<?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>2007-4298</journal-id>
<journal-title><![CDATA[Botanical Sciences]]></journal-title>
<abbrev-journal-title><![CDATA[Bot. sci]]></abbrev-journal-title>
<issn>2007-4298</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Botánica de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-42982021000400771</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2785</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Pollination success in three tropical dry forest orchid species from Mexico: insights from floral display, visitation rates, and flower micromorphology]]></article-title>
<article-title xml:lang="es"><![CDATA[Éxito de la polinización en tres orquídeas del bosque tropical caducifolio de México: apreciaciones a partir del despliegue floral, tasas de visitas y micromorfología floral]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Molina]]></surname>
<given-names><![CDATA[Yazmín M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[Edgar J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Márquez-Guzmán]]></surname>
<given-names><![CDATA[Judith]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meave]]></surname>
<given-names><![CDATA[Jorge A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-García]]></surname>
<given-names><![CDATA[Eduardo A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Ecología y Recursos Naturales]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Biología Comparada]]></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>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>99</volume>
<numero>4</numero>
<fpage>771</fpage>
<lpage>790</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982021000400771&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982021000400771&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982021000400771&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  Despite long-lasting efforts to disentangle the drivers of orchid pollination, pollination success in tropical dry forest orchids remains largely unknown.  Questions and hypothesis:  How successful are pollination in three tropical dry forest orchids? How is pollination influenced by floral display and floral rewards (as suggested by floral micromorphology)? We hypothesized a positive effect of floral display on pollinia removal and deposition rates.  Studied species: Barkeria whartoniana (C. Schweinf.) Soto Arenas, Clowesia dodsoniana E. Aguirre, and Cyrtopodium macrobulbon (La Llave &amp; Lex.) G.A. Romero &amp; Carnevali.  Study site and dates:  Nizanda (Oaxaca), Mexico; flowering periods of 2013 and 2014.  Methods:  We calculated pollinia removal and deposition rates, identified floral visitors and analyzed flower microstructure to search for structures potentially producing rewards. Floral display was measured through number of open flowers, and number and length of inflorescences, and its effect on pollination success was assessed through linear modeling.  Results:  Pollinia removal rates were higher than deposition rates, and floral display was related to pollination success in C. dodsoniana only. Visitation rates were low for the three species and most visitors were not true pollinators. The three species possess potentially secreting structures, but for B. whartoniana and C. macrobulbon these rewards are likely part of the pollinator deception mechanism.  Conclusions: The generalized low pollination success implies the need for high population densities of both interacting parts. We emphasize the need for integrated evaluations of different aspects of the plant-pollinator interaction.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes:  A pesar de los numerosos estudios de polinización en orquídeas, se sabe muy poco del éxito de polinización en orquídeas del bosque tropical seco.  Preguntas e hipótesis:  ¿Qué tan eficiente es la polinización en tres especies de orquídeas del bosque tropical seco? ¿Cómo inciden el despliegue floral y las recompensas florales sobre la polinización? Se hipotetiza que el despliegue floral favorece las tasas de remoción y depósito de polinios.  Especies de estudio: Barkeria whartoniana (C. Schweinf.) Soto Arenas, Clowesia dodsoniana E. Aguirre y Cyrtopodium macrobulbon (La Llave &amp; Lex.) G.A. Romero &amp; Carnevali.  Sitio y años de estudio:  Nizanda (Oaxaca), México; floración de 2013 y 2014.  Métodos:  Calculamos tasas de remoción y depósito de polinios, identificamos visitantes florales y analizamos la microestructura floral. El despliegue floral se midió a través del número de flores abiertas, el número y la longitud de inflorescencias, y su efecto sobre el éxito de la polinización se evaluó mediante modelos lineales.  Resultados:  Las tasas de remoción de polinios fueron más altas que las de depósito, y el despliegue floral solo se relacionó con el éxito de la polinización en C. dodsoniana. Las tasas de visita fueron generalmene bajas y la mayoría de los visitantes no fueron verdaderos polinizadores. Aunque encontramos estructuras potencialmente secretoras, en B. whartoniana y C. macrobulbon las recompensas parecen ser parte de un mecanismo de engaño.  Conclusiones: El bajo éxito de polinización requiere densidades altas de plantas y polinizadores para mantener el sistema. Sugerimos evaluar integralmente diferentes aspectos de la interacción planta-polinizador.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Barkeria whartoniana]]></kwd>
<kwd lng="en"><![CDATA[Clowesia dodsoniana]]></kwd>
<kwd lng="en"><![CDATA[Cyrtopodium macrobulbon]]></kwd>
<kwd lng="en"><![CDATA[Euglossine bees]]></kwd>
<kwd lng="en"><![CDATA[floral display]]></kwd>
<kwd lng="en"><![CDATA[flower micromorphology]]></kwd>
<kwd lng="es"><![CDATA[Abejas euglosinas]]></kwd>
<kwd lng="es"><![CDATA[Barkeria whartoniana]]></kwd>
<kwd lng="es"><![CDATA[Clowesia dodsoniana]]></kwd>
<kwd lng="es"><![CDATA[Cyrtopodium macrobulbon]]></kwd>
<kwd lng="es"><![CDATA[despliegue floral]]></kwd>
<kwd lng="es"><![CDATA[micromorfología floral]]></kwd>
</kwd-group>
</article-meta>
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