<?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>S1870-34532017000300654</article-id>
<article-id pub-id-type="doi">10.1016/j.rmb.2017.06.011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diversidad de arañas del suelo y su relación con ambientes heterogéneos del Parque General San Martín, Entre Ríos, Argentina]]></article-title>
<article-title xml:lang="en"><![CDATA[Diversity of spiders of soil and their relationship with heterogeneous environments from the Parque General San Martín, Entre Ríos, Argentina]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almada]]></surname>
<given-names><![CDATA[Melina Soledad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sarquis]]></surname>
<given-names><![CDATA[Juan Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Consejo Nacional de Investigaciones Científicas y Técnicas  ]]></institution>
<addr-line><![CDATA[Santa Fe ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional del Litoral  ]]></institution>
<addr-line><![CDATA[Santa Fe ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>88</volume>
<numero>3</numero>
<fpage>654</fpage>
<lpage>663</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532017000300654&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532017000300654&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532017000300654&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Se analizó la comunidad de arañas asociada al estrato de suelo en diferentes ambientes y su relación con la heterogeneidad ambiental presente en el Parque General San Martín. Se utilizaron trampas de caídas para recolectar a las arañas en 3 ambientes representativos, durante 2 estaciones del año (2011-2012): bosque nativo (BN), bosque exótico (BE) y pajonal (P), caracterizado por plantas graminiformes. Se recolectaron 1,398 arañas (26 familias y 120 especies/morfoespecies). El P registró la mayor abundancia de arañas (678 individuos), seguido del BE (501) y el BN (219), mientras que la riqueza de especies fue mayor en el BN. Los índices de diversidad mostraron diferencias estadísticamente significativas entre los ambientes. Las variables de heterogeneidad reflejaron que los BN son los más heterogéneos, disminuyendo hacia el ambiente P y BE como el más homogéneo. Se registraron 8 gremios. Todos los gremios estuvieron presentes en el BN; no se registraron las tejedoras de telas irregulares en el BE, al igual que las cazadoras deambuladoras en el P. Este trabajo constituye la primera aproximación sobre la importancia y los cambios en la diversidad de arañas de suelo en ambientes con diferentes grados de heterogeneidad, producto del avance de especies exóticas en un parque de Entre Ríos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The spider community associated to the ground in different environments and its relationship with environmental heterogeneity in the Parque General San Martín was analyzed. Spiders were captured with pit-fall traps in 3 representative environments of the park, for 2 seasons (2011-2012): native forest (BN), exotic forest (BE) and grasslands (P), characterized by graminiform plants. 1,398 spiders were collected (26 families and 120 species/morphospecies). The highest spider abundance was registered in P (678 individuals), followed by BE (501) and BN (219), while species richness was higher in BN. Diversity indexes showed statistically significant differences among the environments sampled. Heterogeneity variables used in this study showed a higher heterogeneity in BN, followed by P and BE as the most homogenous. Eight guilds were registered. All of the guilds were present in BN, while the sensing web weavers were not recorded in the BE, as well as the ambush hunters in P. This work constitutes the first approach about the importance and changes undergone by the diversity of ground spiders in environments with different degrees of heterogeneity, as a result of the advance of exotic species in a park from Entre Ríos.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Araneofauna]]></kwd>
<kwd lng="es"><![CDATA[Bosque exótico]]></kwd>
<kwd lng="es"><![CDATA[Áreas protegidas]]></kwd>
<kwd lng="es"><![CDATA[Bosque nativo]]></kwd>
<kwd lng="es"><![CDATA[Conservación de la biodiversidad]]></kwd>
<kwd lng="en"><![CDATA[Arachnofauna]]></kwd>
<kwd lng="en"><![CDATA[Exotic forest]]></kwd>
<kwd lng="en"><![CDATA[Protected areas]]></kwd>
<kwd lng="en"><![CDATA[Native forest]]></kwd>
<kwd lng="en"><![CDATA[Conservation of biodiversity]]></kwd>
</kwd-group>
</article-meta>
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