<?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>S0034-77442018000100204</article-id>
<article-id pub-id-type="doi">10.15517/rbt.v66i1.27783</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Eficiencia de trampas de caída y suficiencia taxonómica en comunidades de arañas (Araneae) epigeas en tres ecorregiones del noroeste argentino]]></article-title>
<article-title xml:lang="en"><![CDATA[Efficiency of pitfall traps and taxonomic sufficiency for epigeal spider communities (Araneae) in three ecoregions of northwestern Argentina]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz]]></surname>
<given-names><![CDATA[Ivanna Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Victor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Reyes]]></surname>
<given-names><![CDATA[Andrea Ximena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corronca]]></surname>
<given-names><![CDATA[José Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Salta  ]]></institution>
<addr-line><![CDATA[ Salta]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,IEBI-UNSa  ]]></institution>
<addr-line><![CDATA[ Salta]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2018</year>
</pub-date>
<volume>66</volume>
<numero>1</numero>
<fpage>204</fpage>
<lpage>217</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0034-77442018000100204&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0034-77442018000100204&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0034-77442018000100204&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El incremento de la degradación de los hábitats naturales ha fortalecido la necesidad de conocer y evaluar los patrones de biodiversidad; siendo los inventarios biológicos y la suficiencia taxonómica herramientas que permiten describir y monitorear la diversidad en cortos períodos de tiempo. El estudio de la araneofauna en el norte Argentino es escaso en particular en ecorregiones donde se considera prioritario conservar sus ambientes. Las arañas son utilizadas como taxón indicador para comparar patrones de biodiversidad, donde el estudio de las familias y de los gremios puede potencialmente servir como sustitutos ecológicos de las especies dando indicación del uso del hábitat y de las estrategias de forrajeo. En este estudio, analizamos la diversidad alfa y beta de las comunidades de arañas epigeas en diferentes ecorregiones de la provincia de Salta (Chaco Serrano, Monte de Sierras y Bolsones, y Puna) utilizando trampas de caída y muestreos en las cuatro estaciones del año; y testeamos si el nivel taxonómico familia, en el caso de las arañas, puede actuar como potencial sustituto del nivel especie en las evaluaciones rápidas de biodiversidad. Para ello, en cada ecorregión seleccionamos tres sitios ampliamente separados que fueron muestreados durante el otoño, invierno, primavera y verano del 2005-2007. En cada sitio se colocaron 10 trampas de caída separadas por 10 m a lo largo de una transecta lineal y con una actividad de 7 días por estación. Se recolectaron 886 arañas de 100 especies/morfoespecies correspondientes a 19 familias. La ecorregión Chaco (S = 56, N = 495) reportó la mayor riqueza de especies y abundancia comparada con el Monte (S = 44, N = 262) y la Puna (S = 23, N = 129). La completitud del inventario obtenido para cada ecorregión fue completa, superando el 70 %. La diversidad alfa y beta evidenciaron que las comunidades ecorregionales de arañas fueron diferentes. Las estaciones más frías (otoño e invierno) demostraron ser claves a la hora de evaluar la diversidad de arañas en las ecorregiones, aportando a la diversidad regional conjuntamente con la diversidad de las estaciones cálidas (primavera y verano). Además, el nivel taxonómico de familia evidenció reflejar, de igual manera que el nivel especie, los cambios en la diversidad alfa y beta. El uso de trampas de caída en todas las estaciones del año y el reconocimiento de las familias de arañas para la fauna epigea son de gran utilidad para realizar futuras evaluaciones rápidas de biodiversidad en el área en estudio; permitiendo así incorporar este grupo taxonómico en los estudios de monitoreo de biodiversidad que se lleven a cabo en estas ecorregiones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The increased degradation of natural habitats has strengthened the need to know and assess biodiversity patterns. Particularly, the study of the spider fauna in the North of Argentina is scarce in ecoregions with priority interests of conservation. Generally, spiders are used as indicators to compare biodiversity patterns, and here we tested whether the spider family-level can act as a substitute of the species-level in biodiversity rapid assessments. For this, we analyzed the alpha and beta diversity of the epigeal spider communities in three separate sites of three ecoregions of Salta province (Chaco Serrano, Monte de Sierras and Bolsones, and Puna), during the fall, winter, spring and summer of 2005-2007. In each site, 10 pitfall traps, located along a linear transect and 10 meters apart, were placed for seven days per season of continuous activity. A total of 886 spiders were collected from 100 species/morphospecies of 19 families. The completeness of the inventory obtained for each ecoregion surpassed 70 %. The Chaco ecoregion (S = 56, N = 495) reported the highest species richness and abundance compared to Monte (S = 44, N = 262) and Puna (S = 23, N = 129). Alpha and beta diversity showed that ecoregional spider communities were different, sharing few species (0.7 %). The Chaco reported a high dissimilarity of its assemblage with respect to the other ecoregions. The colder seasons (autumn and winter) are important in assessing the diversity of spiders, contributing to regional diversity in conjunction with the diversity of warm seasons (spring and summer). Four guilds were reported (ground hunters, specialists, other hunters and ambush hunters), but the latter was absent in Monte, and the specialists dominated Chaco. Zodariidae was dominant in Chaco Serrano, where Leprolochus birabeni is an indicator of native environments. On the other hand, Lycosidae, Philodromidae, Anyphaenidae and Oonopidae were important for Monte and Puna. Year-round pitfall traps and identification of epigeal spider families are useful for biodiversity rapid assessments in this area. Like the species-level, the taxonomic family-level evidenced changes in alpha and beta diversity. This allows the inclusion of this taxonomic group for future biodiversity monitoring. Rev. Biol. Trop. 66(1): 204-217. Epub 2018 March 01.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[diversidad de arañas]]></kwd>
<kwd lng="es"><![CDATA[trampas de caída]]></kwd>
<kwd lng="es"><![CDATA[ecorregión]]></kwd>
<kwd lng="es"><![CDATA[estacionalidad]]></kwd>
<kwd lng="es"><![CDATA[suficiencia taxonómica]]></kwd>
<kwd lng="en"><![CDATA[spider´s diversity]]></kwd>
<kwd lng="en"><![CDATA[pitfall traps]]></kwd>
<kwd lng="en"><![CDATA[ecoregions]]></kwd>
<kwd lng="en"><![CDATA[seasonality]]></kwd>
<kwd lng="en"><![CDATA[taxonomic sufficiency]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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