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题名: Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin
作者: Li, Songhai1, 3; Nachtigall, Paul E.1; Breese, Marlee1; Supin, Alexander Ya.2
通讯作者: Li, SH (reprint author), Natl Univ Singapore, Marine Mammal Res Lab, Trop Marine Sci Inst, Singapore 117548, Singapore.
关键词: FALSE KILLER WHALE ; MESOPLODON-DENSIROSTRIS ; NEURAL ATTENUATION ; TURSIOPS-TRUNCATUS ; RESPONSES ; BEHAVIOR ; PREY ; PORPOISES ; PULSES ; SOUNDS
刊名: PLOS ONE
发表日期: 2012-01-06
DOI: 10.1371/journal.pone.0029793
卷: 7, 期:1, 页:e29793
收录类别: SCI
文章类型: Article
部门归属: [Li, Songhai; Nachtigall, Paul E.; Breese, Marlee] Univ Hawaii, Marine Mammal Res Program, Hawaii Inst Marine Biol, Kailua, HI USA; [Supin, Alexander Ya.] Russian Acad Sci, Inst Ecol & Evolut, Moscow, Russia; [Li, Songhai] Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan, Peoples R China
WOS标题词: Science & Technology
资助者: Office of Naval Research[N00014-08-1-1106]
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
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.
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.
关键词[WOS]: FALSE KILLER WHALE ; MESOPLODON-DENSIROSTRIS ; NEURAL ATTENUATION ; TURSIOPS-TRUNCATUS ; RESPONSES ; BEHAVIOR ; PREY ; PORPOISES ; PULSES ; SOUNDS
语种: 英语
WOS记录号: WOS:000301188800038
ISSN号: 1932-6203
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16827
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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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

Recommended Citation:
Li, Songhai; Nachtigall, Paul E.; Breese, Marlee; Supin, Alexander Ya..Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin,PLOS ONE,2012,7(1):e29793
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文件名: Hearing Sensation Levels of Emitted Biosonar Clicks in an Echolocating Atlantic Bottlenose Dolphin.pdf
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