<?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>S2007-11322017000200057</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diversidad arbórea a diferentes niveles de altitud en la región de El Salto, Durango]]></article-title>
<article-title xml:lang="en"><![CDATA[Tree diversity at different altitude levels in the El Salto, Durango región]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medrano Meraz]]></surname>
<given-names><![CDATA[María de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[Francisco Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corral Rivas]]></surname>
<given-names><![CDATA[Sacramento]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nájera Luna]]></surname>
<given-names><![CDATA[Juan Abel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Tecnológico de El Salto Programa de Maestría en Ciencias Forestales ]]></institution>
<addr-line><![CDATA[ Durango]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Tecnológico de El Salto División de Estudios de Posgrado e Investigación ]]></institution>
<addr-line><![CDATA[ Durango]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>40</numero>
<fpage>57</fpage>
<lpage>68</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-11322017000200057&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-11322017000200057&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-11322017000200057&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La presencia de especies vegetales está en función de la altitud, por lo que, el propósito de este estudio fue estimar y comparar la diversidad arbórea sobre un gradiente altitudinal entre los 1 500 a los 3 000 m de la región de El Salto, Durango, que fue dividido en cinco intervalos de 300 m cada uno. Se seleccionaron doce comunidades forestales, y se ubicaron 268 sitios circulares de 0.1 ha de manera aleatoria, distribuidos de forma proporcional por cada intervalo, dentro del cual se estimó la riqueza de especies (S), los índices de diversidad proporcional de Shannon-Wiener (H&#8217;) y Simpson (&#955;), los de equidad de Pielou (J&#8217;) y de dominancia de Simpson (E&#955;). La comparación de la diversidad arbórea entre altitudes se hizo sobre el índice de Shannon-Wiener mediante la prueba de t de Hutcheson. La riqueza de especies varió de 14 a 25 taxa, el índice de Shannon de 1.94 a 2.67 y el de Simpson de 0.09 a 0.18. Los de equidad y dominancia de Pielou y Simpson sugieren que la abundancia de las especies tiende a ser heterogénea. La prueba de t de Hutcheson demostró que existen diferencias significativas en la diversidad de especies entre los intervalos altitudinales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The presence of plant species is a function of altitude; therefore, the purpose of this study was to estimate and compare tree diversity on the altitudinal gradient of the El Salto, Durango region. Twelve forest communities were selected from between 1 500 and 3 000 m, which was divided into five intervals of 300 m each. A total of 268 circular sites of 0.1 ha were randomly distributed proportionally for each interval, where species richness (S), proportional diversity indexes of Shannon-Wiener (H&#8217;) and Simpson (&#955;), of Pielou&#8217;s equity (J&#8217;) and dominance of Simpson (E&#955;) were determined. Comparison of tree diversity between altitudes was made on the Shannon-Wiener index using the Hutcheson t-test. Species richness varied from 14 to 25 taxa, the Shannon-Wiener index from 1.94 to 2.67 and Simpson&#8217;s 0.09 to 0.18. Equity and dominance by Pielou and Simpson suggest that species abundance tends to be heterogeneous. The Hutcheson t test showed that there are significant differences in species diversity between altitudinal intervals.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Diversidad arbórea]]></kwd>
<kwd lng="es"><![CDATA[gradiente altitudinal]]></kwd>
<kwd lng="es"><![CDATA[índice de Pielou]]></kwd>
<kwd lng="es"><![CDATA[índice de Shannon-Wiener]]></kwd>
<kwd lng="es"><![CDATA[índice de Simpson]]></kwd>
<kwd lng="es"><![CDATA[riqueza de especies]]></kwd>
<kwd lng="en"><![CDATA[Tree diversity]]></kwd>
<kwd lng="en"><![CDATA[altitudinal gradient]]></kwd>
<kwd lng="en"><![CDATA[Pielou index]]></kwd>
<kwd lng="en"><![CDATA[Shannon-Wiener index]]></kwd>
<kwd lng="en"><![CDATA[Simpson index]]></kwd>
<kwd lng="en"><![CDATA[species richness]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Riqueza y diversidad de especies leñosas del bosque tropical caducifolio en San Luis Potosí, México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alanís]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Aranda]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Mata]]></surname>
<given-names><![CDATA[J. M]]></given-names>
</name>
<name>
<surname><![CDATA[Canizales]]></surname>
<given-names><![CDATA[P. A]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Uvalle]]></surname>
<given-names><![CDATA[J. I]]></given-names>
</name>
<name>
<surname><![CDATA[Valdecantos]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[M. G]]></given-names>
</name>
</person-group>
<source><![CDATA[Ciencia UANL]]></source>
<year>2010</year>
<volume>13</volume>
<page-range>287-94</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alvizu D.]]></surname>
<given-names><![CDATA[P. A]]></given-names>
</name>
</person-group>
<source><![CDATA[Complejidad y respuesta funcional de la vegetación de páramo a lo largo de gradientes altitudinales]]></source>
<year>2004</year>
<page-range>66</page-range><publisher-loc><![CDATA[Mérida, Venezuela ]]></publisher-loc>
<publisher-name><![CDATA[Facultad de Ciencias, Universidad de los Andes]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Baca V.]]></surname>
<given-names><![CDATA[J. M]]></given-names>
</name>
</person-group>
<source><![CDATA[Caracterización de la estructura vertical y horizontal en bosques de pino-encino]]></source>
<year>2000</year>
<page-range>105</page-range><publisher-loc><![CDATA[Linares, N L., México ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Autónoma de Nuevo León]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Botero A.]]></surname>
<given-names><![CDATA[M. A]]></given-names>
</name>
</person-group>
<source><![CDATA[Estructura de las comunidades de mamíferos carnívoros en un gradiente altitudinal en el estado de Oaxaca, México]]></source>
<year>2011</year>
<page-range>53</page-range><publisher-loc><![CDATA[Santa Cruz Xoxocotlán, Oax, México ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Politécnico Nacional]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Mammals on mountain sides: elevational patterns of diversity]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brown J.]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<source><![CDATA[Global Ecology and Biogeography]]></source>
<year>2001</year>
<volume>10</volume>
<page-range>101-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Estructura del bosque de pino patula bajo manejo en Ixtlán de Juárez, Oaxaca, México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castellanos-Boñalos]]></surname>
<given-names><![CDATA[J. F]]></given-names>
</name>
<name>
<surname><![CDATA[Treviño-Garza]]></surname>
<given-names><![CDATA[E. J]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre-Calderón]]></surname>
<given-names><![CDATA[O. A]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez-Pérez]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Musalem-Santiago]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[López-Aguillón]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Madera y Bosques]]></source>
<year>2008</year>
<volume>14</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>51-63</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The mid-domain effect: geometric constraints on the geography of species richness]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colwell]]></surname>
<given-names><![CDATA[R. K]]></given-names>
</name>
<name>
<surname><![CDATA[Lees]]></surname>
<given-names><![CDATA[D. C]]></given-names>
</name>
</person-group>
<source><![CDATA[Trends in Ecology &amp; Evolution]]></source>
<year>2000</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>70-6</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Nonbiological gradients in species richness and a spurious Rapoport effect]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colwell]]></surname>
<given-names><![CDATA[R. K]]></given-names>
</name>
<name>
<surname><![CDATA[Hurt]]></surname>
<given-names><![CDATA[G. C]]></given-names>
</name>
</person-group>
<source><![CDATA[The American Naturalist]]></source>
<year>1994</year>
<volume>144</volume>
<page-range>570-95</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Distribución y abundancia de las especies arbóreas y arbustivas en la Sierra Fría, Aguascalientes, México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Díaz]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa]]></surname>
<given-names><![CDATA[R. J]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[S. D]]></given-names>
</name>
</person-group>
<source><![CDATA[Polibotánica]]></source>
<year>2012</year>
<volume>34</volume>
<page-range>99-126</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Clasificación de nueve sitios de bosque mixto de coníferas con presencia de Taxus glubosa en la Sierra Madre Oriental, Nuevo León y Tamaulipas, México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[García A.]]></surname>
<given-names><![CDATA[M. A]]></given-names>
</name>
<name>
<surname><![CDATA[Estrada C]]></surname>
<given-names><![CDATA[A. E]]></given-names>
</name>
<name>
<surname><![CDATA[Cantú A]]></surname>
<given-names><![CDATA[C. M]]></given-names>
</name>
</person-group>
<source><![CDATA[Botanical Sciences]]></source>
<year>2012</year>
<volume>90</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>53-62</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García M.]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Modificaciones al sistema de clasificación climática de Köppen]]></source>
<year>1981</year>
<page-range>252</page-range><publisher-loc><![CDATA[México, D. F., México ]]></publisher-loc>
<publisher-name><![CDATA[Instituto de Geografía. Universidad Nacional Autónoma de México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Evaluación comparativa de la diversidad de flora silvestre entre la isla Taquile y el cerro Chiani en relación a la altitud, Puno, Perú]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gutiérrez F.]]></surname>
<given-names><![CDATA[I. R]]></given-names>
</name>
<name>
<surname><![CDATA[Canales]]></surname>
<given-names><![CDATA[G. A]]></given-names>
</name>
</person-group>
<source><![CDATA[Ecología Aplicada]]></source>
<year>2012</year>
<volume>1</volume>
<page-range>40-6</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A test for comparing diversities based on the Shannon-Wiener formula]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hutcheson]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Theoretical Biology]]></source>
<year>1970</year>
<volume>29</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>151-4</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="">
<collab>Instituto Nacional de Geografía y Estadística</collab>
<source><![CDATA[Espacio y datos de México. Pueblo Nuevo, Durango]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Koleff]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Soberón]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Arita]]></surname>
<given-names><![CDATA[H. T]]></given-names>
</name>
<name>
<surname><![CDATA[Dávila]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-Villela]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Golubov]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Halfter]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Lira-Noriega]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[C. E]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Munguía]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Murguía]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Navarro-Sigüenza]]></surname>
<given-names><![CDATA[A. G]]></given-names>
</name>
<name>
<surname><![CDATA[Téllez]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Ochoa-Ochoa]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Townsend P]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Patrones de diversidad espacial en grupos selectos de especies]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Soberón]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Halffter]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Llorente-Bousquets]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<source><![CDATA[Capital Natural de México, Vol. 1: conocimiento actual de la biodiversidad]]></source>
<year>2008</year>
<page-range>323-64</page-range><publisher-loc><![CDATA[México, D.F., México ]]></publisher-loc>
<publisher-name><![CDATA[Comisión Nacional para el Conocimiento y Uso de la Biodiversidad]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Körner]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Ohsawa]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Spehn]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Berge]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Bugmann]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Groombridge]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Thomas]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Ives]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Jodha]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Messerli]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Price]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Reasoned]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rodgers]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Thonell]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Yashino]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Baron]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Barry]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Blais]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Bradley]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Hofstede]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Kapos]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Leavitt]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Monson]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Nagy]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Schindler]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Vinebrooke]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Watanabe]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mountain systems]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Hassan]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Scholes]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Ash]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
</person-group>
<source><![CDATA[Ecosystems and human well-being: current state and trends. Millennium Ecosystem Assessment]]></source>
<year>2005</year>
<volume>1</volume>
<page-range>681-716</page-range><publisher-loc><![CDATA[Washington, DC, USA ]]></publisher-loc>
<publisher-name><![CDATA[Island Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lamprecht]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<source><![CDATA[Silvicultura en los trópicos: los ecosistemas forestales en los bosques tropicales y sus especies arbóreas; posibilidades y métodos para un aprovechamiento sostenido]]></source>
<year>1990</year>
<page-range>340</page-range><publisher-loc><![CDATA[Eschborn. Hesse, Alemania ]]></publisher-loc>
<publisher-name><![CDATA[Deutsche Gesellschaft fur Technische Zusammenarbeit (GTZ) GmbH]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Elevational gradients in diversity of small mammals]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCain]]></surname>
<given-names><![CDATA[C. M]]></given-names>
</name>
</person-group>
<source><![CDATA[Ecology]]></source>
<year>2005</year>
<volume>86</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>366-72</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<article-title xml:lang=""><![CDATA[Elevational gradients in species richness]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCain]]></surname>
<given-names><![CDATA[C. M]]></given-names>
</name>
<name>
<surname><![CDATA[Grytnes]]></surname>
<given-names><![CDATA[J. A]]></given-names>
</name>
</person-group>
<source><![CDATA[Encyclopedia of Life Sciences (ELS)]]></source>
<year>2010</year>
<page-range>10</page-range><publisher-loc><![CDATA[Chichester, UK ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley & Sons, Ltd]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McCarthy]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Canziani]]></surname>
<given-names><![CDATA[O. F]]></given-names>
</name>
<name>
<surname><![CDATA[Leary]]></surname>
<given-names><![CDATA[N. A]]></given-names>
</name>
<name>
<surname><![CDATA[Dokken]]></surname>
<given-names><![CDATA[D. J]]></given-names>
</name>
<name>
<surname><![CDATA[White]]></surname>
<given-names><![CDATA[K. S]]></given-names>
</name>
</person-group>
<source><![CDATA[Climate change: Impacts, adaptation, and vulnerability]]></source>
<year>2001</year>
<conf-name><![CDATA[ Working Group II to the Third Assessment Report of the Intergovernmental Panel on Climate Change]]></conf-name>
<conf-loc>Cambridge, UK </conf-loc>
<page-range>1005</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Homage to E. Hutchison, or why is there an upper limit to diversity]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Margalef]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Transactions of the Connecticut Academy of Arts and Sciences]]></source>
<year>1972</year>
<volume>44</volume>
<page-range>21-235</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Diversidad, estructura y productividad de bosques templados de Duintervalo, México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Návar Ch.]]></surname>
<given-names><![CDATA[J. J]]></given-names>
</name>
<name>
<surname><![CDATA[González E]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Polibotánica]]></source>
<year>2009</year>
<volume>27</volume>
<page-range>71-87</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Exposure of global mountain systems to climate warming during the 21st Century]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nogués B.]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Araújo]]></surname>
<given-names><![CDATA[M. B]]></given-names>
</name>
<name>
<surname><![CDATA[Errea]]></surname>
<given-names><![CDATA[M. P]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez R]]></surname>
<given-names><![CDATA[J. P]]></given-names>
</name>
</person-group>
<source><![CDATA[Global Environmental Change]]></source>
<year>2007</year>
<volume>17</volume>
<page-range>420-8</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The elevational gradient of species richness: a uniform pattern]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rahbek]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<source><![CDATA[Ecography]]></source>
<year>1995</year>
<volume>18</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>200-5</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[The elevational gradient in altitudinal range: an extension of the Rapoport&#8217;s latitudinal rule to altitude]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stevens]]></surname>
<given-names><![CDATA[G. C]]></given-names>
</name>
</person-group>
<source><![CDATA[The American Naturalist]]></source>
<year>1992</year>
<volume>140</volume>
<page-range>893-1</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Caracterización estructural y diversidad de comunidades arbóreas de La Sierra de Quila]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villavicencio G.]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bauche P]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Gallegos R]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Santiago P]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Huerta M]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<source><![CDATA[Ibugana, Boletín Ibug]]></source>
<year>2005</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>67-76</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
