Abstract
The advertisement calls of eight Bolivian species of Scinax are described including information on the calling behaviour of each species. A characteristic audiospectrogram and oscillogram are presented for each species, as well as numerical information about the spectral and temporal features of the calls. Two phenograms based on the characteristics of the mating calls are constructed, the first one using a traditional multivariate technique (UPGMA) and the second one using audiospectrogram correlation, a new technique that allows holistic comparisons of single vocalizations.
Highlights
The Neotropics contain by far the most diverse anuran fauna in the world, and a great number of species is being described each year
South American countries, Bolivia contains some of the least known areas, and its anuran fauna has been the subject of several recent discoveries
In this study we contribute to the knowledge of Bolivian herpetofauna by presenting the characteristics of the advertisement calls of eight species in the hylid genus Scinax, previously known as Ololygon
Summary
The Neotropics contain by far the most diverse anuran fauna in the world, and a great number of species is being described each year. The only parameter that shows slightly less dramatic differences between the calls described, is the dominant frequency: 3250 Hz according to Duellman (1978) and ranging from 3453 Hz to 3958 Hz in the present study.
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