<?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>S2007-42982021000100028</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2515</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Las flores de Myrtillocactus geometrizans (Cactaceae): morfología y artrópodos visitadores en un gradiente geográfico]]></article-title>
<article-title xml:lang="en"><![CDATA[The flowers of Myrtillocactus geometrizans (Cactaceae): morphology and arthropod visitors in a geographical gradient]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Islas-Barrios]]></surname>
<given-names><![CDATA[Yanin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrato-Díaz]]></surname>
<given-names><![CDATA[Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zavala-Hurtado]]></surname>
<given-names><![CDATA[J. Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Octavio-Aguilar]]></surname>
<given-names><![CDATA[Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Callejas-Chavero]]></surname>
<given-names><![CDATA[Alicia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cornejo-Romero]]></surname>
<given-names><![CDATA[Amelia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Metropolitana División de Ciencias Biológicas y de la Salud ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Metropolitana División de Ciencias Biológicas y de la Salud Departamento de Hidrobiología]]></institution>
<addr-line><![CDATA[Iztapalapa ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma Metropolitana División de Ciencias Biológicas y de la Salud Departamento de Biología]]></institution>
<addr-line><![CDATA[Iztapalapa ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo Centro de Investigaciones Biológicas Laboratorio de Genética]]></institution>
<addr-line><![CDATA[ Hidalgo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas Departamento de Botánica]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>99</volume>
<numero>1</numero>
<fpage>28</fpage>
<lpage>42</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982021000100028&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982021000100028&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982021000100028&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes:  Las flores son elementos reproductivos costosos que presentan balances costo/beneficio en sus estructuras. La diversidad de éstas se ha atribuido a factores bióticos como las interacciones con sus visitadores florales y abióticos como las características del ambiente.  Preguntas:  ¿La morfología floral de M. geometrizans está relacionada con los tipos de vegetación? ¿La comunidad de artrópodos visitadores florales se relaciona con la morfología floral y/o el tipo de vegetación? ¿La morfología floral y la comunidad de artrópodos tendrán relación con la perturbación del ambiente?  Especie de estudio: Myrtillocactus geometrizans (Mart. ex Pfeiff.) Console  Sitio de estudio y fecha:  Selva Baja Caducifolia y Matorral Xerófilo en las Reservas de la Biosfera: Tehuacán-Cuicatlán, Puebla y Barranca de Metztitlán, Hidalgo. México. Marzo 2017.  Métodos:  En los cuatro sitios (dos días por sitio), durante el pico de floración de M. geometrizans, se calculó el índice de disturbio, se recolectaron 30 flores (N = 120) y los artrópodos visitadores florales. Se determinaron la morfología floral y los artrópodos.  Resultados:  Los sitios de la Barranca de Metztitlán presentaron el mayor índice de disturbio, las flores más chicas y mayor número de estructuras florales. Los visitadores florales fueron más abundantes en los matorrales xerófilos, particularmente en el sitio más perturbado donde el grupo funcional más relevante fue el de los polinizadores.  Conclusiones:  Se encontraron diferencias significativas en la morfología floral de M. geometrizans relacionadas a los tipos de vegetación y ubicación geográfica. Se reportó una compensación entre tamaño y producción de estructuras florales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Flowers are expensive reproductive elements that have cost/benefit balances in their characters. The diversity of the floral structures has been attributed to biotic factors such as the interactions with their floral visitors and abiotic factors such as the characteristics of the environment.  Question: Is there a relationship between the floral morphology of M. geometrizans and the vegetation type? Is the community of arthropod floral visitors associated with floral morphology and/or the vegetation type? Will the floral morphology and the community of arthropod floral visitors be associated with the disturbance level of the environment?  Studied species: Myrtillocactus geometrizans (Mart. ex Pfeiff.) Console  Study site and dates: Tropical deciduous forest and xerophilous scrub in the Tehuacán-Cuicatlán Biosphere Reserve, Puebla, and in the Barranca de Metztitlán Biosphere Reserve, Hidalgo, Mexico. March 2017.  Methods: At the four sites (two days per site), during the flowering peak of M. geometrizans, the disturbance index was calculated, 30 flowers (N = 120) and the arthropods floral visitors were collected. Floral morphology and arthropods were determined.  Results: Barranca de Metztitlán sites showed the highest disturbance index, the smallest flowers, and the highest production of floral structures. Flower visitors were more abundant in xerophilous scrubs, particularly in the most disturbed site, where the most relevant functional group was the pollinators.  Conclusions: Significant differences were found in the floral morphology of M. geometrizans related to vegetation types and geographic location. A trade-off between the size and production of floral characters was reported.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Disturbio antrópico]]></kwd>
<kwd lng="es"><![CDATA[garambullo]]></kwd>
<kwd lng="es"><![CDATA[grupos funcionales]]></kwd>
<kwd lng="es"><![CDATA[matorral xerófilo]]></kwd>
<kwd lng="es"><![CDATA[selva baja caducifolia]]></kwd>
<kwd lng="en"><![CDATA[Anthropogenic disturbance]]></kwd>
<kwd lng="en"><![CDATA[garambullo]]></kwd>
<kwd lng="en"><![CDATA[functional groups]]></kwd>
<kwd lng="en"><![CDATA[tropical deciduous forest]]></kwd>
<kwd lng="en"><![CDATA[xerophilous scrub]]></kwd>
</kwd-group>
</article-meta>
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