<?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>1405-2768</journal-id>
<journal-title><![CDATA[Polibotánica]]></journal-title>
<abbrev-journal-title><![CDATA[Polibotánica]]></abbrev-journal-title>
<issn>1405-2768</issn>
<publisher>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-27682019000100001</article-id>
<article-id pub-id-type="doi">10.18387/polibotanica.47.1</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diversidad de helechos y licopodios en el área privada de conservación Talhpan, Papantla, Veracruz, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Diversity of ferns and lycopods in the Talhpan private conservation area, Papantla, Veracruz, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrios-Morales]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alanís-Méndez]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carvajal-Hernández]]></surname>
<given-names><![CDATA[C.I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Veracruzana Facultad de ciencias Biológicas y Agropecuarias ]]></institution>
<addr-line><![CDATA[Tuxpan Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Veracruzana Instituto de Investigaciones Biológicas ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<numero>47</numero>
<fpage>1</fpage>
<lpage>12</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-27682019000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-27682019000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-27682019000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El conocimiento de la pteridoflora de la zona norte de Veracruz es escaso, y más aún cuando se habla de la riqueza de helechos y licopodios en las zonas de baja altitud. El objetivo del estudio fue analizar la diversidad de helechos y licopodios en un fragmento de selva mediana subperennifolia. Se establecieron 15 parcelas de 20 x 20 m, en tres hábitats (fragmento de selva, vegetación ribereña y cultivo de cítricos), para analizar la riqueza, abundancia y recambio de especies de estos grupos en distintos hábitats. Además, se determinaron las especies presentes en zonas aledañas a la reserva. Se registró un total de 22 especies de helechos y licopodios; 17 de ellas estaban presentes en las parcelas de muestreo y el resto se encontraron en sitios aledaños. El hábitat ribereño presentó la mayor riqueza específica, seguido del fragmento de selva; estos dos hábitats tuvieron una similitud florística de 22%. La zona de cultivo presentó la menor riqueza específica. La selva representa un refugio importante para la diversidad de helechos, sin embargo, la vegetación ribereña fue la que mayor diversidad presentó. El recambio de especies fue alto entre ambientes, lo cual tiene un valor para los planes de conservación, ya que es necesario incluir la heterogeneidad paisajística en las propuestas de preservación de los ecosistemas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The knowledge of the pteridophyta in flora of the northern zone of Veracruz is scarce, and ever more when it comes to species richness of ferns and lycopods in the elevational low zones. The aim of this research is to analyze the diversity of ferns and lycopods in a semideciduos forest. Were established 15 plots of 20 x 20 m in three habitats (semideciduos forest fragment, riparian vegetation and citrus cultivation) to analyze the richness, abundance and turnover of species of these groups in different habitats. In addition, the species present in areas bordering the reserve were registered. A total of 22 species of ferns and lycopods were recorded, of these, 17 correspond to the sampling plots and the rest were found in adjacent sites. The riparian habitat presented the highest specific richness, followed by the semideciduos forest fragment; these two habitats had a floristic similarity of 22%. Citrus cultivation had the lowest specific richness. The forest in the research area represents a refuge for the diversity of ferns, however the riparian vegetation was the one that presented the greatest diversity. The replacement of species in the different habitats is high, which has a value for conservation plans, since it is necessary to include landscape heterogeneity in the proposals for the preservation of ecosystems.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[diversidad alfa y beta]]></kwd>
<kwd lng="es"><![CDATA[inventario florístico]]></kwd>
<kwd lng="es"><![CDATA[pteridofitas]]></kwd>
<kwd lng="es"><![CDATA[selva mediana subperennifolia]]></kwd>
<kwd lng="es"><![CDATA[vegetación ribereña]]></kwd>
<kwd lng="en"><![CDATA[alpha and beta diversity]]></kwd>
<kwd lng="en"><![CDATA[floristic inventory]]></kwd>
<kwd lng="en"><![CDATA[pteridophyte]]></kwd>
<kwd lng="en"><![CDATA[riparian vegetation]]></kwd>
<kwd lng="en"><![CDATA[semideciduos forest]]></kwd>
</kwd-group>
</article-meta>
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