<?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>S2007-33642022000300287</article-id>
<article-id pub-id-type="doi">10.12933/therya-22-2126</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Variation in population density of the Andean night monkey (Aotus lemurinus) in areas with different landscape characteristics]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Florez]]></surname>
<given-names><![CDATA[Laura Chica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Roncancio Duque]]></surname>
<given-names><![CDATA[Néstor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solari]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Antioquia Instituto de Biología ]]></institution>
<addr-line><![CDATA[Medellín Antioquia]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia Facultad de Ciencias Agrarias ]]></institution>
<addr-line><![CDATA[Palmira Valle del Cauca]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>13</volume>
<numero>3</numero>
<fpage>287</fpage>
<lpage>294</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33642022000300287&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33642022000300287&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33642022000300287&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: In the Colombian Andes, most of the populations of Andean night monkeys (Aotus lemurinus) are found in fragmented landscapes due to the predominant changes in land use in the region. Thus, forest fragments differ in shape, size, degree of isolation, and availability of resources. These factors have had a differential effect on the ecology and permanence of their populations. In order to determine the effect of fragmentation on A. lemurinus, we estimated its population density in a protected area of 489 ha of sub-Andean forest - at Otún Quimbaya Wildlife Sanctuary- which is structurally connected with other protected areas; then, we compared it with another study carried out in the unprotected Sub-andean forest fragments (900 ha) of Dapa, at the Valle del Cauca department. To estimate its density, the distance sampling method was used with 31 linear transects, and the data were analyzed with the software Distance. Landscape metrics was estimate with patch analyses tools with a Corine Land Cover information 1:100,000 scale. The plant structure and diversity were measurement with transects to 50 x 4 m and taking account the trees with diameter at breast height over 10 cm. We use average comparison to evaluate the similarities between patrons of the population density and explanatory variables. A population density of 39 ind/km2 was found in our study, which is lower than the 113 ind/km2 found in the Dapa. This relation was similar to relations of mean shape index, mean patch size and mean diameter at breast height, and inverse with the relations of proportion of the forest in the area, weighted cover index, plant diversity and density of trees. It is likely that the protected area, by being connected and having a greater diversity of primates and trees, allows this population not to suffer from a crowding phenomenon, and that the population does not increase it carrying capacity due to the low presence of competing species, conversely to what could be occurring in the unprotected fragments. Conversely, high density in Dapa could be reflect a system depletion in diversity and ecological processes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En los Andes colombianos, la mayoría de las poblaciones de monos nocturnos andinos (Aotus lemurinus) se encuentran en paisajes fragmentados debido a los cambios en el uso de suelo predominantes en la región. Los fragmentos de bosque difieren en forma, tamaño, grado de aislamiento y disponibilidad de recursos. Estos factores han tenido un efecto diferencial en la ecología y permanencia de sus poblaciones. Para determinar el efecto de la fragmentación sobre A. lemurinus, se estimó su densidad poblacional en un área protegida de 489 ha de bosque subandino - Santuario de Fauna y Flora Silvestre Otún Quimbaya- que está estructuralmente conectado con otras áreas protegidas; luego, lo comparamos con otro estudio realizado en fragmentos de bosque Subandino no protegidos (900 ha) de Dapa, en el departamento del Valle del Cauca. Para estimar su densidad se utilizó el método de muestreo a distancia con 31 transectos lineales, y los datos se analizaron con el programa Distance. Las métricas del paisaje se estimaron con herramientas de análisis de parche con información Corine Land Cover a escala 1:100,000. La estructura y diversidad de las plantas se midió con transectos de 50 x 4 m y teniendo en cuenta los árboles con un diámetro a la altura del pecho de más 10 cm. Usamos la comparación de medias para evaluar las similitudes entre los patrones de la densidad de población y las variables explicativas. Se encontró una densidad poblacional de 39 ind/km2, menor a los 113 ind/km2 encontrados en Dapa. Esta relación fue similar a las relaciones de índice medio de forma, tamaño medio de parche y diámetro medio a la altura del pecho de los árboles, e inversa a las relaciones de proporción de bosque en el área, índice de cobertura ponderado, diversidad vegetal y densidad de árboles. Es probable que el área protegida al estar conectada y tener una mayor diversidad de primates y árboles, permita que esta población no presente un fenómeno de hacinamiento, y que la población no aumente su capacidad de carga por la baja presencia de especies competidoras, al contrario de lo que podría estar ocurriendo en los fragmentos no protegidos. Por el contrario, la alta densidad en Dapa podría reflejar un agotamiento del sistema en diversidad y procesos ecológicos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Abundance]]></kwd>
<kwd lng="en"><![CDATA[Landscape metrics]]></kwd>
<kwd lng="en"><![CDATA[lemurine owl monkey]]></kwd>
<kwd lng="en"><![CDATA[plant diversity and structure]]></kwd>
<kwd lng="en"><![CDATA[Sub-andean Forest]]></kwd>
</kwd-group>
</article-meta>
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