Monitoring of anuran amphibians vocalizations in he vicinity of Potrero de los Funes racetrack, San Luis.

M. JOFRÉ Y M. CALDERÓN.

San Luis

Congreso; XXVIII Reunión Científica Anual de la Sociedad de Biología de Cuyo.; 2009

Universidad Nacional de San Luis

Reproductive male vocalizations are important in anuran amphibians,not only as a mechanism of reproductive isolation but also forsocial interaction. This behavior is affected by social and environmentalfactors; and the vocalization effort has been directly relatedto reproductive success in many anuran species. Traffic noise pollutionand other urban sounds, that affect the vocalization behavior(rate, intensity, timing), may therefore impact on reproductive behaviorand success. This study monitored anuran amphibians vocalizationsat breeding sites in Potrero de los Funes reservoir, beforeand after the first sporting event at the racetrack located around thestream. Vocalization surveys were used to identify the species presentand estimate relative abundance. Vocalizations of two species of anuranamphibians (Rinhella arenarum and Leptodactylus mystacinus)were registered in the vicinity of the racetrack. While the richnessfound (n=2) was lower than for other ecosystems of San Luis, wedid not find any decrease in the intensity of vocalizations after therace event. More detailed studies and regular monitoring are neededin order to assess reproductive success and population trends of theanurans dweling nearby the Potrero de los Funes racetrack.