Vicente´s poison frog (Oophaga vicentei) in the wild: calling activity, bioacoustics and diet

Calling activity, bioacoustics and the diet of males is reported for three different populations of Oophaga vicentei in central Panama. Calling activity was predicted by time of day, season and temperature with peaks between 08:00 h to 10:00 h and was more frequent during the dry season. Only at one location was calling activity positively correlated with air temperature. The temperature was also positively correlated with call repetition rates and negatively with call duration. Within the ten first calls of a call-bout, there was a cline variation in dominant frequency, call duration and silent intervals. The stomach contents of males comprised mainly insects but also a large number of oribatid mites.