@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.} }