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Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin

文献类型：期刊论文

作者Li, Songhai1,3; Nachtigall, Paul E.1; Breese, Marlee1; Supin, Alexander Ya.2; Li, SH (reprint author), Natl Univ Singapore, Marine Mammal Res Lab, Trop Marine Sci Inst, Singapore 117548, Singapore.
刊名PLOS ONE
出版日期2012-01-06
卷号7期号:1页码:e29793
关键词False Killer Whale Mesoplodon-densirostris Neural Attenuation Tursiops-truncatus Responses Behavior Prey Porpoises Pulses Sounds
ISSN号1932-6203
DOI10.1371/journal.pone.0029793
文献子类Article
英文摘要Emitted biosonar clicks and auditory evoked potential (AEP) responses triggered by the clicks were synchronously recorded during echolocation in an Atlantic bottlenose dolphin (Tursiops truncatus) trained to wear suction-cup EEG electrodes and to detect targets by echolocation. Three targets with target strengths of -34, -28, and -22 dB were used at distances of 2 to 6.5 m for each target. The AEP responses were sorted according to the corresponding emitted click source levels in 5-dB bins and averaged within each bin to extract biosonar click-related AEPs from noise. The AEP amplitudes were measured peak-to-peak and plotted as a function of click source levels for each target type, distance, and target-present or target-absent condition. Hearing sensation levels of the biosonar clicks were evaluated by comparing the functions of the biosonar click-related AEP amplitude-versus-click source level to a function of external (in free field) click-related AEP amplitude-versus-click sound pressure level. The results indicated that the dolphin's hearing sensation levels to her own biosonar clicks were equal to that of external clicks with sound pressure levels 16 to 36 dB lower than the biosonar click source levels, varying with target type, distance, and condition. These data may be assumed to indicate that the bottlenose dolphin possesses effective protection mechanisms to isolate the self-produced intense biosonar beam from the animal's ears during echolocation.; Emitted biosonar clicks and auditory evoked potential (AEP) responses triggered by the clicks were synchronously recorded during echolocation in an Atlantic bottlenose dolphin (Tursiops truncatus) trained to wear suction-cup EEG electrodes and to detect targets by echolocation. Three targets with target strengths of -34, -28, and -22 dB were used at distances of 2 to 6.5 m for each target. The AEP responses were sorted according to the corresponding emitted click source levels in 5-dB bins and averaged within each bin to extract biosonar click-related AEPs from noise. The AEP amplitudes were measured peak-to-peak and plotted as a function of click source levels for each target type, distance, and target-present or target-absent condition. Hearing sensation levels of the biosonar clicks were evaluated by comparing the functions of the biosonar click-related AEP amplitude-versus-click source level to a function of external (in free field) click-related AEP amplitude-versus-click sound pressure level. The results indicated that the dolphin's hearing sensation levels to her own biosonar clicks were equal to that of external clicks with sound pressure levels 16 to 36 dB lower than the biosonar click source levels, varying with target type, distance, and condition. These data may be assumed to indicate that the bottlenose dolphin possesses effective protection mechanisms to isolate the self-produced intense biosonar beam from the animal's ears during echolocation.
WOS关键词FALSE KILLER WHALE ; MESOPLODON-DENSIROSTRIS ; NEURAL ATTENUATION ; TURSIOPS-TRUNCATUS ; RESPONSES ; BEHAVIOR ; PREY ; PORPOISES ; PULSES ; SOUNDS
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000301188800038
资助机构Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106] ; Office of Naval Research[N00014-08-1-1106]
公开日期2012-09-25
源URL[http://ir.ihb.ac.cn/handle/342005/16827]  
专题水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文
通讯作者Li, SH (reprint author), Natl Univ Singapore, Marine Mammal Res Lab, Trop Marine Sci Inst, Singapore 117548, Singapore.
作者单位1.Univ Hawaii, Marine Mammal Res Program, Hawaii Inst Marine Biol, Kailua, HI USA
2.Russian Acad Sci, Inst Ecol & Evolut, Moscow, Russia
3.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan, Peoples R China
推荐引用方式
GB/T 7714		 Li, Songhai,Nachtigall, Paul E.,Breese, Marlee,et al. Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin[J]. PLOS ONE,2012,7(1):e29793.
APA Li, Songhai,Nachtigall, Paul E.,Breese, Marlee,Supin, Alexander Ya.,&Li, SH .(2012).Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin.PLOS ONE,7(1),e29793.
MLA Li, Songhai,et al."Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin".PLOS ONE 7.1(2012):e29793.

入库方式： OAI收割

来源：水生生物研究所

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