<?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>1659-4266</journal-id>
<journal-title><![CDATA[Cuadernos de Investigación UNED]]></journal-title>
<abbrev-journal-title><![CDATA[Cuadernos de Investigación UNED]]></abbrev-journal-title>
<issn>1659-4266</issn>
<publisher>
<publisher-name><![CDATA[Universidad Estatal a Distancia de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1659-42662022000200125</article-id>
<article-id pub-id-type="doi">10.22458/urj.v14i2.4008</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Bioacoustics characterization and habitat use of glass frogs in El Salvador]]></article-title>
<article-title xml:lang="es"><![CDATA[Caracterización bioacústica y uso del hábitat de la rana de cristal en El Salvador]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[Francisco S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Henríquez]]></surname>
<given-names><![CDATA[Vladlen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pocasangre-Orellana]]></surname>
<given-names><![CDATA[Xochilt]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Argueta Rivera]]></surname>
<given-names><![CDATA[José Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chica Argueta]]></surname>
<given-names><![CDATA[Erwin Arquímedes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Fundación Naturaleza El Salvador Departamento de investigación ]]></institution>
<addr-line><![CDATA[Colonia Escalón San Salvador]]></addr-line>
<country>El Salvador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Alcaldía Municipal de Joateca Unidad Ambiental de Joateca ]]></institution>
<addr-line><![CDATA[ Morazán]]></addr-line>
<country>El Salvador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Municipio de Joateca  ]]></institution>
<addr-line><![CDATA[ Morazán]]></addr-line>
<country>El Salvador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>14</volume>
<numero>2</numero>
<fpage>125</fpage>
<lpage>137</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-42662022000200125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-42662022000200125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-42662022000200125&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Introduction: Glass frogs occur from Mexico to South America, and, their taxonomy and distribution are currently debated. In El Salvador, the only species is thought to be Hyalinobatrachium fleischmanni, but it may instead be Hyalinobatrachium viridissimum. In any case, the species is scarcely recorded and understudied. Objective: To estimate the species distribution in the Río Lempa basin, and to compare its call with available records. Methods: We used local volunteers to sample 53 sites in Cabañas and Morazán, El Salvador, during the rainy season (September to November); these were visited once in 2019 and once in 2020. Volunteers counted individuals along transects from 6 to 8 pm and recorded some calls with cell phones. Results: We counted 361 individuals, added 53 new localities (mainly deciduous broad-leaved forest and agricultural systems). Abundance was more related with elevation and forest cover, than with river characteristics. Our evaluation of 32 calls found differences in the peak frequency between these glass frog populations and those of H. fleischmanni and H. viridissimum comb. nov. Conclusion: Salvadorian glass frogs are more widespread than previously recorded, their distribution is more related with elevation and forest than with rivers types, and their taxonomic status remains unsolved.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Introducción: Las ranas de cristal se encuentran desde México hasta América del Sur, y su taxonomía y distribución son actualmente objeto de debate. En El Salvador, se cree que la única especie es Hyalinobatrachium fleischmanni, pero podría ser Hyalinobatrachium viridissimum. En cualquier caso, la especie está escasamente registrada y poco estudiada. Objetivo: Estimar la distribución de especies en la cuenca del Río Lempa y comparar su canto con los registros disponibles. Métodos: Utilizamos voluntarios locales para muestrear 53 sitios en Cabañas y Morazán, El Salvador, durante la temporada de lluvias (septiembre a noviembre); estos fueron visitados una vez en 2019 y una vez en 2020. Los voluntarios contaron individuos a lo largo de transeptos, de 6 a 8 pm, y grabaron algunas llamadas con teléfonos celulares. Resultados: Contamos 361 individuos, agregamos 53 nuevas localidades (principalmente bosques caducifolios latifoliados y sistemas agrícolas). La abundancia estuvo más relacionada con la altitud y la cobertura forestal que con las características del río. Nuestra evaluación de 32 llamadas encontró diferencias en la frecuencia máxima entre estas poblaciones de ranas de cristal y las de H. fleischmanni y H. viridissimum comb. nov. Conclusión: Las ranas de cristal salvadoreñas están más extendidas de lo registrado previamente, su distribución está más relacionada con la elevación y el bosque que con los tipos de ríos, y su estado taxonómico sigue sin resolverse.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Amphibians]]></kwd>
<kwd lng="en"><![CDATA[Central America]]></kwd>
<kwd lng="en"><![CDATA[Centrolenidae]]></kwd>
<kwd lng="en"><![CDATA[Conservation]]></kwd>
<kwd lng="en"><![CDATA[Citizen Science]]></kwd>
<kwd lng="en"><![CDATA[Distribution.]]></kwd>
<kwd lng="es"><![CDATA[Anfibios]]></kwd>
<kwd lng="es"><![CDATA[Centro América]]></kwd>
<kwd lng="es"><![CDATA[Centrolenidae]]></kwd>
<kwd lng="es"><![CDATA[Conservación]]></kwd>
<kwd lng="es"><![CDATA[Ciencia ciudadana]]></kwd>
<kwd lng="es"><![CDATA[Distribución.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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