On the advertisement call of Bokermannohyla oxente Lugli and Haddad, 2006 (Anura, Hylidae)

Abstract

Considering a new sample of calls of Bokermannohyla oxente, we revisited its call description and acoustic diagnosis. Four males were recorded in Piatã (Bahia, Brazil). Calls were composed of a single note emitted in sequences which could be long (up to 25 s). Notes were composed by a discrete weak/short initial prefix slightly separated from a second strong/long part; besides fundamental (= dominant), 2−3 other harmonically related bands were found. No prefix or harmonic structure were previously reported to B. oxente. Our record extends about 50 km the distribution of the species to west. The call of B. oxente is particular by having the weak/short initial prefix. Bokermannohyla juiju and B. oxente share the differential feature of releasing calls at high rates and in long sequences. Bokermannohyla itapoty also seems to have a higher dominant frequency than B. oxente.