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- Pedro M. Ruiz-Carranza, John D. Lynch, CENTROLENIDAE FROGS OF COLOMOBA XL NEW SPECIE OF GLASS FROGS OF THE GENUS HYALINOBATRACHIUM , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 22 No. 85 (1998)
- Claudia M. Vélez-Rodríguez, Pedro M. Ruiz-Carranza, A NEW SPECIES OF ATELOPUS (AMPHIBIA: ANURA: BUFONIDAE) FROM THE CORDILLERA CENTRAL, COLOMBIA , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 21 No. 81 (1997)
- Pedro M. Ruiz-Carranza, CENTROLENID FROGS OF COLOMBIA X. THE CENTROLENIDS OF A PROFILE OF THE EASTER FLANK OF THE CORDILLERA CENTRAL IN DEPARTAMENTO CALDAS , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 21 No. 81 (1997)
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Abstract
Using the data provided in Ruiz-Carranza et al. (1996) the distributions of the 540 species of frogs and toads are partitioned among ten ecogeographic units of Colombia defined on the basis of precipitation and elevation. Sorne lowlands areas (Pacific lowlands, Amazonia) exhibit high diversity (85-94 species) but lowlands areas in general are impoverished (30-52 species), especially when contrasted with upland areas. The three Andean cordilleras harbor between 87 and 121 species of frogs and toads, demonstrating that the biodiversity of Colombia resides primarily in its montane components, not in its lowland rainforests. When biological endemicity is separated from political endemicity, five areas of high endemicity remain (the three Andean cordilleras, the Sierra Nevada de Santa Marta, and the Pacific lowlands). We endeavor to explain this description by recourse to cladistic analyses of several groups of leptodactylid frogs where we find that the general pattem of diversification is by meaos of horizontal diversification (allopatric speciation) with a minor contribution from vertical diversification.
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References
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