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- W2031854714 abstract "Classification of animal vocalizations is often done by a human observer using aural and visual analysis but more efficient, automated methods have also been utilized to reduce bias and increase reproducibility. Beluga whale, Delphinapterus leucas, calls were described from recordings collected in the summers of 2006–2008, in the Churchill River, Manitoba. Calls (n=706) were classified based on aural and visual analysis, and call characteristics were measured; calls were separated into 453 whistles (64.2%; 22 types), 183 pulsed/noisy calls (25.9%; 15 types), and 70 combined calls (9.9%; seven types). Measured parameters varied within each call type but less variation existed in pulsed and noisy call types and some combined call types than in whistles. A more efficient and repeatable hierarchical clustering method was applied to 200 randomly chosen whistles using six call characteristics as variables; twelve groups were identified. Call characteristics varied less in cluster analysis groups than in whistle types described by visual and aural analysis and results were similar to the whistle contours described. This study provided the first description of beluga calls in Hudson Bay and using two methods provides more robust interpretations and an assessment of appropriate methods for future studies." @default.
- W2031854714 created "2016-06-24" @default.
- W2031854714 creator A5032433619 @default.
- W2031854714 creator A5072110982 @default.
- W2031854714 date "2012-06-01" @default.
- W2031854714 modified "2023-09-24" @default.
- W2031854714 title "Beluga whale,<i>Delphinapterus leucas</i>, vocalizations from the Churchill River, Manitoba, Canada" @default.
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- W2031854714 doi "https://doi.org/10.1121/1.4707501" @default.
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