<?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>0120-548X</journal-id>
<journal-title><![CDATA[Acta Biológica Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta biol.Colomb.]]></abbrev-journal-title>
<issn>0120-548X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-548X2024000300014</article-id>
<article-id pub-id-type="doi">10.15446/abc.v29n3.91406</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[ESTADO DE CONSERVACIÓN DE HELECHOS Y LICOFITAS EN LOS ANDES OCCIDENTALES DEL ECUADOR]]></article-title>
<article-title xml:lang="en"><![CDATA[Conservation Status of Ferns and Lycophytes in the Western Andes of Ecuador]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Saransig León]]></surname>
<given-names><![CDATA[Holger Israel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chiriboga-Ortega]]></surname>
<given-names><![CDATA[Rodrigo Daniel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velarde-Cruz]]></surname>
<given-names><![CDATA[Elizabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oña-Rocha]]></surname>
<given-names><![CDATA[Tania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,UTN  ]]></institution>
<addr-line><![CDATA[Ibarra ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>29</volume>
<numero>3</numero>
<fpage>14</fpage>
<lpage>23</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-548X2024000300014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-548X2024000300014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-548X2024000300014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Actividades antropogénicas como la deforestación y los incendios generan pérdida de biodiversidad a nivel mundial. Ecuador es considerado un país megadiverso con 25000 especies de plantas, entre las que destacan los helechos. Sin embargo, este grupo de plantas el estudio de su diversidad y estado de conservación es limitado para la mayoría de las áreas naturales del país. En este estudio se realizó un inventario y se evaluó el estado de conservación de helechos y licofitas en la Estación Experimental La Favorita, ubicada en el occidente de Ecuador. Se muestreó y registró datos biológicos de especímenes en lugares que no se observó perturbaciones antropogénica o ecológica reciente, mediante cuadrantes de 20x20 m. Utilizando el software PAST 3,2 se calcularon los índices de diversidad de Margalef, Simpson y Shannon-Wiener. Se obtuvo un alto rango de diversidad en el bosque nativo. El índice de Sorensen determinó un 96,67 % de similitud de helechos y licofitas compartido entre el bosque nativo y el bosque de eucaliptos. Se contabilizaron un total de 6013 especímenes, pertenecientes a 32 especies. Mediante una adaptación del índice SUMIN se evaluó el estado de conservación, siendo las especies Tectaria pilosa, Adiantum patens y Pteris muricata las que presentan mayor prioridad de conservación, mientras que las especies: Alsophila erinacea, Equisetum bogotense y Blechnum polypodioides se consideraron de atención especial, al presentar una considerable disminución de individuos o la ausencia en uno o más tipos de bosque.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Anthropogenic activities like deforestation or fires cause the loss of diversity worldwide. Ecuador is considered a "hotspot" and is home to 25000 species of plants, among which ferns stand out, but their study is still limited. The present research evaluated the state of conservation of the ferns and lycophytes in the Experimental Station La Favorita, located in the western region of Ecuador. We collected the specimens and biological data in representative locations without recent anthropogenic affectation in quadrants of 20 x 20 m. We used the Software PAST 3,2 to perform diversity indexes such as Margalef, Simpson, and Shannon-Wiener. We obtained a high diversity in the native forest. Sorensen index determined that the ferns and lycophytes shared 96,67 % similarity between native and eucalyptus forests. A total of 6013 specimens of 32 species were registered. SUMIN Index allowed the establishment of the state of conservation of species. Tectaria pilosa, Adiantum patens, and Pteris muricata showed the highest conservation priority. At the same time, Alsophila erinacea, Equisetum bogotense, and Blechnum polypodioides were considered of special attention when presenting a considerable decrease in individuals or absence in different types of forests.]]></p></abstract>
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<kwd lng="en"><![CDATA[Biodiversity index]]></kwd>
<kwd lng="en"><![CDATA[distribution]]></kwd>
<kwd lng="en"><![CDATA[endemism]]></kwd>
<kwd lng="en"><![CDATA[richness species]]></kwd>
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