<?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>0120-548X</journal-id>
<journal-title><![CDATA[Acta Biológica Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta biol.Colomb.]]></abbrev-journal-title>
<issn>0120-548X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-548X2020000300359</article-id>
<article-id pub-id-type="doi">10.15446/abc.v25n3.77558</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[FOOD SELECTION AND USE OF SPACE BY Didelphis pernigra (DIDELPHIDAE: MAMMALIA) IN A SUBURBAN ANDEAN ENVIRONMENT]]></article-title>
<article-title xml:lang="es"><![CDATA[Selección de alimento y uso del espacio por Didelphis pernigra (Didelphidae: Mammalia) en un ambiente uburbano andino]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez-Cáceres]]></surname>
<given-names><![CDATA[Gina Patrícia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Adinolfi]]></surname>
<given-names><![CDATA[Cristiano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Applied and Environmental Sciences Faculty of Environmental Sciences Ecology and Environmental Conservation Research Group]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Naples "Parthenope" Faculty of Science and Technology Department of Environmental Sciences]]></institution>
<addr-line><![CDATA[Naples ]]></addr-line>
<country>Italy</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de los Llanos Facultad de Ciencias Básicas e Ingeniería ECOTONOS Research Group, Programa de Biología]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>25</volume>
<numero>3</numero>
<fpage>359</fpage>
<lpage>367</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-548X2020000300359&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-548X2020000300359&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-548X2020000300359&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Cities have grown throughout the Andes and we know little about the ecology of those species that tolerate them, limiting our options to do conservation. We applied optimal foraging theory to examine the behavior of the Andean White-eared Opossum (Didelphispernigra), in a suburban area in Bogotá, Colombia. We used the giving-up density technique, which uses the amount of food left in a feeding patch, to evaluate whether the opossum's foraging costs were affected by the height of food from the ground, and the quality and quantity of food. We also evaluated whether the spatial heterogeneity of the study site affected the opossum's foraging. We used an artificial feeding patch to test these ideas. When food was either concentrated and, in less amount (concentrated food) or diluted and more amount (diluted food), the opossums preferred to forage at 2 m than at 0.5 m, and they showed a preference for concentrated food at 0.5 m, but not at 2 m. The opossums' habitat use was affected by the spatial heterogeneity at the study site and animals preferred foraging along metal fences than on live fences made of trees. When a cable allowed connection between the metallic and live fences, the value of food patches at the live fence appeared to increase. Thus, although the opossums need resources associated with natural environments, our results suggest that there are human modifications that can benefit them, such as those that reduce the risk of predation and favor their mobility in suburban environments.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En los Andes las ciudades han crecido y sabemos poco sobre la ecología de aquellas especies que toleran dicho crecimiento, limitando las opciones para su apropiada conservación. Aplicamos la teoría de uso óptimo de parches para examinar el comportamiento de forrajeo del fara (Didelphispernigra) en un área suburbana de Bogotá, Colombia. Utilizamos la técnica de densidad de abandono, que usa la cantidad de alimento dejada en un parche, para evaluar si los costos de forrajeo de este marsupial fueron afectados por la altura de los parches desde el suelo, así como la calidad y cantidad de alimento. Igualmente, evaluamos el efecto de la heterogeneidad espacial del área de estudio sobre el forrajeo del fara. Usamos un parche alimentario artificial con alimento líquido para evaluar estas hipótesis. Cuando el alimento era concentrado y en menor cantidad (concentrado) o diluido y en mayor cantidad (diluido), los faras prefirieron forrajear a 2 m, y prefirieron el alimento concentrado sobre el diluido a 0.5 m, pero no a 2 m. El uso del hábitat del fara fue afectado por la heterogeneidad espacial en el sitio de estudio y ellos prefirieron forrajear a lo largo de cercas metálicas, más que sobre cercas vivas. Cuando un cable permitió la conexión entre las cercas metálicas y vivas, el valor de algunos parches en la cerca viva pareció aumentar. Aunque los faras necesitan recursos asociados con ambientes naturales, nuestros resultados sugieren que las modificaciones humanas, como las que reducen el riesgo de depredación y favorecen su movilidad, pueden beneficiarlos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Andes]]></kwd>
<kwd lng="en"><![CDATA[giving-up density]]></kwd>
<kwd lng="en"><![CDATA[optimal patch use]]></kwd>
<kwd lng="en"><![CDATA[predation risk]]></kwd>
<kwd lng="en"><![CDATA[urban ecology]]></kwd>
<kwd lng="es"><![CDATA[Andes]]></kwd>
<kwd lng="es"><![CDATA[densidad de abandono]]></kwd>
<kwd lng="es"><![CDATA[ecología urbana]]></kwd>
<kwd lng="es"><![CDATA[riesgo de depredación]]></kwd>
<kwd lng="es"><![CDATA[uso óptimo de parches]]></kwd>
</kwd-group>
</article-meta>
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</back>
</article>
