Passive acoustic monitoring (PAM) offers opportunities to collect data on the occurrence of
vocal species for long periods of time, at multiple locations, and under a range of …

Broadband, pulsed contact calls have been described for captive and temporarily restrained
belugas, but little information exists on their usage in the wild. We examined vocal …

Most mammals can accomplish acoustic recognition of other individuals by means of “voice
cues,” whereby characteristics of the vocal tract render vocalizations of an individual …

The Sotalia guianensis dolphin occurs in the western Atlantic Ocean, from the south of Brazil
to Central America. It is a coastal species, much susceptible to human impacts, as …

Noise and anthropogenic disturbances from vessel traffic are an important threat to the
recovery of the endangered St. Lawrence Estuary (SLE) beluga population. The …

Whistles are key elements in the acoustic repertoire of bottlenose dolphins. In this species,
the frequency contours of whistles are used as individual signatures. Assessing the long …

Social toothed whales are known to produce specific vocalizations that may serve for
individual or group recognition and maintaining cohesion among group members. In beluga …

Boat engines increase the noise levels of the oceans, alter the acoustic environment of
cetaceans and diminish their efficiency to echolocate. This study aims to determine if Guiana …

Abstract The Guiana dolphin (Sotalia guianensis) is a common species along Central and
South American coastal waters. Although much effort has been made to understand its …

Highlights•Signature whistles encoding individual identity are used by several dolphin
species.•Acoustic recordings from two populations of S. chinensis were analysed.•Using the …