<?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>2007-3364</journal-id>
<journal-title><![CDATA[Therya]]></journal-title>
<abbrev-journal-title><![CDATA[Therya]]></abbrev-journal-title>
<issn>2007-3364</issn>
<publisher>
<publisher-name><![CDATA[Asociación Mexicana de Mastozoología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-33642017000300199</article-id>
<article-id pub-id-type="doi">10.12933/therya-17-460</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Abundance, density and habitat use of lowland paca (Cuniculus paca, Rodentia: Cuniculidae) in the Lacandon Rainforest, Chiapas, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa-de-León]]></surname>
<given-names><![CDATA[Avril]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Naranjo]]></surname>
<given-names><![CDATA[Eduardo J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perales]]></surname>
<given-names><![CDATA[Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos-Moreno]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lorenzo]]></surname>
<given-names><![CDATA[Consuelo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,El Colegio de la Frontera Sur  ]]></institution>
<addr-line><![CDATA[San Cristóbal de Las Casas Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional ]]></institution>
<addr-line><![CDATA[Santa Cruz Xoxocotlán Oaxaca]]></addr-line>
<country>Mexico</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>8</volume>
<numero>3</numero>
<fpage>199</fpage>
<lpage>208</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33642017000300199&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33642017000300199&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33642017000300199&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this study, the effect of relevant variables (availability of food and cavities, competition, predation, and hunting pressure) on the relative abundance and population density of the spotted lowland paca (Cuniculus paca) was assessed. In addition, habitat use of this species at three sites with different land use regime (Montes Azules Biosphere Reserve, community reserves, and anthropic sites) in the Lacandon Rainforest, Chiapas, Mexico was analysed. From the perspective of the source-sink systems, it was predicted that pacas selectively would use the habitat with higher food and cavity availability (source habitats), where higher densities were expected. Twelve transects were located in three sites with different land use regimes, where food availability and potential cavities used by pacas were assessed. Along these transects, 4 camera-traps were deployed every 200 meters to estimate the relative abundance of pacas and their potential competitors and predators. Photo-captured individuals were identified to estimate population density and seasonal variation in habitat use. Generalized linear models (GLM) were constructed to analyse the effects of several variables on paca abundance and density. A relative abundance of 0.05 and 0.08 paca photographs/100 camera-days were recorded in the dry and the rainy season, respectively. A density of 54 pacas/km2 was estimated in both seasons. The availability of cavities was the only variable that showed a significant effect on paca density (P = 0.04 for the dry season, and P = 0.006 for the rainy season). Community reserves were used in the dry season more than expected from their availability in the study area (x2 = 28.8; P = 0.0001). In the rainy season, all three sites were used by paca in proportion to their availability. Our results suggest that the cavities used as refuges by pacas drive their population dynamics, and constitute a key habitat resource for them in the study area. We propose that the Ejidal Reserve and Montes Azules Biosphere Reserve may be source habitats supporting higher paca densities and greater availability of adequate cavities to protect adults and their offspring. On the other hand, areas transformed into croplands and grasslands for livestock production would represent sink habitats with lower paca densities, less availability of adequate cavities, and absence of offspring. The long-term conservation and habitat management of pacas in transformed landscapes will probably rely on the distribution and connectivity between and within the different habitat types available in the study area.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[En este estudio, se evaluó el efecto de variables (disponibilidad de alimento y cavidades, competencia, depredación y presión de cacería) sobre la abundancia y densidad poblacional de Cuniculus paca. Se determinó el uso de hábitat de esta especie en tres sitios con distinto uso de suelo (Reserva de la Biosfera Montes Azules, reservas ejidales y sitios antrópicos) en la Selva Lacandona, Chiapas, México. Desde la perspectiva de los sistemas fuente-sumidero, se propuso que C.paca utilizaría selectivamente el hábitat con mayor disponibilidad de alimento y cavidades (hábitats fuente), donde presentaría mayor densidad poblacional. Se realizaron 12 transectos en tres sitios con diferente uso de suelo, donde se estimó la disponibilidad de alimento y cavidades potenciales para C. paca. A lo largo de éstos, se colocaron 4 trampas-cámara (cada 200 m) para determinar la abundancia relativa del tepezcuintle, sus competidores potenciales y depredadores. Por medio de la identificación de individuos a través de las foto capturas, se obtuvo la densidad, misma con la que se determinó el uso de hábitat por medio de pruebas de chi-cuadrada e intervalos de Bonferroni. Se construyeron modelos lineales generalizados para analizar el efecto de diversas variables sobre la abundancia y densidad de C. paca. En temporada seca se registraron 0.05 fotografías/100 días-cámara y en la de lluvias 0.08 fotografías/100 días-cámara, además de una densidad de 54 individuos/km2 en ambas temporadas. La disponibilidad de cavidades fue la única variable que mostró efecto significativo sobre las densidades del tepezcuintle (P = 0.04 temporada seca, P = 0.006 temporada de lluvias). Las reservas ejidales en temporada seca, se utilizaron más de lo esperado con base en su disponibilidad (X2 = 28.8; P = 0.0001). En la temporada lluviosa, los tres hábitats fueron utilizados en proporción a su disponibilidad. Los resultados sugieren que las cavidades utilizadas como refugio estarían direccionando las dinámicas poblacionales del tepezcuintle y son un recurso clave dentro de los requerimientos de hábitat de esta especie en la zona de estudio. Se propone que la Reserva Ejidal y la Reserva de la Biósfera Montes Azules podrían considerarse hábitat fuente, ya que ambos contaron con mayor disponibilidad de cavidades adecuadas para la protección de los adultos y sus crías, mayores densidades, además de la presencia de crías tomada como indicador del éxito reproductivo. Por su parte, el hábitat antrópico sería sumidero, por tener menor disponibilidad de cavidades adecuadas, menor densidad poblacional y ausencia de crías. La conservación a largo plazo y manejo de hábitat del tepezcuintle en paisajes transformados, dependerán en gran parte de la distribución y conectividad entre y dentro de los diferentes tipos de hábitats.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[cavities]]></kwd>
<kwd lng="en"><![CDATA[food]]></kwd>
<kwd lng="en"><![CDATA[hunting pressure]]></kwd>
<kwd lng="en"><![CDATA[rodent]]></kwd>
<kwd lng="en"><![CDATA[source-sink]]></kwd>
<kwd lng="es"><![CDATA[cavities]]></kwd>
<kwd lng="es"><![CDATA[food]]></kwd>
<kwd lng="es"><![CDATA[hunting pressure]]></kwd>
<kwd lng="es"><![CDATA[rodent]]></kwd>
<kwd lng="es"><![CDATA[source-sink]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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