Abstract (en):
The Chili-Barragan complex is one of the páramo regions of lesser extent in Central cordillera of Colombia,
located mainly on Tolima department. Although some studies exist on birds associated with páramo areas of the department, there are still gaps in information on this and other complexes in the region. The aim of this study
was to value the bird diversity of the Chili-Barragán complex, through the study of three of its páramos, briefly
examining the dynamics of birds in the elevation gradient. To achieve this goal, field surveys were carried out
on the páramos of Anaime (Cajamarca), Chili (Roncesvalles) and Las Nieves-Estanbul (Ibague) using methods such as visual and aural records, and mist nets. An elevational transect was designed from 3200 - 3600 m a.s.l. at intervals of 100 m between each station for each locality. We recorded 89 species of birds, which represent the 88% - 96% of the estimated bird richness for the complex. This information underlines the idea that this complex is among the most diverse páramo regions in the country. In addition, we found a decline in species
richness with increasing elevation and we found the birds in these three páramos have a different composition
between 3200 - 3400 m a.s.l. and 3500 - 3600 m a.s.l.
Abstract (es):
El complejo de páramos Chilí-Barragán es una de las regiones paramunas de menor extensión en la cordillera Central de Colombia, que se encuentra principalmente sobre el departamento de Tolima. Aunque existen estudios sobre la avifauna asociada a las zonas de páramo del departamento, subsisten vacíos de información sobre este y otros complejos en la región. El objetivo de este estudio fue evaluar la diversidad de aves del complejo Chilí-Barragán, a través del estudio de tres de sus páramos, examinando brevemente la dinámica de la avifauna en el gradiente de elevación. Para tal fin se realizaron muestreos en los páramos de Anaime (Cajamarca), Chilí (Roncesvalles) y Las Nieves-Estambul (Ibagué) empleando métodos como registros visuales, auditivos y redes de niebla. Se diseñó un transecto altitudinal desde 3200 - 3600 m s.n.m. con intervalos de 100 m de altura entre cada estación para cada páramo. Como resultado se registraron 89 especies de aves, que representan el 88 % - 96 % de la riqueza de aves estimada para el complejo, información que coloca a esta región paramuna entre las más diversas del país. Adicionalmente, se observó una disminución en la riqueza con el ascenso en el gradiente de elevación y se halló que la avifauna en estos tres páramos presenta una composición diferente entre las franjas altitudinales 3200-3400 m s.n.m. y 3500-3600 m s.n.m.
Keywords:
Bosque altoandino, Comunidad aves, Gradiente altitudinal (es)
How to Cite
Moreno-Palacios, M., & Losada-Prado, S. (2016). Birds of the Chilí-Barragán páramo complex (Tolima, Colombia. Biota Colombiana, 17. https://doi.org/10.21068/C2016v17s02a07
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