TY - JOUR
T1 - Killer whale (Orcinus orca) whistles from the western South Atlantic Ocean include high frequency signals
AU - Andriolo, Artur
AU - Reis, Sarah S.
AU - Amorim, Thiago O. S.
AU - Sucunza, Federico
AU - Castro, Franciele R.
AU - Maia, Ygor G.
AU - Zerbini, Alexandre N.
AU - Bortolotto, Guilherme Augusto
AU - Dalla Rosa, Luciano
N1 - Publisher Copyright:
© 2015 Acoustical Society of America.
PY - 2015/9/30
Y1 - 2015/9/30
N2 - Acoustic parameters of killer whale (Orcinus orca) whistles were described for the western South Atlantic Ocean and highlight the occurrence of high frequency whistles. Killer whale signals were recorded on December of 2012, when a pod of four individuals was observed harassing a group of sperm whales. The high frequency whistles were highly stereotyped and were modulated mostly at ultrasonic frequencies. Compared to other contour types, the high frequency whistles are characterized by higher bandwidths, shorter durations, fewer harmonics, and higher sweep rates. The results add to the knowledge of vocal behavior of this species.
AB - Acoustic parameters of killer whale (Orcinus orca) whistles were described for the western South Atlantic Ocean and highlight the occurrence of high frequency whistles. Killer whale signals were recorded on December of 2012, when a pod of four individuals was observed harassing a group of sperm whales. The high frequency whistles were highly stereotyped and were modulated mostly at ultrasonic frequencies. Compared to other contour types, the high frequency whistles are characterized by higher bandwidths, shorter durations, fewer harmonics, and higher sweep rates. The results add to the knowledge of vocal behavior of this species.
UR - http://www.scopus.com/inward/record.url?scp=84943177155&partnerID=8YFLogxK
U2 - 10.1121/1.4928308
DO - 10.1121/1.4928308
M3 - Article
SN - 0001-4966
VL - 138
SP - 1696
EP - 1701
JO - Journal of the Acoustical Society of America
JF - Journal of the Acoustical Society of America
IS - 3
ER -