2026-10-14T09:47:23Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33696637 2026-09-13T12:36:53Z category_24232 category_24214 item_type_3 month_year_09_2026

Acoustic dataset on geographic variation in bottlenose dolphin (<i>Tursiops truncatus</i>) signature whistles across five Mediterranean and Atlantic sites Guillaume Pelletingeas (24852196) Population ecology Behavioural ecology Geographic variation Bottlenose dolphin Vocal learning <p dir="ltr">This dataset contains acoustic measurements of 224 bottlenose dolphin (<i>Tursiops truncatus</i>) signature whistles, collected across five sampling areas spanning the Atlantic Ocean and the Mediterranean Sea: the Pitiüses Islands and Galicia (Spain), and Rome, Sardinia, and Sicily (Italy). Recordings were obtained using passive acoustic monitoring (Pitiüses Islands) or boat-based encounters (all other sites) between 2005 and 2022. For each signature whistle, eight acoustic parameters describing frequency and frequency modulation were extracted through visual inspection of spectrograms: initial frequency, final frequency, maximum frequency, minimum frequency, frequency range, duration, number of inflection points, and the coefficient of frequency modulation (COFM). The dataset was used to investigate geographic variation in signature whistle structure using multivariate (Principal Component Analysis, PERMANOVA) and univariate statistical approaches.</p> 2026-09-13T12:36:53Z Dataset Dataset 10.6084/m9.figshare.33696637.v1 https://figshare.com/articles/dataset/Acoustic_dataset_on_geographic_variation_in_bottlenose_dolphin_i_Tursiops_truncatus_i_signature_whistles_across_five_Mediterranean_and_Atlantic_sites/33696637 CC BY 4.0