<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532025000100302</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2025.96.5459</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The sounds of love: acoustic repertoire of Andean bear, Tremarctos ornatus (Carnivora: Ursidae), mating in the wild]]></article-title>
<article-title xml:lang="es"><![CDATA[Sonidos amor-osos: repertorio acústico del oso andino Tremarctos ornatus (Carnivora: Ursidae) durante el apareamiento en vida silvestre]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes]]></surname>
<given-names><![CDATA[Adriana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Amaya]]></surname>
<given-names><![CDATA[Nicolás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velazco]]></surname>
<given-names><![CDATA[Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meneses]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortés]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arenas-Rodríguez]]></surname>
<given-names><![CDATA[Katherine]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[Edward]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velez-Liendo]]></surname>
<given-names><![CDATA[Ximena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Henao]]></surname>
<given-names><![CDATA[Angela M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Investigación de Recursos Biológicos Alexander von Humboldt Centro de Colecciones y Gestión de Especies Colecciones Biológicas]]></institution>
<addr-line><![CDATA[Villa de Leyva ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Fundación para la Investigación, Conservación y Protección del Oso Andino  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Grupo de monitoreo comunitario Serankwa  ]]></institution>
<addr-line><![CDATA[San Agustín Huila]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Corporación Autónoma Regional del Alto Magdalena  ]]></institution>
<addr-line><![CDATA[ Huila]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Corporación Autónoma Regional de Cundinamarca  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,University of Oxford Department of Biology Wildlife Conservation Research Unit]]></institution>
<addr-line><![CDATA[Tubney Oxfordshire]]></addr-line>
<country>United Kingdom</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>96</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532025000100302&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532025000100302&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532025000100302&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Understanding animal behavior is crucial for effective mammal conservation efforts; however, limited knowledge exists regarding the behavioral patterns of many species, particularly in wild conditions. The Andean bear (Tremarctos ornatus) is the only ursid distributed in South America and is categorized as vulnerable to extinction by the IUCN. The information on various aspects of its natural history in wildlife conditions are scarce, including the ethology of its reproduction. In this study, we describe the sound repertoire emitted by T. ornatus during copulation and mating events in their natural habitat. Video recordings obtained from camera traps in Colombia and Bolivia were analyzed to identify and categorize vocalizations. The results revealed 5 distinct types of sounds emitted during copulation events: humm, grunt, whine, and snoar signals. Differences in vocalization patterns were observed between the male and female bears. Comparisons with existing literature suggest similarities with the vocalizations observed for other species. This study contributes valuable information to the understanding of Andean bear behavior and underscores the importance of acoustic communication in conservation efforts for cryptic species.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Comprender el comportamiento de los animales es crucial para que los esfuerzos de conservación de los mamíferos sean eficaces, pero los conocimientos sobre los patrones de comportamiento de muchas especies, sobre todo en condiciones salvajes, son limitados. El oso andino (Tremarctos ornatus) es el único úrsido distribuido en Sudamérica, categorizado como vulnerable a la extinción por la UICN. La información sobre diversos aspectos de su historia natural en vida silvestre es escasa, incluyendo la etología de su reproducción. En este estudio describimos el repertorio sonoro emitido durante los eventos de cópula y apareamiento por T. ornatus en su hábitat natural. Se analizaron grabaciones de vídeo obtenidas con cámaras trampa en Colombia y Bolivia para identificar y categorizar las vocalizaciones. Los resultados revelan 5 tipos distintos de sonidos emitidos durante los eventos de cópula, incluyendo señales de &#8220;humm&#8221;, &#8220;grunt&#8221;, &#8220;whine&#8221; y &#8220;snoar&#8221;. Se observaron diferencias en los patrones de vocalización entre machos y hembras. Las comparaciones con la literatura existente sugieren similitudes con las vocalizaciones observadas en otras especies. Este estudio contribuye con información valiosa a la comprensión del comportamiento del oso andino y subraya la importancia de la comunicación acústica en los esfuerzos de conservación de especies crípticas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Camera trapping]]></kwd>
<kwd lng="en"><![CDATA[Colombia]]></kwd>
<kwd lng="en"><![CDATA[Bolivia]]></kwd>
<kwd lng="en"><![CDATA[Bioacoustics]]></kwd>
<kwd lng="en"><![CDATA[Reproductive behaviour]]></kwd>
<kwd lng="es"><![CDATA[Fototrampeo]]></kwd>
<kwd lng="es"><![CDATA[Colombia]]></kwd>
<kwd lng="es"><![CDATA[Bolivia]]></kwd>
<kwd lng="es"><![CDATA[Bioacústica]]></kwd>
<kwd lng="es"><![CDATA[Comportamiento reproductivo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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