P-values to determine whether natural selection operates in nature: seizing their potential

After 34 years of the development of Lande and Arnold’s (1983) model to quantify natural selection on multivariate quantitative phenotypic traits, researchers still heavily rely on p-values to determine whether natural selection operates or not on biological populations. I discuss some issues that...

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Main Author: Facundo X. Palacio
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México 2018-03-01
Series:Revista Mexicana de Biodiversidad
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Online Access:https://revista.ib.unam.mx/index.php/bio/article/view/2188
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author Facundo X. Palacio
author_facet Facundo X. Palacio
author_sort Facundo X. Palacio
collection DOAJ
description After 34 years of the development of Lande and Arnold’s (1983) model to quantify natural selection on multivariate quantitative phenotypic traits, researchers still heavily rely on p-values to determine whether natural selection operates or not on biological populations. I discuss some issues that may arise from using individual p-values obtained from selection gradients, instead of computing a single p-value to address an overall pattern of selection. Selection gradients, standard errors and an overall measure of these effect sizes should be reported when quantifying the regime and strength of natural selection.
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publisher Universidad Nacional Autónoma de México
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spelling doaj-art-7758ece78e374911b14fd7796cb276832025-08-20T01:49:26ZengUniversidad Nacional Autónoma de MéxicoRevista Mexicana de Biodiversidad1870-34532007-87062018-03-0189110.22201/ib.20078706e.2018.1.2188P-values to determine whether natural selection operates in nature: seizing their potentialFacundo X. Palacio After 34 years of the development of Lande and Arnold’s (1983) model to quantify natural selection on multivariate quantitative phenotypic traits, researchers still heavily rely on p-values to determine whether natural selection operates or not on biological populations. I discuss some issues that may arise from using individual p-values obtained from selection gradients, instead of computing a single p-value to address an overall pattern of selection. Selection gradients, standard errors and an overall measure of these effect sizes should be reported when quantifying the regime and strength of natural selection. https://revista.ib.unam.mx/index.php/bio/article/view/2188Phenotypic selectionSelection gradientsStatistical significance
spellingShingle Facundo X. Palacio
P-values to determine whether natural selection operates in nature: seizing their potential
Revista Mexicana de Biodiversidad
Phenotypic selection
Selection gradients
Statistical significance
title P-values to determine whether natural selection operates in nature: seizing their potential
title_full P-values to determine whether natural selection operates in nature: seizing their potential
title_fullStr P-values to determine whether natural selection operates in nature: seizing their potential
title_full_unstemmed P-values to determine whether natural selection operates in nature: seizing their potential
title_short P-values to determine whether natural selection operates in nature: seizing their potential
title_sort p values to determine whether natural selection operates in nature seizing their potential
topic Phenotypic selection
Selection gradients
Statistical significance
url https://revista.ib.unam.mx/index.php/bio/article/view/2188
work_keys_str_mv AT facundoxpalacio pvaluestodeterminewhethernaturalselectionoperatesinnatureseizingtheirpotential