Abstract
Knowledge of Andean anurans is constantly increasing; for this reason, it needs an update. We reviewed scientific literature and museum records to determine the species richness of anurans in the northern Andes and their conservation status based on the IUCN categories. The northern Andes harbor 740 species of anurans, belonging to 13 families and 63 genera. The family with the highest species number was Craugastoridae (334 spp.), followed by Bufonidae (92 spp.), and Centrolenidae (81 spp.). The Cordillera Central of Colombia harbors the highest species richness (199 spp.), while the Cordillera de la Costa Oriental de Venezuela contains the lowest species number (17 spp.). Most species (74%) is endemic to the northern Andes, but no family is endemic to the northern Andes. About 50% species is threatened and 20% is included in the category of deficient data. The species richness patterns in northern Andes might be caused, among other reasons, by historical factors, but also result of sampling lack in some areas.
Highlights
We reviewed scientific literature and museum records to determine the species richness of anurans in the northern Andes and their conservation status based on the IUCN categories
Most species (74%) is endemic to the northern Andes, but no family is endemic to the northern Andes
Estos autores hallaron que los patrones de riqueza evidenciados en especies de este clado son asociados, en mayor medida, con el tiempo geológico de la región andina
Summary
La riqueza de anuros (= diversidad) del norte de los Andes fue actualizada revisando las siguientes fuentes generales: Ruiz-Carranza et al. Adicionalmente, se calcularon los tamaños de las áreas de cada una de las unidades fisiográficas a partir de un modelo digital Raster, que se utilizó para la interpolación de las curvas y polígonos de cada unidad fisiográfica en el programa ArcGIS; con esto, seguidamente se hizo una regresión lineal para determinar la relación que puede haber entre la riqueza de especies y el tamaño del área de cada una de las unidades fisiográficas. Para describir el estado de conservación se consideraron las categorías que usa la UICN, consultando su página web (www.iucnredlist.org). En los casos de especies recientemente descritas, se consideraron las asignaciones propuestas por sus autores en las respectivas descripciones
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