The estimation of reproductive values from pedigrees

Abstract Quantifying fitness is important to understand adaptive evolution. Reproductive values are useful for making comparisons involving different categories of individuals, like males and females. By definition, the reproductive value a category expected per capita contribution members that gene pool future generations. Life history theory reveals how can be determined via estimation life-history parameters, but this requires an adequate model intricate algebraic calculations. Recently, alternative pedigree-based method has become popular, which estimates genetic individuals generations by tracking their descendants down pedigree. This versatile intuitively appealing, it unknown if produces accurate precise. To investigate this, we implement various scenarios (for “true” calculated) in individual-based simulations, use simulation data estimate with pedigree method, compare results true target values. We show either biased (in short term) or imprecise long term). holds even simple life histories under idealized conditions. conclude not good substitute traditional quantify