<?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>S1870-34532018000300590</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2018.3.2290</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Algas y cianoprocariontes epilíticos de la Zona Arqueológica de Yaxchilán, Chiapas, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Epilithic algae and cyanoprokaryotes from the Archaeological Site of Yaxchilán, Chiapas, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ibarra-Gallardo]]></surname>
<given-names><![CDATA[Carlos Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Novelo]]></surname>
<given-names><![CDATA[Eberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Biología Comparada]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Biología Comparada]]></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>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>89</volume>
<numero>3</numero>
<fpage>590</fpage>
<lpage>603</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532018000300590&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532018000300590&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532018000300590&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Las algas y cianoprocariontes epilíticas que habitan en la Zona Arqueológica de Yaxchilán, Chiapas, cubren la mayoría de los muros de los edificios; es un sitio que se encuentra en la Selva Lacandona, junto al río Usumacinta con una humedad relativa muy alta. El objetivo de este trabajo fue documentar las especies de algas y cianoprocariontes que crecen sobre los monumentos arqueológicos de esta zona, con base en la morfología microscópica. De 135 muestras recolectadas entre 2006 y 2008, se identificaron 49 especies: 25 Chroococcales, 12 Nostocales y 3 Oscillatoriales de Cyanoprokaryota; 3 Chlorellales y 4 Trentepohliales de Chlorophyta y 2 Naviculales de Bacillariophyta. Se describen 9 especies que son nuevos registros para México y todas las especies encontradas son ilustradas como referencia. La valencia ecológica de las especies permite caracterizar la flora con afinidad a un sustrato calcáreo con un pH básico y en condiciones de iluminación, humedad y temperatura fluctuantes durante el día. Finalmente, se señala la necesidad de conservar la flora y los monumentos siguiendo estrategias de control basadas en el conocimiento de los ciclos de vida de los organismos epilíticos. Este es el primer estudio sobre las algas y cianoprocariontes de la zona arqueológica de Yaxchilán.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The epilithic algae and cyanoprokaryotes that inhabit the Archaeological Zone of Yaxchilán, Chiapas, cover most of the walls of buildings; it is a site located in the Lacandon Jungle, next to the Usumacinta river with a very high relative humidity. The aim of this work was to document the species of algae and cyanoprokaryotes that grow on the archaeological monuments of this area, based on the microscopic morphology. From 135 samples collected between 2006 and 2008, 49 species were identified: 25 Chroococcales, 12 Nostocales and 3 Oscillatoriales of Cyanoprokaryota; 3 Chlorellales and 4 Trentepohliales of Chlorophyta and 2 Naviculales of Bacillariophyta. We describe 9 species that are new records for Mexico and all the species found are illustrated as a reference. The ecological valence of the species allows to characterize the flora with affinity to a karst substrate with a basic pH and under fluctuating light, humidity and temperature conditions during the day. Finally, the need to preserve flora and monuments following control strategies based on knowledge of the life cycles of epilithic organisms is pointed out. This is the first study on algae and cyanoprokaryotes in the archaeological zone of Yaxchilán.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ambientes subaéreos]]></kwd>
<kwd lng="es"><![CDATA[Biodeterioro]]></kwd>
<kwd lng="es"><![CDATA[Conservación]]></kwd>
<kwd lng="es"><![CDATA[Monumentos arqueológicos]]></kwd>
<kwd lng="es"><![CDATA[Riqueza de especies]]></kwd>
<kwd lng="en"><![CDATA[Subaerial environments]]></kwd>
<kwd lng="en"><![CDATA[Biodeterioration]]></kwd>
<kwd lng="en"><![CDATA[Conservation]]></kwd>
<kwd lng="en"><![CDATA[Archaeological monuments]]></kwd>
<kwd lng="en"><![CDATA[Species richness]]></kwd>
</kwd-group>
</article-meta>
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