Resumo

MENDOZA, Ángela María; AGUIRRE-ROJAS, Lina; SARRIA, Maryory  e  GIRALDO, Alan. DENDROPSOPHUS COLUMBIANUS (HYLIDAE) SAPROPHYTIC INTEGUMENTARY MOLDS FROM CALOTO, COLOMBIA. Bol. Cient. Mus. Hist. Nat. Univ. Caldas [online]. 2012, vol.16, n.1, pp.33-40. ISSN 0123-3068.

It has been widely reported that microorganisms present in soil or in water have a strong impact on the viability of amphibians' natural populations. However, in rural areas with livestock activities, the natural composition of the soil microorganism community can be highly altered by cattle mobility to the point that cattle hooves can be an effective means for microorganisms' growth and spread. This paper presents the results of fungal isolation in the skin of Dendropsophus columbianus in a silvopastoral area with livestock activities in northern Cauca department (Colombia), compared with fungal soil and cattle hooves isolation in the area studied. In total, ten genera of ascomycetes and one zygomicete were isolated from which four were found in D. columbianus' skin, five in cattle hooves and nine in soil samples. Some of the genera found have been previously reported as pathogenic fungi and dermatophytic for anurans, although their negative effect on the skin of frogs can be mitigated by both the natural immune system or the microbial symbiotic community found in the anuran skin. However, the continuous movement of livestock can become a dispersion factor of some isolated fungi, reason why under the livestock activity conditions it is necessary to consider a wider scope of pathogens which potentially might affect anurans' skin.

Palavras-chave : anurans; cattle raising; symbiosis; soil.

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