کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6358895 | 1622746 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Severity of killer whale behavioral responses to ship noise: A dose-response study
ترجمه فارسی عنوان
شدت پاسخ های رفتاری نهنگ قاتل به سر و صدای کشتی: مطالعه دوز پاسخ
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کلمات کلیدی
کانادا، حفاظت، زیستگاه حیاتی، نهنگ قاتل، سر و صدا، کشتی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
چکیده انگلیسی
Critical habitats of at-risk populations of northeast Pacific “resident” killer whales can be heavily trafficked by large ships, with transits occurring on average once every hour in busy shipping lanes. We modeled behavioral responses of killer whales to ship transits during 35 “natural experiments” as a dose-response function of estimated received noise levels in both broadband and audiogram-weighted terms. Interpreting effects is contingent on a subjective and seemingly arbitrary decision about severity threshold indicating a response. Subtle responses were observed around broadband received levels of 130 dB re 1 μPa (rms); more severe responses are hypothesized to occur at received levels beyond 150 dB re 1 μPa, where our study lacked data. Avoidance responses are expected to carry minor energetic costs in terms of increased energy expenditure, but future research must assess the potential for reduced prey acquisition, and potential population consequences, under these noise levels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 79, Issues 1â2, 15 February 2014, Pages 254-260
Journal: Marine Pollution Bulletin - Volume 79, Issues 1â2, 15 February 2014, Pages 254-260
نویسندگان
Rob Williams, Christine Erbe, Erin Ashe, Amber Beerman, Jodi Smith,