Torri Marco

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Torri
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Marco
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  • Article
    Dolphin whistles can be useful tools in identifying units of conservation
    (BMC, 2021-07-29) Papale, Elena B. ; Azzolin, Marta A. ; Cascão, Irma ; Gannier, Alexandre ; Lammers, Marc O. ; Martin, Vidal M. ; Oswald, Julie N. ; Perez-Gil, Monica ; Prieto, Rui ; Silva, Mónica A. ; Torri, Marco ; Giacoma, Cristina
    Prioritizing groupings of organisms or ‘units’ below the species level is a critical issue for conservation purposes. Several techniques encompassing different time-frames, from genetics to ecological markers, have been considered to evaluate existing biological diversity at a sufficient temporal resolution to define conservation units. Given that acoustic signals are expressions of phenotypic diversity, their analysis may provide crucial information on current differentiation patterns within species. Here, we tested whether differences previously delineated within dolphin species based on i) geographic isolation, ii) genetics regardless isolation, and iii) habitat, regardless isolation and genetics, can be detected through acoustic monitoring. Recordings collected from 104 acoustic encounters of Stenella coeruleoalba, Delphinus delphis and Tursiops truncatus in the Azores, Canary Islands, the Alboran Sea and the Western Mediterranean basin between 1996 and 2012 were analyzed. The acoustic structure of communication signals was evaluated by analyzing parameters of whistles in relation to the known genetic and habitat-driven population structure.