<?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>S2007-42982020000100036</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2529</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Atributos ecológicos y de hábitat de las especies suculentas del área natural protegida monumento natural Yagul, Oaxaca, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Ecological and habitat attributes of the succulent species of the natural protected area, natural monument Yagul, Oaxaca, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luis-Martínez]]></surname>
<given-names><![CDATA[Jaime César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luna-Cavazos]]></surname>
<given-names><![CDATA[Mario]]></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[Flores-Cruz]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Posgrado en Botánica ]]></institution>
<addr-line><![CDATA[Montecillo Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Metropolitana División de Ciencias Biológicas y de la Salud ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>98</volume>
<numero>1</numero>
<fpage>36</fpage>
<lpage>49</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982020000100036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982020000100036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982020000100036&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: Las suculentas son especies características de ecosistemas secos. De los caracteres ambientales de sitio, las laderas, por ser áreas de escurrimiento tienden a estar más secas; allí se establecen suculentas de importancia ecológica.  Hipótesis: No existen diferencias en la composición florística y atributos ecológicos de suculentas, en laderas de distinta orientación del Monumento Natural Yagul.  Descripción de datos: densidad, cobertura y frecuencia; variables edáficas.  Sitio de estudio: Yagul, Tlacolula, Oaxaca a 1,600 m snm. Las coordenadas geográficas 16° 58&#8217; 26&#8221; y 16° 55&#8217; 56&#8221; Norte, 96° 28&#8217; 17&#8221; y 96° 25&#8217; 51&#8221; Oeste.  Métodos: Cálculo de valores de importancia. Mediante métodos multivariables, se comparó la semejanza florística entre laderas, y se evaluaron variables topográficas y edáficas relacionadas con la distribución de las especies.  Resultados: La riqueza florística de suculentas en Yagul, fue de 21 especies; las de mayor IVI fueron Opuntia pubescens presente en todas las orientaciones de ladera, Hechtia pringlei en la ladera norte, O. pilifera en la sur y Myrtillocactus schenckii en las laderas este y oeste. Las laderas del norte presentaron la mayor diferencia florística respecto al resto. Las variables edáficas más importantes, para la distribución de poblaciones, fueron el contenido de materia orgánica y el fósforo.  Conclusiones: Existe diferencia en la composición florística entre laderas; los sitios de la ladera norte, tiene la menor riqueza y se diferencian del resto. Los sitios de la ladera sur tienen mayor contenido de materia orgánica y fósforo, que favorece especies como Stenocereus treleasei y S. stellatus.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Succulents are characteristic species of dry ecosystems. Of the environmental characters of the site, the slopes are runoff areas and they tend to be even drier. On the slopes succulent species of economic and ecological importance are established.  Hypothesis: There are no differences in the floristic composition and ecological attributes of succulents on the slopes of different orientation at the Yagul Natural Monument.  Data description: density, coverage and frequency; edaphic variables.  Study site:  Yagul, Tlacolula, Oaxaca a 1,600 m asl. Geographical coordinates 16° 58&#8217; 26&#8221; y 16° 55&#8217; 56&#8221; N, 96° 28&#8217; 17&#8221; y 96° 25&#8217; 51&#8221; W.  Methods: Calculation of importance values. Through multivariate methods the floristic similarity among slopes was compared, and topographic and edaphic variables related to the species distribution were analyzed.  Results: The richness of succulents in Yagul was 21 species; those with the highest IVI were Opuntia pubescens present in all slope orientations, Hechtia pringlei on the north slope, O. pilifera in the south and Myrtillocactus schenckii on the east and west slopes. The north-facing slopes showed the greatest floristic difference from the rest. The most important edaphic variables in the distribution of populations were the content of organic matter and phosphorus.  Conclusions: There is a difference in the floristic composition between slopes; the sites on the northern slope have the lowest richness and differ from the rest. The sites of the southern slope have a higher content of organic matter and phosphorus, which favors species such as Stenocereus treleasei and S. stellatus.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Análisis multivariado]]></kwd>
<kwd lng="es"><![CDATA[laderas]]></kwd>
<kwd lng="es"><![CDATA[riqueza]]></kwd>
<kwd lng="es"><![CDATA[semejanza florística]]></kwd>
<kwd lng="es"><![CDATA[variables edáficas]]></kwd>
<kwd lng="en"><![CDATA[Edaphic variables]]></kwd>
<kwd lng="en"><![CDATA[floristic similarity]]></kwd>
<kwd lng="en"><![CDATA[multivariate analysis]]></kwd>
<kwd lng="en"><![CDATA[richness]]></kwd>
<kwd lng="en"><![CDATA[slopes]]></kwd>
</kwd-group>
</article-meta>
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