Abstract (en):
The Paramo is a unique Andean ecosystem with different types of vegetation and aquatic systems. It is used
by several bird species, but considering only restricted species excludes many others that use it. An ecological
analysis was performed that included all bird species that make use of it by diet and weight discontinuities.
Analysis was performed on bird records for Colombian páramos and four categories for permanence are proposed. 207 species are frequently reported in Colombian páramos (49 exclusively, 69 regularly, 65 peripherally, and 24 not permanently). Thraupidae, Trochilidae, Tyrannidae, and Furnariidae predominate. Many species are found in the cordillera Oriental and less for Serranía de Perijá and Sierra Nevada de Santa Marta. 22 species are endemic and 26 near-endemic to Colombia. Small sized birds that consume insects and small invertebrates predominate, but almost half consume other types of resources (nectar and fruits, and in less proportion seeds, vertebrates and carrion). The heaviest species feed on vertebrates and carrion, and also aquatic resources. Several species need more information to understand their lasting presence in páramos. All species require information on abundances
and use of resources.
Abstract (es):
El páramo es un ecosistema únicamente presente en los Andes tropicales y contiene diferentes tipos de vegetación y sistemas acuáticos. Es utilizado por varias especies de aves, sin embargo, considerar únicamente a las restringidas excluye una gran cantidad de especies. Se realizó un análisis ecológico que incluyó a todas aquellas que lo utilizan, de acuerdo a sus dietas y discontinuidades de peso. Para el análisis se recopilaron las aves registradas en páramos de Colombia y se propone una clasificación en cuatro categorías de presencia. En los páramos de Colombia han sido registradas 207 especies (49 exclusivas, 69 habituales, 65 periféricas y 24 no permanentes). Predominan Thraupidos, Trochilidos, Tyrannidos y Furnariidos. Muchas especies se registran en la cordillera Oriental y menos en la serranía de Perijá y Sierra Nevada de Santa Marta. Hay 22 especies endémicas y 26 casiendémicas de Colombia. Predominan las aves pequeñas, consumidoras de insectos e invertebrados pequeños; cerca de la mitad consumen otro tipo de alimentos (néctar y frutos, y menor proporción semillas, vertebrados y carroña). Las especies más pesadas consumen vertebrados y carroña y recursos acuáticos. Es necesario evaluar algunas especies para conocer su permanencia en los páramos, al igual que sus abundancias y uso de recursos.
Keywords:
Avifauna, Discontinuidad peso, Distribución geográfica, Especies casi-endémicas, Endémicas (es)
How to Cite
Córdoba-Córdoba, S. (2016). Páramo birds in Colombia: ecological characteristics according to diet and body weight groups. Biota Colombiana, 17. https://doi.org/10.21068/C2016v17s02a05
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