摘要：English Spanish; Castilian This study determines the composition of amphibian ensembles along a vegetation gradient in the coastal Pacific rainforests in Colombia. Eight environmental and structural variables were measured to characterize the species' habitats and to determine which was most important in structuring amphibian patterns. After a total of 432 man-hours sampling effort, 513 individuals from 32 amphibian species were found. Although the species richness was similar among the vegetation cover types, the composition of the ensembles and total amphibian abundance were different in each case. In addition, a strong relationship was found between changes in the vegetation structure and the amphibian pattern, with the canopy cover being the key variable in the composition of the ensembles for each cover type. Habitats with over 76% canopy cover, combined with a high density of individual woody plants (> 176 individuals per 500 m2 16 cm), provide the necessary habitat conditions for typical rainforest composition of amphibian species. However, for amphibian ensembles to have a mature forest composition, the habitat must have a canopy cover over 89%, a density of woody plants exceeding 231 individuals per 500 m2176 individuos por 500 m216 cm), brindan las condiciones necesarias para que las especies de anfibios presenten una estructura típica de selvas. Sin embargo, para que los ensamblajes de anfibios tengan una estructura acorde a un bosque maduro el hábitat debe tener una cobertura de dosel superior a 89%, una densidad de plantas leñosas mayor a 231 individuos por 500 m2 y una profundidad de hojarasca mayor a 23 cm. Por lo tanto, estudios futuros que quieran profundizar en la sucesión y restauración de anfibios en bosques tropicales deben entender los cambios en la estructura de la vegetación, más que el posible efecto directo de las variables microclimáticas.
关键词：Frogs ; land use gradients ; leaf litter ; vegetation structure ; secondary forest ; mixed farming gradientes de uso de la tierra ; hojarasca ; estructura de plantas ; bosque secundario ; bosque tropical ; cultivo mixto
