<?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>1870-7459</journal-id>
<journal-title><![CDATA[Huitzil]]></journal-title>
<abbrev-journal-title><![CDATA[Huitzil]]></abbrev-journal-title>
<issn>1870-7459</issn>
<publisher>
<publisher-name><![CDATA[Sociedad para el Estudio y Conservación de las Aves en México, A.C. (CIPAMEX)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-74592018000200141</article-id>
<article-id pub-id-type="doi">10.28947/hrmo.2018.19.2.319</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Características del hábitat de sitios de descanso del búho manchado (Strix occidentalis lucida) en la Sierra Madre Occidental, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Habitat characteristics of Spotted Owl roosting sites (Strix occidentalis lucida) in the Sierra Madre Occidental, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva-Piña]]></surname>
<given-names><![CDATA[Mariana Jovita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tarango-Arámbula]]></surname>
<given-names><![CDATA[Luis Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Clemente-Sánchez]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortez-Romero]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Martínez]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rafael-Valdez]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ugalde-Lezama]]></surname>
<given-names><![CDATA[Saúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Salinas de Hidalgo S.L.P.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Suelos ]]></institution>
<addr-line><![CDATA[Chapingo Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>19</volume>
<numero>2</numero>
<fpage>141</fpage>
<lpage>156</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-74592018000200141&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-74592018000200141&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-74592018000200141&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El búho manchado (Strix occidentalis lucida) es una especie amenazada y poco estudiada en México. En este estudio caracterizamos el hábitat de sus sitios de descanso (reproductivos y no reproductivos) y aleatorios (sitios en donde la especie se distribuye aleatoriamente sin un patrón) en Aguascalientes, Durango y Zacatecas e identificamos las variables físicas y biológicas (hábitat) que seleccionan. Usamos estadística descriptiva y determinamos mediante Regresión de Poisson (ARP) aquellas variables de hábitat que tuvieron un efecto sobre los búhos registrados; asimismo, agrupamos las variables identificadas por el ARP con un análisis de Correspondencia Simple (ACS) y realizamos una prueba de Kruskal-Wallis con el objeto de identificar posibles diferencias significativas entre sitios (descanso y aleatorios). Localizamos en total 29 búhos (parejas, polluelos e individuos solitarios) en 11 sitios de descanso en bosques de encino-pino (63.6%), en laderas con exposición norte y más inclinadas que la de los sitios aleatorios. Los sitios reproductivos estuvieron en una elevación más alta, comparada con los sitios no reproductivos y aleatorios; asimismo, en estos sitios encontramos una mayor densidad de árboles, con árboles usados como percha y árboles muertos (en pie) de dimensiones más grandes, comparados con los árboles encontrados en los sitios de descanso no reproductivos y aleatorios. Sin embargo, sólo la variable densidad de árboles fue diferente estadísticamente (P &lt; 0.05) entre sitios. Las variables de vegetación que se asociaron más a los sitios de descanso del búho manchado fueron la altura del árbol de percha, la cobertura arbustiva y DAP del árbol de percha. Esta información la podemos utilizar en planes de manejo y conservación de la subespecie en México.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The Spotted Owl (Strix occidentalis lucida) is a threatened species and little has been studied in Mexico. In this study, we characterized its habitat at roosting sites (reproductive and non-reproductive) and at random sites (sites where the species is distributed randomly without a pattern) in Aguascalientes, Durango and Zacatecas and identified the physical and biological (habitat) variables they select. We used descriptive statistics and determined through a Poisson Regression (PRA) those variables that had an effect on the registered owls; we also grouped the variables identified by the PRA with a Simple Correspondence (ACS) analysis and performed a Kruskal-Wallis test to detect possible significant differences between sites (rest and random). We located 29 owls (pairs, chicks and solitary individuals) in 11 roosting sites in oak-pine forests (63.6%) and in slopes with northern exposure and more inclined than those of random sites. The reproductive sites were located at a higher elevation, compared with non-reproductive and random sites; we also found at these sites, a greater tree density and with perching and dead trees of greater dimensions compared with trees found at non-reproductive and at random sites. However, only the tree density variable was statistically different (P &lt; 0.05) between sites. The vegetation variables that were most associated with the roosting sites of the spotted owl were the tree height of the perch tree, the shrub cover and DBH of the perch tree. This information can be used in management and conservation plans of the subspecies in Mexico.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Encinos]]></kwd>
<kwd lng="es"><![CDATA[sitios aleatorios]]></kwd>
<kwd lng="es"><![CDATA[sitios de descanso]]></kwd>
<kwd lng="es"><![CDATA[sitios reproductivos]]></kwd>
<kwd lng="es"><![CDATA[variables]]></kwd>
<kwd lng="en"><![CDATA[Oaks]]></kwd>
<kwd lng="en"><![CDATA[random sites]]></kwd>
<kwd lng="en"><![CDATA[reproductive sites]]></kwd>
<kwd lng="en"><![CDATA[roosting sites]]></kwd>
<kwd lng="en"><![CDATA[variables]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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