<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532018000100327</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2018.1.2188</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[P-values to determine whether natural selection operates in nature: seizing their potential]]></article-title>
<article-title xml:lang="es"><![CDATA[Valores de p para determinar si opera la selección natural en la naturaleza: aprovechando su potencial]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacio]]></surname>
<given-names><![CDATA[Facundo X.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Consejo Nacional de Investigaciones Científicas y Técnicas División Zoología Vertebrados ]]></institution>
<addr-line><![CDATA[La Plata Buenos Aires]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>89</volume>
<numero>1</numero>
<fpage>327</fpage>
<lpage>330</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532018000100327&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532018000100327&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532018000100327&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: After 34 years of the development of Lande and Arnold&#8217;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.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: A 34 años del desarrollo del modelo de Lande y Arnold (1983) para cuantificar la selección natural sobre caracteres fenotípicos cuantitativos multivariados, los investigadores aún se basan considerablemente en valores de p para determinar si la selección natural opera o no sobre poblaciones biológicas. Discuto algunas cuestiones que pueden surgir del uso de los valores de p individuales obtenidos a partir de los gradientes de selección, en lugar de calcular un único valor de p para analizar un patrón general de selección. Deberían reportarse los gradientes de selección, errores estándares y una medida global de estas magnitudes de efecto cuando se cuantifica el régimen e intensidad de la selección natural.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Phenotypic selection]]></kwd>
<kwd lng="en"><![CDATA[Selection gradients]]></kwd>
<kwd lng="en"><![CDATA[Statistical significance]]></kwd>
<kwd lng="es"><![CDATA[Selección fenotípica]]></kwd>
<kwd lng="es"><![CDATA[Gradientes de selección]]></kwd>
<kwd lng="es"><![CDATA[Significancia estadística]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Becker]]></surname>
<given-names><![CDATA[B. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[M. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The synthesis of regression slopes in meta-analysis]]></article-title>
<source><![CDATA[Statistical Science]]></source>
<year>2007</year>
<volume>22</volume>
<page-range>414-29</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blows]]></surname>
<given-names><![CDATA[M. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Brooks]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measuring nonlinear selection]]></article-title>
<source><![CDATA[American Naturalist]]></source>
<year>2003</year>
<volume>162</volume>
<page-range>815-20</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calsbeek]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[McPeek]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On the utility of meta-analyses in the study of natural selection]]></article-title>
<source><![CDATA[Journal of Evolutionary Biology]]></source>
<year>2016</year>
<volume>29</volume>
<page-range>1907-8</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Conner]]></surname>
<given-names><![CDATA[J. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[How strong is natural selection?]]></article-title>
<source><![CDATA[Trends in Ecology and Evolution]]></source>
<year>2001</year>
<volume>16</volume>
<page-range>215-7</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Endler]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Natural selection in the wild]]></source>
<year>1986</year>
<publisher-loc><![CDATA[Princeton, New Jersey ]]></publisher-loc>
<publisher-name><![CDATA[Princeton University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hoekstra]]></surname>
<given-names><![CDATA[H. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoekstra]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Berrigan]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Vignieri]]></surname>
<given-names><![CDATA[S. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoang]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hill]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Strength and tempo of directional selection in the wild]]></article-title>
<source><![CDATA[Proceedings of the National Academy of Sciences]]></source>
<year>2001</year>
<volume>98</volume>
<page-range>9157-60</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Johnson]]></surname>
<given-names><![CDATA[D. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The insignificance of statistical significance testing]]></article-title>
<source><![CDATA[Journal of Wildlife Management]]></source>
<year>1999</year>
<volume>63</volume>
<page-range>763-72</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kingsolver]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoekstra]]></surname>
<given-names><![CDATA[H. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Hoekstra]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Berrigan]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Vignieri]]></surname>
<given-names><![CDATA[S. N.]]></given-names>
</name>
<name>
<surname><![CDATA[Hill]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The strength of phenotypic selection in natural populations]]></article-title>
<source><![CDATA[American Naturalist]]></source>
<year>2001</year>
<volume>157</volume>
<page-range>245-61</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kingsolver]]></surname>
<given-names><![CDATA[J. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Diamond]]></surname>
<given-names><![CDATA[S. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Siepielski]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Carlson]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Synthetic analyses of phenotypic selection in natural populations: lessons, limitations and future directions]]></article-title>
<source><![CDATA[Evolutionary Ecology]]></source>
<year>2012</year>
<volume>26</volume>
<page-range>1101-18</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lande]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Arnold]]></surname>
<given-names><![CDATA[S. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The measurement of selection on correlated characters]]></article-title>
<source><![CDATA[Evolution]]></source>
<year>1983</year>
<volume>37</volume>
<page-range>1210-26</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mitchell-Olds]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Shaw]]></surname>
<given-names><![CDATA[R. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Regression analysis of natural selection: statistical inference and biological interpretation]]></article-title>
<source><![CDATA[Evolution]]></source>
<year>1987</year>
<volume>41</volume>
<page-range>1149-61</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moran]]></surname>
<given-names><![CDATA[M. D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arguments for rejecting the sequential Bonferroni in ecological studies]]></article-title>
<source><![CDATA[Oikos]]></source>
<year>2003</year>
<volume>100</volume>
<page-range>403-5</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morrissey]]></surname>
<given-names><![CDATA[M. B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Meta-analysis of magnitudes, differences and variation in evolutionary parameters]]></article-title>
<source><![CDATA[Journal of Evolutionary Biology]]></source>
<year>2016</year>
<volume>29</volume>
<page-range>1882-904</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morrissey]]></surname>
<given-names><![CDATA[M. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Sakrejda]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Unification of regression-based methods for the analysis of natural selection]]></article-title>
<source><![CDATA[Evolution]]></source>
<year>2013</year>
<volume>67</volume>
<page-range>2094-100</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nakagawa]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Cuthill]]></surname>
<given-names><![CDATA[I. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect size, confidence interval and statistical significance: a practical guide for biologists]]></article-title>
<source><![CDATA[Biological Reviews]]></source>
<year>2007</year>
<volume>82</volume>
<page-range>591-605</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rice]]></surname>
<given-names><![CDATA[W. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analyzing tables of statistical tests]]></article-title>
<source><![CDATA[Evolution]]></source>
<year>1989</year>
<volume>43</volume>
<page-range>223-5</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sullivan]]></surname>
<given-names><![CDATA[G. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Feinn]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using effect size -or why the P value is not enough]]></article-title>
<source><![CDATA[Journal of Graduate Medical Education]]></source>
<year>2012</year>
<volume>4</volume>
<page-range>279-82</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yoccoz]]></surname>
<given-names><![CDATA[N. G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use, overuse, and misuse of significance tests in evolutionary biology and ecology]]></article-title>
<source><![CDATA[Bulletin of the Ecological Society of America]]></source>
<year>1991</year>
<volume>72</volume>
<page-range>106-11</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
