<?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>1870-7459</journal-id>
<journal-title><![CDATA[Huitzil]]></journal-title>
<abbrev-journal-title><![CDATA[Huitzil]]></abbrev-journal-title>
<issn>1870-7459</issn>
<publisher>
<publisher-name><![CDATA[Sociedad para el Estudio y Conservación de las Aves en México, A.C. (CIPAMEX)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-74592020000100107</article-id>
<article-id pub-id-type="doi">10.28947/hrmo.2020.21.1.467</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Recursos florales usados por el colibrí esmeralda de Cozumel (Chlorostilbon forficatus)]]></article-title>
<article-title xml:lang="en"><![CDATA[Floral resources used by the Cozumel Emerald (Chlorostilbon forficatus)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Contreras]]></surname>
<given-names><![CDATA[Jonathan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Morales]]></surname>
<given-names><![CDATA[Miguel Angel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Márquez-Luna]]></surname>
<given-names><![CDATA[Ubaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,El Colegio de la Frontera Sur Departamento de Conservación de la Biodiversidad ]]></institution>
<addr-line><![CDATA[San Cristóbal de Las Casas Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Biología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Ayototl A.C.  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>21</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-74592020000100107&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-74592020000100107&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-74592020000100107&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Conocer la riqueza e identidad de los recursos florales utilizados por un polinizador permite identificar su grado de especialización trófica y su vulnerabilidad ante perturbaciones naturales y antropogénicas. Este conocimiento es fundamental en especies endémicas con una distribución geográfica altamente restringida. El colibrí esmeralda de Cozumel (Chlorostilbon forficatus), cuya distribución se restringe a la isla, es una de las 14 especies de colibríes endémicas de México. Esta especie ha sido poco estudiada y características sobre su biología se desconocen. En el presente estudio: (1) caracterizamos la dieta de C. forficatus, (2) identificamos si su dieta incluye especies de plantas exóticas a la isla y (3) evaluamos si su conducta de forrajeo (i.e., forrajear en una especie de planta nativa o exótica) está asociada a la distancia a zonas con influencia humana en la isla (asentamientos humanos y caminos). Registramos las interacciones colibrí-planta en 14 senderos ubicados en las selvas y manglares de la isla. Adicionalmente, incorporamos registros fotográficos de la plataforma Naturalista donde C. forficatus fue captado visitando flores. Finalmente, estimamos la distancia euclidiana entre el sitio donde se registraron los eventos de forrajeo y la zona de influencia humana más cercana. Los resultados muestran que el colibrí esmeralda de Cozumel es un visitante floral generalista. Su dieta está compuesta del néctar de al menos 19 especies vegetales, de las cuales siete son exóticas a la isla. La distancia a las zonas de influencia humana está asociada significativamente a la conducta de forrajeo de C. forficatus, lo que implica que dentro y cerca de los asentamientos humanos y caminos existe una mayor probabilidad de que C. forficatus se alimente de una especie exótica. Proponemos que se realicen estudios que evalúen la importancia de las especies vegetales exóticas en la dieta de C. forficatus, ya que su establecimiento y propagación podría tener repercusiones ecológicas en el ecosistema insular.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Knowing the richness and identity of floral resources used by a pollinator delineates its degree of trophic specialization and its vulnerability to natural and anthropogenic disturbances. This understanding is fundamental in the case of endemic species with a highly restricted geographical distribution. The Cozumel Emerald (Chlorostilbon forficatus), restricted to the island, is one of the 14 endemic species of hummingbirds in Mexico. This species has been poorly studied and many aspects of its biology are still unknown. In this study we: (1) described the diet of C. forficatus, (2) assessed if its diet includes exotic plant species, and (3) assessed whether its foraging behavior (i. e., to feed on native or exotic species) is associated with areas of human influence on Cozumel Island (human settlements and roads). We recorded the plant-hummingbird interaction in 14 transects surveyed in the tropical forests and mangroves of the island. Additionally, we included photographic records obtained from the Naturalista platform where C. forficatus was recorded feeding on flowers. Finally, we estimated the Euclidian distance between the site where the foraging events were recorded and the closest area of human influence. Our study shows that the Cozumel Emerald is a generalist floral visitor. Its diet is composed of the nectar of at least 19 plant species, seven of which are exotic to the island. Distance to the areas of human influence is significantly associated with the foraging behavior of C. forficatus. In or near human settlements and roads there is a higher probability that C. forficatus feeds on an exotic species. We propose to carry out studies to assess the role of exotic plant species in the diet of C. forficatus because their establishment and spread might have unexpected ecological effects on the insular ecosystem.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[asentamiento humano]]></kwd>
<kwd lng="es"><![CDATA[colibrí endémico]]></kwd>
<kwd lng="es"><![CDATA[dieta]]></kwd>
<kwd lng="es"><![CDATA[especies exóticas]]></kwd>
<kwd lng="es"><![CDATA[Trochilidae]]></kwd>
<kwd lng="en"><![CDATA[diet]]></kwd>
<kwd lng="en"><![CDATA[endemic hummingbird]]></kwd>
<kwd lng="en"><![CDATA[exotic species]]></kwd>
<kwd lng="en"><![CDATA[human settlement]]></kwd>
<kwd lng="en"><![CDATA[Trochilidae]]></kwd>
</kwd-group>
</article-meta>
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</back>
</article>
