Dear colleagues,
on behalf of my co-authors I'm pleased to announce the publication of
our paper titled:
"Context specificity of Atlantic spotted dolphin acoustic signals in
the Canary Islands"
Full citation: Elena Papale, Monica Perez-Gil, Juliana Castrillon,
Enrique Perez-Gil, Leire Ruiz, Antonella Servidio, Marisa Tejedor,
Cristina Giacoma & Vidal MartÃn (2016): Context specificity of
Atlantic spotted dolphin acoustic signals in the Canary Islands,
Ethology Ecology & Evolution, DOI: 10.1080/03949370.2016.1171256
Abstract
The behavioural context provides opportunities for studying the use
and characteristics of acoustic signals. We analysed the
context-specific use of acoustic signals in a population of Atlantic
spotted dolphins around the Canary archipelago. We calculated the
whistle diversity, the mean value of whistle stereotypy and the
repetition rate of both tonal and burst-pulsed sounds. Eleven
parameters of frequency, signal duration and modulation were measured
from each whistle. Results showed that whistle diversity and whistle
and chirp repetition rates were negatively correlated with group size,
but only whistle diversity and the mean number of stereotypy were
related to behavioural activity. Whistles were more complexly
modulated during high behavioural activity than when engaged in
moderate movements. Furthermore, during socialising and feeding, the
highest mean value of stereotypy was displayed, and the parameters of
non-stereotyped whistles had lower variability. Our results suggest
the use of a complex communication system to improve the efficiency of
communication through context-specific signal combinations, the usage
of different signals and their modulation pattern. Our study produces
evidence to support the hypothesis that acoustic plasticity and
differences in call characteristics may be indicative of behavioural
and social acoustic environment.
A PDF version of the paper is available online at:
http://dx.doi.org/10.1080/03949370.2016.1171256
or via email request to: [email protected]
Best,
Elena
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Elena Papale, PhD
Institute for Coastal Marine Environment
National Research Council
Via del Mare 3
91021 Torretta Granitola (TP)
Italy
[email protected]
[email protected]
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