<?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>0034-7744</journal-id>
<journal-title><![CDATA[Revista de Biología Tropical]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. biol. trop]]></abbrev-journal-title>
<issn>0034-7744</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-77442020000401198</article-id>
<article-id pub-id-type="doi">10.15517/rbt.v68i4.38333</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Colémbolos epiedáficos (Hexapoda: Collembola) en dos usos del suelo en la Altillanura colombiana]]></article-title>
<article-title xml:lang="en"><![CDATA[Epiedaphic springtails (Hexapoda: Collembola) in two soil uses of Colombia Eastern plains]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Duarte-Núñez]]></surname>
<given-names><![CDATA[Dayssy-A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinzón-Florián]]></surname>
<given-names><![CDATA[Olga-P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palacios-Vargas]]></surname>
<given-names><![CDATA[José-G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Distrital Francisco José de Caldas  ]]></institution>
<addr-line><![CDATA[ Bogotá]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>68</volume>
<numero>4</numero>
<fpage>1198</fpage>
<lpage>1210</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0034-77442020000401198&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0034-77442020000401198&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0034-77442020000401198&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  Los colémbolos epiedáficos participan en una amplia variedad de servicios ecosistémicos relacionados con la disponibilidad de nutrientes para las plantas, el almacenamiento y la regulación del agua, la estabilidad del suelo y el control de la humedad y el pH necesarios para la fertilidad de los suelos. Por esta razón, los colémbolos epiedáficos se consideran como organismos sensibles a los cambios generados en el uso del suelo.  Objetivo:  Comparar la fauna epiedáfica de dos tipos de vegetación introducida: pastos y plantaciones de Eucalyptus pellita en una región de los Llanos Orientales de Colombia.  Métodos:  La recolección de los colémbolos se realizó en áreas con cobertura de pastos introducidos y áreas forestadas de diferentes edades, con trampas pitfall que contenían Propilenglicol al 40 % como preservante; durante la época seca y la época húmeda. Se comparó la riqueza efectiva de géneros y se explicó su composición en función de 14 variables ambientales y dasométricas mediante un análisis de redundancia (RDA).  Resultados:  La colembofauna estuvo compuesta por Entomobryomorpha (62 %), Poduromorpha (17 %) y Symphypleona (21.1 %) representados en 12 familias y 26 géneros. La riqueza efectiva de géneros fue significativamente mayor en los pastos que en las plantaciones de E. pellita, pero la abundancia no disminuye significativamente, con excepción de las plantaciones jóvenes durante la época seca. El ensamblaje de colémbolos observados en el área se relacionó principalmente con el desarrollo de cobertura forestal, la disponibilidad de materia orgánica alrededor de la trampa y el contenido de Nitrógeno en el suelo.  Conclusiones:  Las áreas forestadas permitieron un ensamblaje de colémbolos, menos diverso que las pasturas, pero compuesto tanto por especies adaptadas a áreas abiertas, como de las áreas naturales boscosas circundantes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Epiedaphic springtails participate in a wide variety of services linked to plant nutrient availability, water storage and regulation, soil stability and control of moisture and pH necessary for soil fertility. Therefore, epiedaphic springtails are sensitive to soil use change.  Objective:  To compare diversity of epiedaphic springtails in two types of introduced vegetation: pastures and forestations of Eucalyptus pellita in a region of the Colombian eastern plans.  Methods:  Springtails were collected from introduced pastures and young, middle and mature forested areas of E. pellita, using pitfall traps containing Propylene Glycol (40 %) as preservative, during one dry and one wet season. Alfa and Beta diversity were compared at genus level, and community composition was explained using a set of 14 environmental variables through a redundancy analysis (RDA).  Results:  Epiedaphic springtails were represented by Entomobryomorpha (62 %), Poduromorpha (17 %) and Symphypleona (21.1 %), 12 families and 26 genera. Effective number of Collembola genera was lower in plantations but abundance was different only in young plantations during dry season. The variables related to forest coverage, soil organic matter coverage and Nitrogen better explained the observed genera assemblage.  Conclusions:  Forest plantations allowed an assembly of springtails less diverse than in pastures; but comprised both types of genera, those proper of open areas and those from surrounding natural wooded areas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[bioindicators]]></kwd>
<kwd lng="en"><![CDATA[effective diversity]]></kwd>
<kwd lng="en"><![CDATA[forest plantations]]></kwd>
<kwd lng="en"><![CDATA[land use change]]></kwd>
<kwd lng="en"><![CDATA[soil fauna]]></kwd>
<kwd lng="es"><![CDATA[bioindicadores]]></kwd>
<kwd lng="es"><![CDATA[cambio del uso del suelo]]></kwd>
<kwd lng="es"><![CDATA[diversidad verdadera]]></kwd>
<kwd lng="es"><![CDATA[entomofauna de suelo]]></kwd>
<kwd lng="es"><![CDATA[plantaciones forestales]]></kwd>
</kwd-group>
</article-meta>
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