<?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>2007-1132</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias forestales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. de cienc. forestales]]></abbrev-journal-title>
<issn>2007-1132</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-11322021000500027</article-id>
<article-id pub-id-type="doi">10.29298/rmcf.v12i67.1079</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis temporal de la distribución de Dendroctonus mexicanus Hopkins (1905) en México (2009-2018)]]></article-title>
<article-title xml:lang="en"><![CDATA[Temporal analysis of the distribution of Dendroctonus mexicanus Hopkins (1905) in Mexico (2009-2018)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perez-Miranda]]></surname>
<given-names><![CDATA[Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Hernández]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velasco-Bautista]]></surname>
<given-names><![CDATA[Efraín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero-Sánchez]]></surname>
<given-names><![CDATA[Martín Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arriola-Padilla]]></surname>
<given-names><![CDATA[Víctor Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acosta-Mireles]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrillo Anzures]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<volume>12</volume>
<numero>67</numero>
<fpage>27</fpage>
<lpage>55</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322021000500027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322021000500027&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322021000500027&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En México, uno de los principales agentes de degradación forestal son los insectos descortezadores; entre ellos, Dendroctonus mexicanus es considerado uno de los más agresivos, ya que cada año afecta a varias especies de pino en México. El presente estudio tuvo como objetivo analizar la distribución temporal y espacial de esta especie, a partir de las bases de datos de las notificaciones forestales oficiales, entregadas a la Secretaría de Recursos Naturales (Semarnat) de 2009 a 2018. Las bases de datos se revisaron, analizaron y depuraron. Se correlacionó la variable área ecológica (norte, centro y sur) en la superficie afectada mediante un modelo de efectos fijos. Durante el intervalo de años en estudio, el escarabajo de la corteza se distribuyó en 25 estados de la república mexicana, principalmente en la Sierra Madre Occidental, Sierra Madre Oriental y Eje Neovolcánico Transversal. Los años con mayor número de registros fueron de 2012 a 2014, con presencia en bosques de pino-encino y encino-pino. Nuevo León, Chihuahua, Durango, Zacatecas y Michoacán tuvieron la mayor superficie afectada por D. mexicanus. Michoacán, Oaxaca, Durango, Estado de México, Nuevo León y Chihuahua fueron las entidades que presentaron una mayor cantidad de madera afectada por la plaga. El valor de la prueba global de F  2,14 (efectos fijos) fue de 17.99, y el valor p fue de 0.0001. Entre las tres zonas analizadas existen diferencias altamente significativas en cuanto a la variable de respuesta.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Bark beetles are one of the main agents of forest degradation in Mexico. Within this group, Dendroctonus mexicanus is considered the most aggressive because it affects several pine species every year. This study aimed to analyze the temporal and spatial distribution of this species based on databases from official forest notifications by the Ministry of Natural Resources (Semarnat) in Mexico from 2009 to 2018. The databases were reviewed, analyzed and debugged. The ecological zone (North, Center, and South) on the affected area variable was correlated by using a fixed effects model. During the interval of the years under study, the bark beetle was distributed in 25 Mexican states, mainly in the Western Sierra Madre, the Eastern Sierra Madre and the Transversal Neovolcanic Axis. The years with the highest number of records were from 2012 to 2014, when the beetle was present mainly in mixed pine-oak and oak-pine forests. Nuevo León, Chihuahua, Durango, Zacatecas and Michoacán are the states with had the largest surface areas affected by the beetle. Michoacán, Oaxaca, Durango, the State of Mexico, Nuevo León and Chihuahua had the largest volume of timber affected by the pest. The overall test value of F  2,14 (fixed effects) was 17.99, and the p-value was 0.0001. There are highly significant differences among the three zones analyzed, in regard to the response variable.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Base de datos]]></kwd>
<kwd lng="es"><![CDATA[bosques de pino]]></kwd>
<kwd lng="es"><![CDATA[correlación]]></kwd>
<kwd lng="es"><![CDATA[descortezador]]></kwd>
<kwd lng="es"><![CDATA[fluctuación poblacional]]></kwd>
<kwd lng="es"><![CDATA[insecto plaga]]></kwd>
<kwd lng="en"><![CDATA[Data bases]]></kwd>
<kwd lng="en"><![CDATA[pine forest]]></kwd>
<kwd lng="en"><![CDATA[correlation]]></kwd>
<kwd lng="en"><![CDATA[bark beetle]]></kwd>
<kwd lng="en"><![CDATA[population fluctuation]]></kwd>
<kwd lng="en"><![CDATA[insect pest]]></kwd>
</kwd-group>
</article-meta>
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