van Parijs, Sofie M., and Corkeron, Peter J. (2001) Evidence for signature whistle production by a pacific humpback dolphin, Sousa chinensis. Marine Mammal Science, 17 (4). pp. 944-949.

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Abstract

[Extract] Delphinids are known for their impressive capacities to both produce and perceive sounds. They can produce a variety of tonal sounds, clicks and combinations of the two (e.g., Popper 1980). Whistles and burst pulses appear to play a role in social interactions, while broad band clicks are though to be used mainly for echolocation (e.g., Herman and Tavolga 1980), although clicks also occur in social contexts (e.g., Herzing 1996). Bottlenose dolphins, Tursiops spp., have been shown to produce individually distinct "signature" whistles (Caldwell and Caldwell 1965, Caldwell et al. 1990, Sayigh et al. 1990, Janik et al. 1994). Experiments with captice and restrained bottlenose dolphins have demonstrated that these whistles function as individual identifiers (Sayigh et al. 1999) and contact calls (Janik and Slater 1998).

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