Lucas Borges Martins

Advertisement Calls of Two Species of Proceratophrys (Anura: Odontophrynidae) from Minas Gerais, Brazil, with Comments on their Distribution, Taxonomy and Conservation Status

ABSTRACT. The neotropical frog genus Proceratophrys currently consists of 27 species and only 14 have the advertisement calls described. Herein we describe the advertisement calls of Proceratophrys moratoi based on populations from Minas Gerais State, Brazil and provide an extension to its currently known geographical distribution. Also the advertisement calls of topotypic specimens of P. palustris are described. The analyzed calls of P. moratoi agree with those previously described from São Paulo State and allow this species to be differentiated from the other species in the genus; the calls of P. palustris are very similar to those of P. brauni. Based on the new data for the studied species, we suggest changing the conservation status of P. moratoi to “Data Deficient (DD)” and that of p palustris to “Critically Endangered (CR)”.

New bioacoustic and distributional data on Bokermannohyla sapiranga Brandão et al. , 2012 (Anura: Hylidae): revisiting its diagnosis in comparison with B. pseudopseudis (Miranda-Ribeiro, 1937)

In this paper, we provide new bioacoustic and distributional data on Bokermannohyla sapiranga, as well as additional comparative bioacoustic data on topotypes of B. pseudopseudis, and re-evaluate the differential diagnosis of the former species with respect to the latter. Head shapes (dorsal and lateral views) presented such variation that should not be used to differentially diagnose them as originally proposed. On the other hand, the presence of a dermal ridge along outer tarsi, and color patterns of the eyes and dorsal surface of hand/toe disks still represent diagnostic characters between both species. We also found differences in temporal (call duration; notes per call), spectral (dominant frequency; harmonics), and structural (pulsed/non-pulsed note structure) traits of their calls. Distribution of B. sapiranga is extended eastward (Paracatu), which corresponds to the first record for the State of Minas Gerais, whereas B. pseudopseudis distribution seems to be restricted to rocky montane field environments of northern Goiás State.

Reassessment of the vocal repertoire of a nest-building gladiator frog, Boana pardalis (Anura, Hylidae, Cophomantinae): implications for its diagnosis within the B. faber species group

ABSTRACT In this study, we re-describe the advertisement and territorial calls of Boana pardalis, carry out an acoustic comparison between the studied species and the other congeners of the B. faber group, and report for the first time the tympanic amplexus for the studied species. The advertisement call of B. pardalis can be used to supplement its diagnosis in the B. faber group based on temporal call traits, e.g. emission rate and emission pattern, as well as the call envelope.

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

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.