Vocal universals and geographic variations in the acoustic repertoire of the common bottlenose dolphin.

ABSTRACT: Acoustical geographic variation is common in widely distributed species and it is already described for several taxa, at various scales. In cetaceans, intraspecific variation in acoustic repertoires has been linked to ecological factors, geographical barriers, and social processes. For the common bottlenose dolphin (Tursiops truncatus), studies on acoustic variability are scarce, focus on a single signal type-whistles and on the influence of environmental variables. Here, we analyze the acoustic emissions of nine bottlenose dolphin populations across the Atlantic Ocean and the Mediterranean Sea, and identify common signal types and acoustic variants to assess repertoires' (dis)similarity. Overall, these dolphins present a rich acoustic repertoire, with 24 distinct signal sub-types includin

SUBMITTER: Luis AR 

PROVIDER: S-EPMC8178411 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature