<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532016000100216</article-id>
<article-id pub-id-type="doi">10.1016/j.rmb.2016.01.021</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Historia florística y ambiental del bosque mesófilo de montaña en el centro-occidente de México durante la pequeña edad de hielo]]></article-title>
<article-title xml:lang="en"><![CDATA[Floristic and environmental history of the cloud forest in west-central Mexico during the little ice age]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo-Batista]]></surname>
<given-names><![CDATA[Ana Patricia del]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa-Rangel]]></surname>
<given-names><![CDATA[Blanca Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lozano-García]]></surname>
<given-names><![CDATA[Socorro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olvera-Vargas]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cuevas Guzmán]]></surname>
<given-names><![CDATA[Ramón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de la Costa Sur ]]></institution>
<addr-line><![CDATA[Autlán de Navarro Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de la Costa Sur Departamento de Ecología y Recursos Naturales]]></institution>
<addr-line><![CDATA[Autlán de Navarro Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geología Departamento de Paleontología]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<volume>87</volume>
<numero>1</numero>
<fpage>216</fpage>
<lpage>229</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532016000100216&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532016000100216&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532016000100216&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Por medio de técnicas paleoecológicas se documentó la historia florística y ambiental del bosque mesófilo de montaña con presencia relictual de Acer saccharum subsp. skutchii del centro-occidente de México. La reconstrucción de la vegetación de los últimos 720 años se efectuó a través del núcleo de sedimento (TLP-N2) de 37 cm de profundidad; los indicadores geoquímicos utilizados incluyen susceptibilidad magnética, fluorescencia de rayos X y pérdida por ignición; mientras que el microcarbón fue empleado como indicador de incendios forestales. Los resultados muestran el inicio de la pequeña edad de hielo a partir de 1341-1858 dC, con la presencia de abundantes taxones leñosos y pteridofitas. El periodo más seco se presentó de 1653-1720 dC, etapa que corresponde con el mínimo de Maunder en la actividad solar; este se caracteriza por un aumento de polen de herbáceas como Poaceae, Piper y Arisaema. Las condiciones ambientales actuales se establecieron a partir de 1871 dC, que se asemeja con las condiciones del periodo cálido medieval (1230-1319 dC), mientras que la actividad humana relacionada con la presencia de polen de maíz se infiere desde hace 720 años. Los resultados del registro paleoecológico sugieren que el bosque mesófilo ha sido fluctuante y resiliente durante el último milenio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Through the use of palaeoecological techniques we inferred the environmental and floristic history of the cloud forest with relict presence of Acer saccharum subsp. skutchii in west-central Mexico. A 37 cm depth sediment core (TLP-N2) was used to reconstruct the vegetation of the last 720 years; paleoenvironmental proxy consisted of magnetic susceptibility, XRF and loss of ignition, while microfossil charcoal was used as a proxy reflecting fire occurrence. The beginning of the Little Ice Age is reported around 1341-1858 with the presence of abundant woody taxa and pteridophytes. The driest period was detected from 1653 to 1720, which corresponds with the Maunder minimum in solar activity; this period is characterized by an increase in Poaceae, Piper and Arisaema. The present conditions were established since 1871, resembling the conditions of the Medieval Warm Period (1230-1319), while human activity related to the presence of maize pollen is inferred from 720 years ago. Results from this study suggest that cloud forests have been fluctuating but resilient over the last millennium.]]></p></abstract>
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<kwd lng="es"><![CDATA[Holoceno Tardío]]></kwd>
<kwd lng="es"><![CDATA[Paleoecología]]></kwd>
<kwd lng="es"><![CDATA[Vegetación]]></kwd>
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