title: Is Sound Exposure Level a Convenient Metric to Characterize Fatiguing Sounds? A Study in Beluga Whales.
abstract: Both the level and duration of fatiguing sounds influence temporary threshold shifts (TTSs) in odontocetes. These two parameters were combined into a sound exposure level (SEL). In the beluga whale Delphinapterus leucas, TTSs were investigated at various sound pressure level (SPL)-to-duration ratios at a specific SEL. At low SPL-to-duration ratios, the dependence was positive: shorter high-level sounds produced greater TTSs than long low-level sounds of the same SEL. At high SPL-to-duration ratios, the dependence was negative: long low-level sounds produced greater TTSs than short high-level sounds of the same SEL. Thus, the validity of SEL as a metric for fatiguing sound efficiency is limited.
authors.affiliation: Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninsky Prospekt, 119071, Moscow, Russia. alex_supin@mail.ru.
authors.forename: Alexander
authors.initials: A
authors.lastname: Supin
authors.affiliation: Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninsky Prospekt, 119071, Moscow, Russia. popov.vl.vl@gmail.ru.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Popov
authors.affiliation: Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninsky Prospekt, 119071, Moscow, Russia. dm.nechaev@yandex.ru.
authors.forename: Dmitry
authors.initials: D
authors.lastname: Nechaev
authors.affiliation: Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninsky Prospekt, 119071, Moscow, Russia. evgeniasysueva@gmail.com.
authors.forename: Evgenia
authors.initials: E
authors.lastname: Sysueva
authors.affiliation: Institute of Ecology and Evolution, Russian Academy of Sciences, 33 Leninsky Prospekt, 119071, Moscow, Russia. rozhnov@sevin.ru.
authors.forename: Viatcheslav
authors.initials: V
authors.lastname: Rozhnov
mesh_terms: D000818:Animals; D001309:Auditory Threshold / Q000502:physiology; D050643:Beluga Whale / Q000502:physiology*; D004781:Environmental Exposure; D005260:Female; D011312:Pressure; D013016:Sound
keywords: Odontocetes; Temporary threshold shift