<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662018000600039</article-id>
<article-id pub-id-type="doi">10.15174/au.2018.1667</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Thermal ecology of the Rattlesnake Crotalus catalinensis from Santa Catalina Island, Gulf of California]]></article-title>
<article-title xml:lang="es"><![CDATA[Ecología térmica en la serpiente de cascabel Crotalus catalinensis en Isla Santa Catalina, Golfo de California]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arnaud]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval]]></surname>
<given-names><![CDATA[Sarahi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escobar-Flores]]></surname>
<given-names><![CDATA[Jonathan G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gomez-Muñoz]]></surname>
<given-names><![CDATA[Victor M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Burguete]]></surname>
<given-names><![CDATA[Jose L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigaciones Biológicas del Noroeste S.C.  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional CIIDIR Unidad Durango ]]></institution>
<addr-line><![CDATA[ Durango]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Politécnico Nacional CIIDIR Unidad Durango ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Politécnico Nacional CICIMAR ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>28</volume>
<numero>6</numero>
<fpage>39</fpage>
<lpage>46</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662018000600039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662018000600039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662018000600039&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The body temperature of the Santa Catalina Island rattlesnake (Crotalus catalinensis) is reported for the first time. C. catalinensis presented a broad range of body temperature (13.6 °C - 38.2 °C ;    X - = 25.9 °C; N = 65). The interval substrate temperature associated with the snakes is between 14.8 °C and 37.9 °C, while the ambient temperature ranges from 16.4 °C to 36.2 °C. A higher correlation was found between body temperature and substrate. No significant differences between sexes were observed. The lower active temperature recorded was during March (14.0 °C - 23.7 °C), while the highest temperature occurred in November (19.4 °C - 39.6 °C). The relative humidity recorded was between 53.15% and 77.32%. The open ground habitat without vegetation was the most frequented by snakes. It had been reported that C. catalinensis presented diurnal and nocturnal habits; however, we found that it exhibited only nocturnal habits, even during winter periods. C. catalinensis exhibited, like other rattlesnakes, thermo-conformist behavior, its body temperature correlating with soil temperature; however, the question about whether other rattlesnakes&#8217; pattern of activity is also influenced by relative humidity as it did with C. catalinensis (which is an island species) arises.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La temperatura corporal de la serpiente de cascabel (Crotalus catalinensis) en Isla Santa Catalina es reportada por primera vez. C. catalinensis, tienen un amplio rango de temperaturas corporales oscilando entre los 13.6 °C - 38.2 °C;    X - = 25.9 °C; N = 65, el rango de las temperaturas del sustrato asociadas con las serpientes es entre 14.8 °C - 37.9 °C, mientras que las temperaturas ambientales oscilaron entre 16.4 °C a 36.2 °C. Se encontró una mayor correlación entre las temperaturas corporales y el sustrato. No se observaron diferencias significativas entre los sexos. Las temperaturas más bajas registradas fueron durante marzo (14.0 °C - 23.7 °C), mientras que las temperaturas más altas se produjeron en noviembre (19.4 °C - 39.6 °C). La humedad relativa registrada fue de 53.15% a 77.32 %. El hábitat de suelo abierto sin vegetación fue el más frecuentado por las serpientes. Había sido reportado que C. catalinensis presentaba hábitos diurnos y nocturnos; sin embargo, nosotros encontramos que solo exhibía hábitos nocturnos, incluso durante los períodos de invierno. Crotalus catalinensis exhibió, como otras serpientes de cascabel, comportamiento termoconformista, correlacionando su temperatura corporal con la temperatura del suelo, sin embargo, surge la pregunta si en otras serpientes de cascabel también su patrón de actividad está influenciado por la humedad relativa como ocurrió con C. catalinensis, que es una especie isleña.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Crotalus catalinensis]]></kwd>
<kwd lng="en"><![CDATA[reptile]]></kwd>
<kwd lng="en"><![CDATA[thermoregulation]]></kwd>
<kwd lng="en"><![CDATA[Santa Catalina Island]]></kwd>
<kwd lng="es"><![CDATA[Crotalus catalinensis]]></kwd>
<kwd lng="es"><![CDATA[reptiles]]></kwd>
<kwd lng="es"><![CDATA[termorregulación]]></kwd>
<kwd lng="es"><![CDATA[Isla Santa Catalina]]></kwd>
</kwd-group>
</article-meta>
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