Context-driven communication during deep-sea foraging in a social toothed whale

Social deep-diving odontocetes face the challenge of balancing near-surface proximity to oxygen and group members with foraging in the deep sea. Individuals rely on conspecifics for critical life functions, such as predator defence, but disperse during foraging to feed individually. To understand the role of social acoustic mediation during foraging in deep-diving toothed whales, we investigated the context of social burst-pulse call production in Risso’s dolphin (Grampus griseus) using biologgers. Dolphins produced context-specific burst-pulses predominantly during daytime foraging, preceding or following foraging dives and in the early descent of daytime deep dives. Individuals applied differential short and long burst-pulse calls intended for either near-surface receivers (horizontal transmission) or deep-foraging receivers (vertical transmission). Our results show that deep-diving toothed whales are reliant on acoustic communication during certain foraging contexts, to relay informa..., , , # Context-driven communication during deep-sea foraging in a social-toothed whale

[https://doi.org/10.5061/dryad.vmcvdnd1x](https://doi.org/10.5061/dryad.vmcvdnd1x)

## GENERAL INFORMATION

1\. Title of Dataset: Supporting GEE data. Context-driven communication during deep-sea foraging in a social-toothed whale. Hessing et al., 2024

2\. Author Information

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Author for correspondence

Name: F Visser

Institution:
1) Kelp Marine Research, 1624 CJ, Hoorn, The Netherlands
2) Department of Coastal Systems,Royal Netherlands Institute for Sea Research, PO Box 59, Den Burg, 1790 AB, The
Netherlands

Email: [e-mail]
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3\. Date of data collection: 2013-2019

4\. Geographic location of data collection: Terceira Island, Azores, Portugal

## SHARING/ACCESS INFORMATION

1\. Licenses/restrictions placed on the data: request permission to use to the author for correspondence

2\. Recommended citation for this dataset: dataset from H...