<?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>2007-4298</journal-id>
<journal-title><![CDATA[Botanical Sciences]]></journal-title>
<abbrev-journal-title><![CDATA[Bot. sci]]></abbrev-journal-title>
<issn>2007-4298</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Botánica de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-42982021000100043</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2599</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Growth, reproduction and weediness: testing four related species on a gradient of synanthropy]]></article-title>
<article-title xml:lang="es"><![CDATA[Crecimiento, reproducción y grado de ser maleza: probando cuatro especies emparentadas en un gradiente de sinantropía]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hanan-Alipi]]></surname>
<given-names><![CDATA[Ana M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vibrans]]></surname>
<given-names><![CDATA[Heike]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vega-Frutis]]></surname>
<given-names><![CDATA[Rocio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Juárez-Rosete]]></surname>
<given-names><![CDATA[Cecilia Rocío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdivia-Bernal]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Fernández]]></surname>
<given-names><![CDATA[Jesús B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nayarit  ]]></institution>
<addr-line><![CDATA[ Nayarit]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Posgrado en Botánica ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Nayarit  ]]></institution>
<addr-line><![CDATA[ Nayarit]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Nayarit  ]]></institution>
<addr-line><![CDATA[ Nayarit]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco  ]]></institution>
<addr-line><![CDATA[Guadalajara ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>99</volume>
<numero>1</numero>
<fpage>43</fpage>
<lpage>57</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982021000100043&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982021000100043&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982021000100043&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  The ability of weeds to thrive in the stressful environments created by human disturbance has been explained mainly by a set of life history traits, such as short life cycles, generalist habits, as well as early and sustained reproduction. However, the evidence that these traits are better represented in weeds than in related species of other environments is mixed. To explore the relationship between weeds and the life history traits, we used the fact that plants are weedy to different degrees because of the heterogeneous nature of environments produced by disturbance. In a group of four congeners, we studied some growth and reproduction parameters in relation to the degree of synanthropy of the species, determined previously.  Methods:  In a common garden experiment, we compared relative growth rate, time to flowering, and biomass distribution between four species of the genus Melampodium (Asteraceae) that are weedy to different degrees.  Results:  The most synanthropic species, M. divaricatum, stood out for its steady growth rate, but not for assigning more resources to reproduction, nor for early flowering. In general, we found no association between growth and reproductive parameters studied in the four Melampodium species and the degree to which they are weeds.  Conclusions:  Results suggest that traits such as fast growth and early reproduction may not be essential for life as a weed. Rather, weedy species exhibit a complex pattern of growth traits that could be affected by conditions independent of anthropogenic disturbance.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes y preguntas:  La capacidad de malezas para prosperar en entornos estresantes creados por perturbación humana se ha explicado principalmente por un conjunto de rasgos de historia de vida, como ciclos de vida cortos, hábitos generalistas, así como reproducción temprana y sostenida. Sin embargo, la evidencia de que estos rasgos están mejor representados en malezas que en especies emparentadas de otros ambientes es ambigua. Para explorar si tal relación existe, utilizamos el hecho de que las plantas son malezas en diferentes grados debido a la naturaleza heterogénea de ambientes producidos por la perturbación. En un grupo de cuatro congéneres, estudiamos algunos parámetros de crecimiento y reproducción en relación con el grado en que cada especie es maleza, determinado previamente.  Métodos:  En un experimento de jardín común, comparamos la tasa relativa de crecimiento, tiempo a floración y distribución de biomasa entre cuatro especies del género Melampodium (Asteraceae) que tienen diferentes grados de sinantropía.  Resultados:  La especie más sinantrópica, M. divaricatum, destacó por su tasa de crecimiento estable, pero no por asignar más recursos a la reproducción, ni por floración temprana. En general, no encontramos asociación entre el crecimiento y los parámetros reproductivos estudiados en las cuatro especies de Melampodium y el grado en que son malezas.  Conclusiones:  Los resultados sugieren que rasgos como rápido crecimiento y reproducción temprana no son esenciales para la vida como maleza. Más bien, las malezas exhiben un patrón complejo de rasgos de crecimiento que podrían verse afectados por condiciones independientes de la perturbación antropogénica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Melampodium]]></kwd>
<kwd lng="en"><![CDATA[relative growth rate]]></kwd>
<kwd lng="en"><![CDATA[resource allocation]]></kwd>
<kwd lng="en"><![CDATA[time to flowering]]></kwd>
<kwd lng="en"><![CDATA[weeds]]></kwd>
<kwd lng="es"><![CDATA[Melampodium]]></kwd>
<kwd lng="es"><![CDATA[tasa relativa de crecimiento]]></kwd>
<kwd lng="es"><![CDATA[asignación de recursos]]></kwd>
<kwd lng="es"><![CDATA[tiempo a floración]]></kwd>
<kwd lng="es"><![CDATA[malezas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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