{"refrec":{"BRefID":391755,"RR":"<b>Diamant, R.; Testolin, A.; Shachar, I.; Galili, O.; Scheinin, A.</b> (2024). Observational study on the non-linear response of dolphins to the presence of vessels. <i>NPG Scientific Reports 14(1)</i>: 6062 . <a href=\"https://dx.doi.org/10.1038/s41598-024-56654-6\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-024-56654-6</a>","BEntID":389502,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 14(1)</i>: 6062. <a href=\"https://dx.doi.org/10.1038/s41598-024-56654-6\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-024-56654-6</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Diamant, R.; Testolin, A.; Shachar, I.; Galili, O.; Scheinin, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Diamant, R. <i>et al.</i>","Englishabstract":"With the large increase in human marine activity, our seas have become populated with vessels that can be overheard from distances of even 20&nbsp;km. Prior investigations showed that such a dense presence of vessels impacts the behaviour of marine animals, and in particular dolphins. While previous explorations were based on a linear observation for changes in the features of dolphin whistles, in this work we examine non-linear responses of bottlenose dolphins (<i>Tursiops Truncatus</i>) to the presence of vessels. We explored the response of dolphins to vessels by continuously recording acoustic data using two long-term acoustic recorders deployed near a shipping lane and a dolphin habitat in Eilat, Israel. Using deep learning methods we detected a large number of 50,000 whistles, which were clustered to associate whistle traces and to characterize their features to discriminate vocalizations of dolphins: both structure and quantities. Using a non-linear classifier, the whistles were categorized into two classes representing the presence or absence of a nearby vessel. Although our database does not show linear observable change in the features of the whistles, we obtained true positive and true negative rates exceeding 90% accuracy on separate, left-out test sets. We argue that this success in classification serves as a statistical proof for a non-linear response of dolphins to the presence of vessels.<h3>&nbsp;</h3>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Observational study on the non-linear response of dolphins to the presence of vessels","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-15 01:33:48.559857","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2024,"MonPub":null,"DateUpdate":"2024-04-08","DateCreate":"2024-04-08","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-024-56654-6"},"refs":null,"anarec":{"AnaID":391755,"PubliDate":2024,"Pagination":"6062","XtraPublOfAnaID":null,"ISBN":null,"Volume":"14","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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