Context-driven communication during deep-sea foraging in a social toothed whale
Data files
Jul 17, 2024 version files 36.87 KB
Abstract
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 information, including foraging conditions or an individual’s location. Moreover, they accentuate the importance of maintaining acoustic contact with conspecifics, specifically when dispersed during deeper foraging. It also signifies that our oceanic top predators may be specifically vulnerable to the current strong increase in anthropogenic noise. Potential masking of the signals from group-members communicating at a distance could undermine their social cohesion, and hence their capacity to maintain vital life functions.
README: Context-driven communication during deep-sea foraging in a social-toothed whale
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
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: fvisser@kelpmarineresearch.com
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 Hessing S, Risser N, Pichot L,Oudejans MG, Guilpin M, Barcelos LMD, Curé C, Visser F. 2024 Context-driven communication during deep-sea foraging in a social-toothed whale. R. Soc. Open Sci. 11: 240558. https://doi.org/10.1098/rsos.240558
DATA & FILE OVERVIEW
DATA & FILE OVERVIEW
1. File List:
The Supporting GEE data file consists of 3 sheets.
SHEET 1: GEE1-3
SHEET 2: GEE2
SHEET 3: GEE4-5
METHODOLOGICAL INFORMATION
1. Description of methods used for collection/generation of data:
Data was collected using Dtags.
2. Methods for processing the data:
Data were extracted from the Dtag sensors using standard methods as described in Hessing et al., 2024
3. Instrument- or software-specific information needed to interpret the data:
N/A
4. Standards and calibration information, if appropriate:
N/A
5. Environmental/experimental conditions:
Variable, open ocean environment
DATA-SPECIFIC INFORMATION FOR: SUPPORTING GEE DATA - SHEET 1: GEE1-3
<repeat this section for each dataset, folder or file, as appropriate>
1. Number of variables: 10
2. Number of cases/rows: 147
3. Variable List:
Whale_id = identifier of a tagged individual in this dataset (whale nr 1 was tagged twice)
Tag_id = individual identifier of tagged Risso's dolphin (gg = species, 1x = year (201x), yyya/b/c = julian day in the year + first/second/third tag deployment on that day)
Divecategory = one of 4 dive categories, spin day, spin night, non-spin day or non-spin night.
Divetype = a dive is classified as 'spin' or 'non-spin' following Visser et al., 2021
Timeofday = a dive is classified as 'day' or 'night' by the timing of dive onset relative to local sunset
PRE = Burst-pulse calls produced 0-16 minutes preceding the foraging dive
DES = Burst-pulse calls produced during the descent phase (period from surface till the first buzz)
FOR = Burst-pulse calls produced during foraging (period between first and last buzz)
ASC = Burst-pulse calls produced during ascent (period from last buzz till resurfacing)
POST = Burst-pulse calls produced 0-16 minutes following the foraging dive
4. Missing data codes:
N/A
DATA-SPECIFIC INFORMATION FOR: SUPPORTING GEE DATA - SHEET 2: GEE2
<repeat this section for each dataset, folder or file, as appropriate>
1. Number of variables: 4
2. Number of cases/rows: 401
3. Variable List:
Whale_id =identifier of a tagged individual in this dataset (whale nr 1 was tagged twice)
Tag_id = individual identifier of tagged Risso's dolphin (gg = species, 1x = year (201x), yyya/b/c = julian day in the year + first/second/third tag deployment on that day)
Divecycle = timing of the burst-pulse within the dive cycle, either at the surface (PRE or POST diving) or during the dive (DES, or ASC).
Duration_bp = time in seconds of burst-pulse call
4. Missing data codes:
N/A
DATA-SPECIFIC INFORMATION FOR: SUPPORTING GEE DATA - SHEET 3: GEE4-5
<repeat this section for each dataset, folder or file, as appropriate>
1. Number of variables: 7
2. Number of cases/rows: 150
3. Variable List:
Whale_id = identifier of a tagged individual in this dataset (whale nr 1 was tagged twice)
Tag_id = individual identifier of tagged Risso's dolphin (gg = species, 1x = year (201x), yyya/b/c = julian day in the year + first/second/third tag deployment on that day)
Divecategory = one of 4 dive categories, spin day, spin night, non-spin day or non-spin night.
Divetype = a dive is classified as 'spin' or 'non-spin' following Visser et al., 2021
Timeofday = a dive is classified as 'day' or 'night' by the timing of dive onset relative to local sunset
Maxdepth = maximum dive depth in meters
Depth_SOC = depth in meters of start production of echolocation clicks
4. Missing data codes:
N/A