What male humpback whale song chorusing can and cannot tell us about their ecology: strengths and limitations of passive acoustic monitoring of a vocally active baleen whale ...
Passive acoustic monitoring (PAM) with autonomous bottom-moored recorders is widely used to study cetacean occurrence, distribution, and behaviors, as it is not subject to factors that limit other traditional observation methods (e.g. vessel, land and aerial-based surveys) such as inclement weather,...
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| Format: | Audio |
| Language: | English |
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Friedrich-Schiller-Universität Jena
2018
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| Online Access: | https://dx.doi.org/10.22032/dbt.37824 https://www.db-thueringen.de/receive/dbt_mods_00037824 |
| Summary: | Passive acoustic monitoring (PAM) with autonomous bottom-moored recorders is widely used to study cetacean occurrence, distribution, and behaviors, as it is not subject to factors that limit other traditional observation methods (e.g. vessel, land and aerial-based surveys) such as inclement weather, sighting conditions, the remoteness of study sites, etc. PAM projects range widely from presence/absence studies to addressing questions about noise exposure. On the Hawaiian breeding ground, an estimated 12,000 humpback whales migrate annually from their high-latitude feeding grounds in Alaska to mate and give birth. While on the breeding grounds males produce an elaborate acoustic display known as song. Multiple males usually sing concurrently resulting in an ongoing chorus of song throughout the season. This song, primarily produced at peak frequencies under 2 kHz, can be captured using PAM, thus providing a powerful tool to monitor the humpback whale population and to study the actual song itself and its ... : ICEI 2018 : 10th International Conference on Ecological Informatics- Translating Ecological Data into Knowledge and Decisions in a Rapidly Changing World ... |
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