@article {57927, title = {Sound Communication in Embryos and Hatchlings of Lepidochelys kempii}, journal = {Chelonian Conservation and Biology}, year = {2019}, month = {Feb-11-2021}, abstract = {

Recent studies have shown that acoustic signals play an important role in turtle social behavior and reproduction. We recorded embryos and hatchlings of Lepidochelys kempii inside the nest and underwater in June 2016 in Playa Santander, Veracruz, Mexico, and detected 189 sounds that were classified into 6 types according to their aural and spectral characteristics. Our results show that acoustic communication appears to be widely used in all species of sea turtles in aquatic environments, probably because of the high efficiency of this signaling modality in water compared with air.

}, issn = {1071-8443}, doi = {10.2744/CCB-1386.1}, url = {http://www.chelonianjournals.org/doi/10.2744/CCB-1386.1}, author = {Ferrara, Camila R. and Vogt, Richard C. and Sousa-lima, Renata S. and Lenz, Anna and Morales-M{\'a}vil, Jorge E.} } @article {57887, title = {Effects of mining truck traffic on cricket calling activity}, year = {2019}, abstract = {

Anthropogenic noise is a global pollutant and several studies have identified its impact on wildlife. This research shows how the noise produced by mining affects crickets\’ acoustic communication. Two passive acoustic monitoring devices (SMII) were installed in a forest fragment located at 500 m from the Brucutu Mine in Brazil. Another two SMII were installed distant 2500 from the mine. The equipment was configured to record from 17:00 to 05:00 h during seven days in April 2013. The authors analyzed the spectral characteristics of acoustic activity of three species of crickets (Anaxipha sp., Gryllus sp., and a Podoscirtinae species) before, during, and after the passing of mine trucks. For comparison the authors analyzed the acoustic characteristics for Anaxipha sp. and Gryllus sp. found in the distant site. Results showed a calling interruption for all the species during truck transit. Gryllus sp. emitted calls with higher maximum frequencies, average power, and larger bandwidth in the site close to the mine. Podoscirtinae species emitted calls with lower minimum frequencies, higher average power, and large bandwidth in the close site. The authors show that insect acoustic behavior varies between areas with different levels of noise. The disruption of this behavior may have negative consequences for their reproductive success.

}, doi = {10.1121/1.5119125}, url = {http://asa.scitation.org/doi/10.1121/1.5119125}, author = {Duarte, Marina H. L. and Caliari, Ernesto P. and Marina D. A. Scarpelli and Lobregat, Gabriel O. and Young, Robert J. and Sousa-lima, Renata S.} } @article {57658, title = {First Record of Bioacoustic Emission in Embryos and Hatchlings of Hawksbill Sea Turtles (Eretmochelys imbricata)}, journal = {Chelonian Conservation and Biology}, year = {2019}, month = {May-11-2019}, abstract = {

Recordings were made in nests of Eretmochelys imbricata and 107 samples of 10-min recordings revealed 575 sounds that were classified manually into 4 categories. Our results show that hawksbill turtles vocalize within the nest, especially during and after eclosion, which suggests vocalizations are important for communication among hatchlings to synchronize emergence from the nest.

}, issn = {1071-8443}, doi = {10.2744/CCB-1382.1}, url = {http://www.chelonianjournals.org/doi/10.2744/CCB-1382.1}, author = {Monteiro, Cibele C. and Carmo, Hayane M.A. and Santos, Armando J.B. and Corso, Gilberto and Sousa-lima, Renata S.} } @article {53443, title = {Whistle variability of Guiana dolphins in South America: Latitudinal variation or acoustic adaptation?}, journal = {Marine Mammal Science}, year = {2018}, month = {Jun-12-2019}, abstract = {

A previous comparison of whistles using data sampled at 48 kHz suggested that certain frequency parameters vary along a latitudinal gradient. This geographical pattern may be biased because whistles sampled at higher frequencies could potentially have very different frequency contents. The current study compared the acoustic parameters of Guiana dolphin (Sotalia guianensis) whistles recorded at a higher sampling rate (96 kHz) and from groups occupying two never before sampled sites, Benevente Bay, Esp\írito Santo, Brazil, and Formosa Bay, Rio Grande do Norte, Brazil, with recordings of other populations in South America. By only considering data sampled at a rate of at least 96 kHz, we aimed to detect differences in whistles across locations. Contrary to previous findings, our analyses do not indicate any clear separation between northern and southern populations based on whistles, and do not corroborate the hypothesis of latitudinal acoustic variation in this species. The variation in Guiana dolphin whistle parameters found here appears to be influenced by latitude to some extent, but several other factors, including sampling method, environmental fluctuations, and social influence on vocal learning, may be confounding the detection of a geographic pattern in these whistle samples.

}, doi = {10.1111/mms.12572}, url = {http://doi.wiley.com/10.1111/mms.12572}, author = {Lopes, Nara Pavan and Reis, Sarah Stutz and Mamede, Nat{\'a}lia and Reis, Suzana Stutz and Toledo, Gustavo and Corso, Gilberto and Sousa-lima, Renata S. and Andriolo, Artur} } @article {52749, title = {What do insects, anurans, birds, and mammals have to say about soundscape indices in a tropical savanna}, journal = {Journal of Ecoacoustics}, volume = {2}, year = {2018}, month = {Sep-18-20182245}, pages = {PVH6YZ}, abstract = {

The application of acoustic indices is incipient and still needs validation before it can reliably characterize soundscapes and monitor rapidly disappearing hot-spot areas as the Brazilian tropical savanna (Cerrado). Here we investigate which of six acoustic indices better correlate with the 24 h zoophony richness of insects, anurans, birds, and mammals. We sampled one minute every 30 minutes for seven days on three sites in Serra da Canastra National Park (Minas Gerais state, Brazil) and extracted the sonotype richness and six indices based on recordings with a bandwidth of up to 48 kHz. The Acoustic Diversity, Evenness, Entropy, and Normalized Difference Soundscape indices followed the temporal trends of the sonotype richness of insects and anurans. The Acoustic Complexity (ACI) and Bioacoustic (BIO) indices did not correlated with sonotype richness. ACI and BIO were influenced by sonic abundance and geophony. We emphasize the need to include insects and anurans on soundscape and acoustic ecology analyses and to avoid bias on avian fauna alone. We also suggest that future studies explore measures of sonic abundance and acoustic niche occupation of sonotypes to complement measures of zoophony richness and better understand what each faunal group is telling us about indices.

}, doi = {10.22261/JEA10.22261/JEA.PVH6YZ}, url = {https://www.veruscript.com/api/files/veruscript_PVH6YZ.pdf}, author = {Ferreira, Luane M. and Oliveira, Eliziane G. and Lopes, Lara C. and Brito, Marcos R. and Baumgarten, J{\'u}lio and Rodrigues, Fl{\'a}vio H. and Sousa-lima, Renata S.} } @article {47324, title = {Upcall production by southern right whale ( Eubalaena australis) mother-calf pairs may be independent of diel period in a nursery area}, journal = {Marine Mammal Science}, year = {2017}, month = {Jan-02-2017}, doi = {10.1111/mms.12382}, url = {http://doi.wiley.com/10.1111/mms.12382}, author = {Dombroski, Julia R. G. and Parks, Susan E. and Groch, Karina R. and Flores, Paulo A. C. and Sousa-lima, Renata S.} }