Abstract

espanolLos anuros hacen uso de los recursos fisicos y biologicos del microhabitat a una escala fina, teniendo en cuenta aspectos adaptativos, morfologicos, fisiologicos y comportamentales de las especies. Objetivo: Caracterizar el microhabitat de la especie Rhinella horribilis en pastizales en el municipio de Villa de Leyva, departamento de Boyaca. Metodologia: El registro de los anuros se realizo en tres ncas con cobertura de pastizal predominante, a traves de la tecnica VES durante el dia y la noche, evaluandose las siguientes variables de microhabitat: temperatura y humedad relativa del ambiente, sustrato y posicion horizontal. Resultados: Se registro un total de 19 individuos de R. horribilis en la cobertura de pastizal. La especie fue reportada en un rango de temperatura y humedad relativa que varia entre los 17°C y 26oC y entre 50% y 82% respectivamente, asi como tambien sobre diferentes tipos de sustratos, en particular terrestres, y de manera primordial asociada con charcas temporales (posicion horizontal). Conclusion: El uso de microhabitat por parte de la especie es proporcional en todas las categorias y rangos propuestos de las variables estudiadas para la cobertura de pastizal. EnglishAnurans make use of the physical and biological resources of the microhabitat at a fine scale, taking into account the adaptive, morphological, physiological and behavioral aspects of the species. Objective: Characterize the microhabitat of the species Rhinella horribilis in pastures in the municipality of Villa de Leyva, Boyaca department. Methodology: The anuran record was made in three farms with predominant pasture coverage through the VES technique during the day and night, evaluating the following microhabitat variables: temperature and relative humidity of the environment, substrate and horizontal position. Results: A total of 19 individuals of R. horribilis were recorded in the grassland coverage. The species was reported in a range of temperature and relative humidity that varies between 17°C-26o C and 50%-82% respectively, as well as on different types of substrates, particularly terrestrial, and associated to temporary ponds mostly (horizontal position). Conclusions: The use of microhabitat by the species is proportional in all the categories and ranges proposed for the variables studied for the grassland coverage.

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