<?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>S1870-74592020000100202</article-id>
<article-id pub-id-type="doi">10.28947/hrmo.2020.21.1.476</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Primer registro de anidación de la tángara azul gris (Thraupis episcopus) en Guerrero, México]]></article-title>
<article-title xml:lang="en"><![CDATA[First nesting record of the Blue-gray Tanager (Thraupis episcopus) in Guerrero, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blancas-Calva]]></surname>
<given-names><![CDATA[Epifanio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Gutiérrez]]></surname>
<given-names><![CDATA[Santiago Baltazar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-Rodríguez]]></surname>
<given-names><![CDATA[Antonio Isaín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Guerrero Área de Ciencias Naturales Instituto de Investigación Científica]]></institution>
<addr-line><![CDATA[Chilpancingo Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Zihuatanejo  ]]></institution>
<addr-line><![CDATA[Zihuatanejo Guerrero]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento El Hombre y su Ambiente ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</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=S1870-74592020000100202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-74592020000100202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-74592020000100202&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La reproducción es un parámetro poblacional útil en el reconocimiento del área de distribución de las especies. Definida el área de distribución stricto sensu como el espacio donde la especie vive e interactúa de forma no efímera con todos los componentes del ecosistema. La tángara azul gris es una especie residente común de la región Neotropical. El área de distribución histórica de la especie en México, con base en registros de la década de 1970, fue en Veracruz. En los últimos 50 años la especie ha experimentado un constante incremento en su área de distribución. Actualmente se le registra en ambas vertientes; de Nuevo León a Yucatán y desde Guerrero hasta Chiapas. Los primeros registros de la tángara azul gris en Guerrero datan del año 2006, presencia que ha sido corroborada, en las planicies costeras del sureste y centro del estado, con registros confiables de los años 2016 y 2018. Sin embargo, se carecía de información sobre aspectos biológico-reproductivos de la especie en Guerrero. En esta comunicación informamos del primer registro de anidación de la tángara azul gris (Thraupis episcopus) en Guerrero, como una evidencia incontrovertible del establecimiento de la especie en el estado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Reproduction is a useful population parameter in the recognition of the distribution area of a viable species. The stricto sensu distribution area is defined as the space where the species lives and interacts non-ephemerally with all components of the ecosystem. The Blue-gray Tanager is a common species of the Neotropical region. The historical distribution area of the species in Mexico, based on records from the 1970s, located in the state of Veracruz. However, the species has experienced a constant increase in its distribution area during the last 50 years, such that it is currently present on both slopes from Nuevo Leon to the Yucatan Peninsula and from Guerrero to Chiapas. The first records of the Blue-gray Tanager in Guerrero date back to 2006. Its presence has been verified, in the coastal plains of the southeast and the center of the state, with reliable records in 2016 and 2018. However, information on the reproductive aspects of the species in Guerrero was lacking. In this communication we report the first nesting record of the Blue-gray Tanager (Thraupis episcopus) in Guerrero, as incontrovertible evidence of the establishment of the species in the state with a reproductively viable population.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[avifauna de Guerrero]]></kwd>
<kwd lng="es"><![CDATA[primer registro]]></kwd>
<kwd lng="es"><![CDATA[reproducción]]></kwd>
<kwd lng="es"><![CDATA[Zihuatanejo]]></kwd>
<kwd lng="en"><![CDATA[birds of Guerrero]]></kwd>
<kwd lng="en"><![CDATA[first record]]></kwd>
<kwd lng="en"><![CDATA[reproduction]]></kwd>
<kwd lng="en"><![CDATA[Zihuatanejo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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