<?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>S1659-42662015000200295</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[¿Afectan las aves la germinación del arbusto Pyracantha atalantoides (Rosaceae)?]]></article-title>
<article-title xml:lang="en"><![CDATA[Does ingestion by birds affect Pyracantha atalantoides (Rosaceae) seed germination?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dellafiore]]></surname>
<given-names><![CDATA[Claudia Marisel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosa]]></surname>
<given-names><![CDATA[María José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Scilingo]]></surname>
<given-names><![CDATA[Verónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Río Cuarto  ]]></institution>
<addr-line><![CDATA[Córdoba ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Río Cuarto  ]]></institution>
<addr-line><![CDATA[Córdoba ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Río Cuarto  ]]></institution>
<addr-line><![CDATA[Córdoba ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>7</volume>
<numero>2</numero>
<fpage>295</fpage>
<lpage>299</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1659-42662015000200295&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1659-42662015000200295&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1659-42662015000200295&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las aves juegan un rol fundamental en muchos ecosistemas ya que a través de mecanismos como la endozoocoria pueden dispersar una gran variedad de frutos y semillas. La especie Pyracantha atalantoides ha invadido los bosques autóctonos de la provincia de Córdoba y las aves han sido consideradas como responsables de su propagación. Sin embargo, el hecho de que las aves dispersen las semillas no implica necesariamente que dicha dispersión sea efectiva ya que el paso a través del tracto digestivo puede afectar negativamente su germinación. El objetivo del presente trabajo fue conocer si el paso de las semillas de P. atalantoide a través del tracto digestivo de las aves afecta el poder germinativo, la velocidad, inicio y tasa de germinación. Para ello se comparó la germinación de semillas extraídas directamente de los frutos y de las excretas de las aves. De acuerdo con nuestros resultados se observó que el poder germinativo fue similar entre las semillas de los frutos y de las excretas. Sin embargo, el paso de las semillas a través del tracto digestivo disminuyó la velocidad, el inicio y tasa de germinación. Nuestro resultados apoyan la idea de que la ventaja de P. atalantoides al ser consumida por las aves radica más en el hecho de poder ser dispersadas lejos de la planta madre y de llegar a nuevas áreas abiertas a la colonización que por el tratamiento que sufren las semillas al pasar a través del tracto digestivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[AbstractBirds play a fundamental role in many ecosystems because they spread a variety of fruits and seeds through endozoochory. Pyracantha are very attractive for birds, which have contributed to spread this species in natural ecosystems. However, dispersion only is effective if seeds can germinate after passage through of bird digestive tract. Our goal was to assess if birds affect the start, speed and germination rate of P. atalantoides. Germination was compared between seeds from fruit and seed from bird feces. The germination percentage was similar between fruit and feces seeds. However, the seeds pass through the digestive tract delay speed, start and rate of germination. Our results support the idea that the advantage of being consumed by birds may lie more in seed movement away from the parent plant than in any seed treatment itself.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Pyracantha atalantoides]]></kwd>
<kwd lng="es"><![CDATA[germinación]]></kwd>
<kwd lng="es"><![CDATA[viabilidad]]></kwd>
<kwd lng="es"><![CDATA[tasa de germinación]]></kwd>
<kwd lng="es"><![CDATA[aves]]></kwd>
<kwd lng="en"><![CDATA[Pyracantha atalantoides]]></kwd>
<kwd lng="en"><![CDATA[germination]]></kwd>
<kwd lng="en"><![CDATA[viability]]></kwd>
<kwd lng="en"><![CDATA[germination rate]]></kwd>
<kwd lng="en"><![CDATA[bird]]></kwd>
</kwd-group>
</article-meta>
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