<?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>2007-4018</journal-id>
<journal-title><![CDATA[Revista Chapingo serie ciencias forestales y del ambiente]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Chapingo ser. cienc. for. ambient]]></abbrev-journal-title>
<issn>2007-4018</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Chapingo, Coordinación de Revistas Institucionales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40182019000200219</article-id>
<article-id pub-id-type="doi">10.5154/r.rchscfa.2018.09.066</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Influence of the seed tree method on the diversity of regeneration in a mixed forest in Durango, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Influencia del método de árboles padres en la diversidad de la regeneración de bosques mixtos de Durango, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[Francisco J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Deras-Ávila]]></surname>
<given-names><![CDATA[Ana G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Deras-Ávila]]></surname>
<given-names><![CDATA[Nelson I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Colín]]></surname>
<given-names><![CDATA[José G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de El Salto  ]]></institution>
<addr-line><![CDATA[El Salto Durango]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2019</year>
</pub-date>
<volume>25</volume>
<numero>2</numero>
<fpage>219</fpage>
<lpage>234</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40182019000200219&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40182019000200219&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40182019000200219&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Forest managers need to know the impact of regeneration cuts on tree species diversity in order to conserve it.  Objective:  To evaluate changes in tree species richness and diversity after applying the seed tree method in six communities.  Materials and methods:  The communities of Ciénega Grande, Las Ciénegas, La Colmena, El Venado, Los Bajíos and Pino Gordo of the Pueblo Nuevo ejido, Durango, were divided into three plots called: a) regeneration in seed trees cuttings (RST); b) regeneration in adult trees (RAT); and c) adult trees (AT). Starting from the center of each RST plot, and following the cardinal and subcardinal points, eight sites of 25 m2 and 0.1 ha were located to record the regeneration and adult tree species, respectively. Species richness indicators (Shannon-Wiener, Simpson, Pielou and Sørensen) were estimated to characterize the plots by community and were compared with t-tests and rarefaction analysis.  Results and discussion:  Twelve species were recorded in the study area, of which 11 are found as a renewal of seed trees. Species richness in the RST plots with respect to that of AT was equal in the Ciénega Grande, El Venado and La Colmena communities, and higher in Las Ciénegas and Los Bajíos. The Shannon-Wiener and Simpson indices were higher in Pino Gordo, Los Bajíos and El Venado. The Sørensen index ranges from 0.67 to 1.0, indicating high species similarity among plots.  Conclusions.  The seed tree method in a mixed forest ensures the continuity of tree species diversity.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  El manejador forestal necesita conocer el impacto que las cortas de regeneración causan en la diversidad de especies arbóreas, para poder conservarla.  Objetivo.  Evaluar los cambios en riqueza y diversidad de especies arbóreas después de aplicar el método de árboles padres en seis localidades.  Materiales y métodos.  Las localidades Ciénega Grande, Las Ciénegas, La Colmena, El Venado, Los Bajíos y Pino Gordo del ejido Pueblo Nuevo, Durango, se dividieron en tres parcelas denominadas: a) regeneración en árboles padres (RAP); b) regeneración en arbolado adulto (RAA); y c) arbolado adulto (AA). Partiendo del centro de cada parcela de RAP, y siguiendo los puntos cardinales y subcardinales, se ubicaron ocho sitios de 25 m2 y 0.1 ha, para registrar las especies de la regeneración y las del arbolado adulto, respectivamente. Los indicadores de riqueza de especies, Shannon-Wiener, Simpson, Pielou y Sørensen se estimaron para caracterizar las parcelas por localidad y se compararon con pruebas de t y análisis de rarefacción.  Resultados y Discusión.  Se registraron 12 especies presentes en el área de estudio, de las cuales 11 se encuentran como renuevo de árboles padres. La riqueza de especies en las parcelas de RAP con respecto a la de AA fue igual en las localidades Ciénega Grande, El Venado y La Colmena, y superior en Las Ciénegas y Los Bajíos. Los índices de Shannon-Wiener y Simpson fueron superiores en Pino Gordo, Los Bajíos y El Venado. El índice de Sørensen varía de 0.67 a 1.0, indicando alta semejanza de especies entre parcelas.  Conclusiones.  El método de árboles padres garantiza la continuidad de la diversidad de especies arbóreas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Species richness]]></kwd>
<kwd lng="en"><![CDATA[Shannon-Wiener]]></kwd>
<kwd lng="en"><![CDATA[Simpson]]></kwd>
<kwd lng="en"><![CDATA[Pielou]]></kwd>
<kwd lng="en"><![CDATA[Sørensen]]></kwd>
<kwd lng="en"><![CDATA[rarefaction]]></kwd>
<kwd lng="es"><![CDATA[Riqueza de especies]]></kwd>
<kwd lng="es"><![CDATA[Shannon-Wiener]]></kwd>
<kwd lng="es"><![CDATA[Simpson]]></kwd>
<kwd lng="es"><![CDATA[Pielou]]></kwd>
<kwd lng="es"><![CDATA[Sørensen]]></kwd>
<kwd lng="es"><![CDATA[rarefacción]]></kwd>
</kwd-group>
</article-meta>
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