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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0090824
论文题名:	In-Air Evoked Potential Audiometry of Grey Seals (Halichoerus grypus) from the North and Baltic Seas
作者:	Andreas Ruser; Michael Dähne; Janne Sundermeyer; Klaus Lucke; Dorian S. Houser; James J. Finneran; Jörg Driver; Iwona Pawliczka; Tanja Rosenberger; Ursula Siebert
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-3-14
卷:	9, 期:3
语种:	英语
英文关键词:	Seals ; Ears ; Background noise (acoustics) ; Audio signal processing ; Acoustic signals ; Headphones ; Hearing ; Brainstem
英文摘要:	In-air anthropogenic sound has the potential to affect grey seal (Halichoerus grypus) behaviour and interfere with acoustic communication. In this study, a new method was used to deliver acoustic signals to grey seals as part of an in-air hearing assessment. Using in-ear headphones with adapted ear inserts allowed for the measurement of auditory brainstem responses (ABR) on sedated grey seals exposed to 5-cycle (2-1-2) tone pips. Thresholds were measured at 10 frequencies between 1–20 kHz. Measurements were made using subcutaneous electrodes on wild seals from the Baltic and North Seas. Thresholds were determined by both visual and statistical approaches (single point F-test) and good agreement was obtained between the results using both methods. The mean auditory thresholds were ≤40 dB re 20 µPa peak equivalent sound pressure level (peSPL) between 4–20 kHz and showed similar patterns to in-air behavioural hearing tests of other phocid seals between 3 and 20 kHz. Below 3 kHz, a steep reduction in hearing sensitivity was observed, which differed from the rate of decline in sensitivity obtained in behavioural studies on other phocids. Differences in the rate of decline may reflect influence of the ear inserts on the ability to reliably transmit lower frequencies or interference from the structure of the distal end of the ear canal.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090824&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18854
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0090824.PDF（1081KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation, Büsum, Schleswig-Holstein, Germany;Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation, Büsum, Schleswig-Holstein, Germany;Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation, Büsum, Schleswig-Holstein, Germany;Institute for Marine Resources and Ecosystem Studies, Imares, Wageningen UR, Den Burg, North Holland, The Netherlands;National Marine Mammal Foundation, San Diego, California, United States of America;U.S. Navy Marine Mammal Program, Space and Naval Warfare Systems Center Pacific, San Diego, California, United States of America;Veterinary Clinic, Reinsbüttel, Schleswig-Holstein, Germany;Hel Marine Station, University Gdansk, Hel, Pomerania, Poland;Seal Centre Friedrichskoog, Friedrichskoog, Schleswig-Holstein, Germany;Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation, Büsum, Schleswig-Holstein, Germany

Recommended Citation:

Andreas Ruser,Michael Dähne,Janne Sundermeyer,et al. In-Air Evoked Potential Audiometry of Grey Seals (Halichoerus grypus) from the North and Baltic Seas[J]. PLOS ONE,2014-01-01,9(3)

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