Density and structure of populations of Cebus capucinus curtus (Primates:Cebidae) and Bradypus variegatus gorgon (Pilosa:Bradypodidae) in Gorgona Island, Colombia
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| Autores: | , , , , |
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| Formato: | artículo original |
| Estado: | Versión publicada |
| Fecha de Publicación: | 2014 |
| Descripción: | Gorgona is a continental island in the Pacific of Colombia. Two subspecies of arboreal mammals inhabit the island: the White-throated Capuchin (Cebus capucinus curtus) and the Brown-throated Sloth (Bradypus variegatus gorgon). These organisms are important for conservation since they are endemic and perform an essential role as seed dispersers in the National Park. This paper presents information on the population ecology of these two subspecies by using the transects-of-variable-width method, based on perpendicular detection distance, to establish density and age structure. The density of C. capucinus curtus in Gorgona Island was 170.6ind/km2 (95% CI=122-238.4), while that of B. variegatus gorgon was 2.6ind/km2 (IC 95%= 1.3 to 4.9ind/km2). The density of C. capucinus curtus in Isla Gorgona is the highest recorded for this species throughout its geographic range, while that of B. variegatus gorgon is the lowest reported for the species. The high density of C. curtus capucinus could be related to a synergistic effect between low predation and continuous availability of food, while the low density of B. variegates gorgon could be related to past hunting pressure, to the low reproductive rate of the species, and to a pandemic occurred in 2005. We recommend constant monitoring of populations of both subspecies, and population health studies for B. variegatus gorgon. Rev. Biol. Trop. 62 (Suppl. 1): 447-456. Epub 2014 February 01. |
| País: | Portal de Revistas UCR |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Lenguaje: | Español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/16371 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/rbt/article/view/16371 |
| Access Level: | acceso abierto |
| Palabra clave: | Densidad poblacional efecto isla recursos claves Cebus capucinus curtus Bradypus variegatus gorgon Gorgona Colombia Population density Island effect key resources |