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      Species richness, geographical affinities and activity patterns of mammals in premontane Andean forests of the Magdalena River basin of Colombia

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      Neotropical Biology and Conservation

      Pensoft Publishers

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          Abstract

          More than half of the population of Colombia is settled in the Magdalena River basin, resulting in high deforestation rates due to productive activities and urbanisation. Within this scenario of forest loss and ecosystem degradation, it is imperative to record and monitor the biodiversity in order to decrease and mitigate the negative consequences of human activities on species and ecosystems. For six years, we assessed the mammal species richness, abundance and activity patterns in premontane forests of the Magdalena River basin in the Department of Caldas, Colombia. We also presented additional information on the geographical affinities of this fauna. We recorded 101 species, seven of them endemic to Colombia, with Chiroptera being the richest order, followed by Rodentia. Most of the species are common and not listed in threatened categories and only four are vulnerable and two endangered, according to the Red List of the IUCN and the Ministerio de Medio Ambiente y Desarrollo Sostenible of Colombia. The mammalian fauna of the study area is similar to that of other lowland localities in the Neotropics and different to the fauna in highland localities, including the nearby ones. Specifically, this fauna was most similar to that in lowland Tolima and the Caribbean Region of Colombia, Venezuela and Costa Rica; however, when we accounted only for bat fauna, it was more similar to the fauna in Caribbean and Pacific Regions of Colombia. To secure the long-term persistence of these species, we recommend maintenance of the current corridors, such as riparian forests and living fences and an increase in the forested area.

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          Most cited references 21

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          Riqueza, endemismo y conservación de los mamíferos de Colombia

          Se actualiza la diversidad de especies de mamíferos de Colombia con base en una nueva revisión de especímenes en las mayores colecciones del país y el extranjero y la compilación de cambios taxonómicos recientes que involucran especies presentes en el país. El resultado de estos cambios es un total de 492 especies nativas, que representa un incremento neto de 62 especies respecto a la lista previamente existente (año 2000), lo cual es proporcionalmente mayor al resultado de actualizaciones en otros países neotropicales. Aunque el nivel de conocimiento difiere notoriamente entre grupos, proveemos algunos indicadores generales, como diversidad a nivel de los órdenes, endemismo, patrones de distribución y estado de conservación. La mayor riqueza de especies se da en los órdenes Chiroptera (198 spp.) y Rodentia (122 spp.), pero hay 23 especies endémicas de roedores, contra solo siete de murciélagos. Dependiendo de la naturaleza y escala de las evaluaciones, 39 (MAVDT) a 52 (UICN) especies de mamíferos colombianos se consideran en situación de peligro. Las mayores amenazas continúan siendo la deforestación, así como la cacería y el comercio ilegal.
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            PAST: Paleontological statistics software package for education and data analysis.

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              Speciation in Colombian forest birds west of the Andes

               J. Haffer,  Haffer (1967)
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                Author and article information

                Contributors
                (View ORCID Profile)
                Journal
                Neotropical Biology and Conservation
                NBC
                Pensoft Publishers
                2236-3777
                February 23 2021
                February 23 2021
                : 16
                : 1
                : 145-166
                Article
                10.3897/neotropical.16.e57109
                © 2021

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