TY - JOUR
T1 - Evidence for simultaneous sound production in the bowhead whale (Balaena mysticetus)
AU - Tervo, Outi Maria
AU - Christoffersen, Mads Fage
AU - Parks, Susan E.
AU - Kristensen, Reinhardt Møbjerg
AU - Madsen, Peter Teglberg
PY - 2011/10
Y1 - 2011/10
N2 - Simultaneous production of two harmonically independent sounds, the two-voice phenomenon, is a well-known feature in bird song. Some toothed whales can click and whistle simultaneously, and a few studies have also reported simultaneous sound production by baleen whales. The mechanism for sound production in toothed whales has been largely uncovered within the last three decades, whereas mechanism for sound production in baleen whales remains poorly understood. This study provides three lines of evidence from recordings made in 2008 and 2009 in Disko Bay, Western Greenland, strongly indicating that bowhead whales are capable of simultaneous dual frequency sound production. This capability may function to enable more complex singing in an acoustically mediated reproductive advertisement display, as has been suggested for songbirds, and/or have significance in individual recognition.
AB - Simultaneous production of two harmonically independent sounds, the two-voice phenomenon, is a well-known feature in bird song. Some toothed whales can click and whistle simultaneously, and a few studies have also reported simultaneous sound production by baleen whales. The mechanism for sound production in toothed whales has been largely uncovered within the last three decades, whereas mechanism for sound production in baleen whales remains poorly understood. This study provides three lines of evidence from recordings made in 2008 and 2009 in Disko Bay, Western Greenland, strongly indicating that bowhead whales are capable of simultaneous dual frequency sound production. This capability may function to enable more complex singing in an acoustically mediated reproductive advertisement display, as has been suggested for songbirds, and/or have significance in individual recognition.
U2 - 10.1121/1.3628327
DO - 10.1121/1.3628327
M3 - Journal article
SN - 0001-4966
VL - 130
SP - 2257
EP - 2262
JO - The Journal of the Acoustical Society of America
JF - The Journal of the Acoustical Society of America
IS - 4
ER -