[MARMAM] New publication on high- frequency social communication in Guiana dolphins (Sotalia guianensis)

Mariana Barbosa marib66 at gmail.com
Fri Aug 16 08:57:30 PDT 2019

Dear Colleagues,

We are pleased to announce the publication of the following paper in The
Journal of the Acoustical Society of America Express Letters:

Mariana Barbosa, Lis Bittencourt, Luciana G. Andrade, Tatiana L. Bisi, Jose
Lailson-Brito, Jr., and Alexandre F. Azevedo (2019).  High-frequency social
communication in *Sotalia guianensis. *https://doi.org/10.1121/1.5120550


This study aimed to investigate the use of high ultrasonic frequencies
(above 40 kHz) in the Sotalia guianensis whistle repertoire. The whistles
were classified as high-frequency (HF) whistles and very high-frequency
(VHF) whistles. Seven parameters were extracted and a general linear mixed
effects model was performed between the total number of whistles and VHF
ones. Frequency parameters of HF and VHF whistles were the highest reported
for this species so far. However, VHF whistles were rare and occurred in
situations of high acoustic activity, which may represent a strategy used
by dolphins to deal with higher levels of vocalization rates.

The paper is open access and can be downloaded in the link below:

Kind regards,
Mariana Barbosa
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