<?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>S1870-74592023000200103</article-id>
<article-id pub-id-type="doi">10.28947/hrmo.2023.24.2.752</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Densidad poblacional y características del hábitat del chorlo llanero (Charadrius montanus) en sus sitios invernales en el noreste de México]]></article-title>
<article-title xml:lang="en"><![CDATA[Population density and characteristics of winter sites of the Mountain Plover (Charadrius montanus) in northeastern Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-Ayma]]></surname>
<given-names><![CDATA[Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cavazos-Alvarez]]></surname>
<given-names><![CDATA[Amanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guzmán-Velasco]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olalla-Kerstupp]]></surname>
<given-names><![CDATA[Alina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rubio-Cisneros]]></surname>
<given-names><![CDATA[Nadia Tamara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ham-Dueñas]]></surname>
<given-names><![CDATA[José Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Rojas]]></surname>
<given-names><![CDATA[José I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Ciencias Biológicas Laboratorio de Biología de la Conservación y Desarrollo Sustentable]]></institution>
<addr-line><![CDATA[San Nicolás de los Garza Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-74592023000200103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-74592023000200103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-74592023000200103&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen. El chorlo llanero (Charadrius montanus) habita principalmente los pastizales bajos de Norteamérica, donde cuyas poblaciones han disminuido debido a la pérdida de su hábitat. Actualmente, existe poca información sobre su tamaño poblacional y el hábitat en sus sitios de invernada. Entre 2007 y 2012, estimamos la densidad poblacional del chorlo llanero y caracterizamos el hábitat en sus sitios de invernada en el noreste de México. Estimamos la densidad de chorlos mediante el método de distancia perpendicular en 44 transectos de 2 km de largo. Caracterizamos el hábitat de forrajeo y de pernoctación, evaluando altura, cobertura vegetal y el valor de importancia de herbáceas y arbustos en 60 cuadrantes de 1 m2 y 25 m2, respectivamente. La densidad de chorlos llaneros declinó durante las cinco temporadas, con mayor densidad de 0.35 ind/ha en 2008-2009, empezando a disminuir en la tercera temporada con 0.26 ind/ha en 2010-2011, y registrando la más baja densidad de 0.15 ind/ha en 2011-2012. La cobertura vegetal con estratos herbáceo y arbustivo fue del 62% para los sitos de forrajeo y 38% en dormideros, registrando los pastos Aristida haradii, Bouteloua karwinskii y B. dactyloides y el arbusto Atriplex canescens con mayor cobertura. Nuestros resultados indican una disminución poblacional persistente del chorlo llanero en sus sitios de invernada en el noreste mexicano. Basados en nuestra evaluación del hábitat, las futuras estrategias de conservación del chorlo llanero deben asegurar la protección de pastizales con alta diversidad de plantas y alta cobertura vegetal en los sitos de invernación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract. The Mountain Plover (Charadrius montanus) primarily inhabits lowland grasslands of North America, where its populations have decreased due to habitat loss. Currently, little information exists on the species&#8217; population size and habitat at wintering sites. Between 2007 and 2012, we estimated population density of the Mountain Plover and characterized habitat at its wintering sites in northeastern Mexico. We estimated plover density using the perpendicular distance method along 44 2-km length transects. We characterized foraging and roosting habitat by evaluating the height, vegetation cover, and importance value of herbaceous and shrubby plants in 60 quadrants of 1 m2 and 25 m2, respectively. Mountain Plover density declined over the five seasons, with highest density of 0.35 ind/ha in 2008-2009, beginning to decrease during the third season with 0.26 ind/ha in 2010-2011, and recording the lowest density of 0.15 ind/ha in 2011-2012. Vegetation cover with herbaceous and shrubby layers was 62% in foraging sites and 38% in roosting sites, with grasses of Aristida haradii, Bouteloua karwinskii, B. dactyloides, and the shrub Atriplex canescens providing greatest cover. Our results indicate a persistent population decline of the Mountain Plover at its wintering sites in northeastern Mexico. Based on our habitat assessment, future conservation strategies for the Mountain Plover should ensure the protection of grasslands with high plant diversity and high vegetation cover.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Aves playeras]]></kwd>
<kwd lng="es"><![CDATA[estimación densidad con Distance]]></kwd>
<kwd lng="es"><![CDATA[estimación poblacional]]></kwd>
<kwd lng="es"><![CDATA[uso de hábitat de invierno]]></kwd>
<kwd lng="es"><![CDATA[pastizales]]></kwd>
<kwd lng="en"><![CDATA[Shorebirds]]></kwd>
<kwd lng="en"><![CDATA[Distance density estimates]]></kwd>
<kwd lng="en"><![CDATA[winter habitat use]]></kwd>
<kwd lng="en"><![CDATA[grasslands]]></kwd>
<kwd lng="en"><![CDATA[population estimate]]></kwd>
</kwd-group>
</article-meta>
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