.
Price equation is, how we should think about it, and its value and limitations in reasoning about evolution. Subsequent articles will show the Price equation in action, applied to kin selection, causal analysis in evolu-tionary models and an information perspective of natural selection and Fisher’s fundamental theorem. Overview
