<?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>0187-7380</journal-id>
<journal-title><![CDATA[Revista fitotecnia mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. fitotec. mex]]></abbrev-journal-title>
<issn>0187-7380</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitogenética A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-73802018000500519</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[DISTRIBUCIÓN ALTITUDINAL Y ESTACIONAL DE Dendroctonus adjunctus Blandford y Dendroctonus brevicomis Leconte EN COAHUILA, MÉXICO]]></article-title>
<article-title xml:lang="en"><![CDATA[ALTITUDINAL AND SEASONAL DISTRIBUTION OF Dendroctonus adjunctus Blandford AND Dendroctonus brevicomis Leconte IN COAHUILA, MÉXICO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-González]]></surname>
<given-names><![CDATA[Cecilia G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Méndez-González]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cambrón-Sandoval]]></surname>
<given-names><![CDATA[Víctor H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Aranda]]></surname>
<given-names><![CDATA[Mario A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montoya-Jiménez]]></surname>
<given-names><![CDATA[Juan C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sosa-Díaz]]></surname>
<given-names><![CDATA[Librado]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Agraria Antonio Narro  ]]></institution>
<addr-line><![CDATA[Buenavista Saltillo Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[Juriquilla Querétaro]]></addr-line>
<country>Mexico</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>41</volume>
<numero>4a</numero>
<fpage>519</fpage>
<lpage>526</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-73802018000500519&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-73802018000500519&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-73802018000500519&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Los bosques de pino (Pinus spp.) de todo el mundo están declinando debido al mal manejo, al cambio climático, incendios y ataques de insectos descortezadores (Dendroctonus spp.). El objetivo de este estudio fue evaluar la abundancia altitudinal y temporal de D. adjunctus y D. brevicomis y su relación con la temperatura y características del rodal. Se establecieron dos transectos altitudinales a partir de 2600 hasta 3300 metros sobre el nivel del mar (msnm), usando trampas para insectos, cada trampa compuesta de ocho embudos, localizadas a intervalos de 100 m de altitud. Los insectos fueron recolectados cada dos semanas desde febrero 2015 a febrero de 2017. Los datos de temperatura y del rodal fueron obtenidos en cada sitio de muestreo. Los resultados indican que D. adjunctus y D. brevicomis fueron más abundantes por arriba de los 3000 msnm durante primavera y verano. La abundancia de descortezadores se correlacionó significativamente con la temperatura, área basal y densidad de los árboles. En conclusión, las características del bosque y las especies de pino presentes en el rodal determinan la abundancia de D. adjunctus y de D. brevicomis en la región.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY Pine forests (Pinus spp.) across the world are declining due to inappropriate management, climate change, fires, and pine beetle (Dendroctonus spp.) attacks. The objective of this study was to evaluate altitudinal and temporal abundance of D. adjunctus and D. brevicomis and its relationship with temperature and stand characteristics. Two altitudinal transects were established from 2600 to 3300 meters above sea level (masl), using insect traps, each trap made up of eight funnels, located at 100 m intervals of altitude. Insects were collected every two weeks from February 2015 to February 2017. Temperature and stand data were obtained at each sampling site. Results indicated that D. adjunctus and D. brevicomis were more abundant above 3000 masl during spring and summer. Bark beetle abundance was significantly correlated with temperature, basal area and tree density. In conclusion, stand characteristics and pine species present in the stand determine abundance of D. adjunctus and D. brevicomis in the region.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Dendroctonus adjunctus]]></kwd>
<kwd lng="es"><![CDATA[Dendroctonus brevicomis]]></kwd>
<kwd lng="es"><![CDATA[altitud]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="es"><![CDATA[temperatura]]></kwd>
<kwd lng="en"><![CDATA[Dendroctonus adjunctus]]></kwd>
<kwd lng="en"><![CDATA[Dendroctonus brevicomis]]></kwd>
<kwd lng="en"><![CDATA[altitude]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
<kwd lng="en"><![CDATA[temperature]]></kwd>
</kwd-group>
</article-meta>
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