RT info:eu-repo/semantics/doctoralThesis T1 Estudios acústicos de coordinación social, ecología trófica y caracterización del hábitat de cetáceos de buceo profundo en Canarias A1 Alcázar Treviño, Jesús A2 Biología Animal y Edafología y Geología AB Sound is key for deep-diving cetaceans foraging at the twilight zone of great oceanic depths. Here, these predators use both their own active acousticsignals and passive monitoring to probe their surroundings and to mediate biological functions from courtship to predator/prey detection. Thus, studyingthe bioacoustics of these soniferous animals and their acoustic environment can reveal relevant aspects of their biology and behaviour that cannot bedirectly observed. This thesis contributes knowledge about the behavioural ecology of deep diving whales and the acoustic characteristics of their deepwater habitat. This information is essential to understand their life requirements and thus basic to design measures towards the conservation managementof their populations. This thesis addresses four main hypotheses and objectives in their relative chapters:I. General introductionII. Fear of killer whales drives extreme synchrony in deep diving beaked whales.III. Deep-diving beaked whales dive together but forage apart.IV. Comparative trophic ecology in deep-diving cetaceans derived from biologging.V. Acoustic characterization of the habitat of deep-diving cetaceans in the Canary Islands.General conclusions YR 2021 FD 2021 LK http://riull.ull.es/xmlui/handle/915/37729 UL http://riull.ull.es/xmlui/handle/915/37729 LA en NO Programa FPU 2016 del MECD DS Repositorio institucional de la Universidad de La Laguna RD 15-ago-2024