<?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>0065-1737</journal-id>
<journal-title><![CDATA[Acta zoológica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Zool. Mex]]></abbrev-journal-title>
<issn>0065-1737</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Ecología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0065-17372017000200169</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Actividad de la guacamaya escarlata Ara macao cyanoptera (Psittaciformes: Psittacidae) y características estructurales de su hábitat en Marqués de Comillas, Chiapas]]></article-title>
<article-title xml:lang="en"><![CDATA[Activity to the scarlet macaw Ara macao cyanoptera (Psittaciformes: Psittacidae) and habitat structure characteristics in Marqués de Comillas, Chiapas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Cruz]]></surname>
<given-names><![CDATA[Estefanía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Gutiérrez]]></surname>
<given-names><![CDATA[Facundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdez-Hernández]]></surname>
<given-names><![CDATA[Juan Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>33</volume>
<numero>2</numero>
<fpage>169</fpage>
<lpage>180</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0065-17372017000200169&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0065-17372017000200169&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0065-17372017000200169&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Ara macao cyanoptera es una especie en situación prioritaria de conservación según la lista roja de la IUCN (2014), pero las investigaciones sobre su hábitat son escasas. Por este motivo se estudiaron las características estructurales de la vegetación arbórea en los sitios que utiliza Ara macao cyanoptera para anidación (An), alimentación y descanso (AyD) y dormitorio (Do) en el Ejido Reforma Agraria, Marqués de Comillas, Chiapas. Para ello se identificaron árboles focales (AF) mediante recorridos diurnos y vespertinos con ayuda de guías comunitarios. Tomando como centro estos AF se establecieron 17 unidades de muestreo (UM) circulares de 1000 m2: nueve UM en sitios An, seis en AyD, y dos en Do. Se calcularon los índices de valor de importancia (IVI) y valor forestal (IVF), diversidad de Shannon-Wiener (H´) y semejanza florística. Se registraron 46 especies arbóreas, de 44 géneros y 22 familias, de las cuales 15 especies, 15 géneros y nueve familias fueron aprovechadas por A. macao cyanoptera para sus actividades. Esta especie anida en árboles de Ceiba pentandra (IVI=45.9, IVF=45.6), Ficus cotinifolia (IVI=30.2, IVF=27.5) y Vatairea lundellii (IVI=15.5, IVF=12.1); durante la época no reproductiva el 80% de su dieta se basa en el consumo de frutos y semillas de Spondias mombin (IVI=22.1, IVF=25.7), duerme en árboles de Acacia usumacintensis (IVI=75.3, IVF=124) y V. lundellii (IVI=43.4, IVF=49.7). A. macao cyanoptera utiliza áreas silvopastoriles con semejanza florística de 29 a 75%, cercanas a zonas fluviales, con una densidad arbórea de 260 individuos ha-1. Siendo la diversidad arbórea (H´= 3.1) un factor determinante en la disponibilidad de recurso alimenticio para esta especie.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Ara macao cyanoptera is in the Red List of Threatened Species (IUCN, 2014), however research on its habitat is scarce. Structural characteristics of tree vegetation were studied in locations used by A. macao cyanoptera for nesting (An), feeding-resting (AyD), and sleeping (Do) in the Ejido Reforma Agraria, Marqués de Comillas, Chiapas. Focal trees were identified (AF) by hikes at morning and evening with the help of community guides. These AF were the center of 17 circular sampling units (UM) measuring 1000 m2: nine UM in locations An, six UM in locations AyD, and two UM in locations Do. Structural and diversity indices were calculated: importance value (IVI), forest value (IVF), Shannon-Wiener (H´) and floristic similarity. Forty six tree species, belonging to 44 genera and 22 families, were recorded; 15 species out of the total, belonging to 15 genera and nine families, were used by A. macao cyanoptera for nesting, feeding-resting, and sleeping. This species nested on Ceiba pentandra (IVI = 45.9, IVF = 45.6), Ficus cotinifolia (IVI = 30.2, IVF = 27.5) and Vatairea lundellii (IVI = 15.5, IVF = 12.1); during the non-reproductive season, A. macao cyanoptera slept on Acacia usumacintensis (IVI = 75.3, IVF = 124) and V. lundellii (IVI = 43.4, IVF = 49.7), while fruits and seeds from Spondias mombin (IVI = 22.1, IVF = 25.7) were 80% of its food. A. macao cyanoptera was found on silvo-pastures closed to fluvial zones which hold a floristic similarity between 29 and 75% with a density of 260 trees ha-1. Tree diversity (H´ = 3.1) is a support factor on the availability of food for this threatened bird species.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Vegetación arbórea]]></kwd>
<kwd lng="es"><![CDATA[anidación]]></kwd>
<kwd lng="es"><![CDATA[alimentación y descanso]]></kwd>
<kwd lng="es"><![CDATA[dormitorio]]></kwd>
<kwd lng="es"><![CDATA[Índices estructurales y de diversidad]]></kwd>
<kwd lng="es"><![CDATA[áreas silvopastoriles]]></kwd>
<kwd lng="en"><![CDATA[Tree vegetation]]></kwd>
<kwd lng="en"><![CDATA[nesting]]></kwd>
<kwd lng="en"><![CDATA[feeding-resting]]></kwd>
<kwd lng="en"><![CDATA[sleeping]]></kwd>
<kwd lng="en"><![CDATA[structural and diversity indices]]></kwd>
<kwd lng="en"><![CDATA[silvo-pastures]]></kwd>
</kwd-group>
</article-meta>
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