Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics
Non-social factors can influence animal social structure. In killer whales (Orcinus orca), fish- versus mammal-eating ecological differences are regarded as key ecological drivers of their multilevel society, including group size, but the potential importance of specific target prey remains unclear....
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Online Access: | https://doi.org/10.5061/dryad.j619s |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::e0ecdaeffc1f0aaa8fd844a0e03d45bf 2023-05-15T16:49:10+02:00 Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics Tavares, Sara B. Samarra, Filipa I.P. Miller, Patrick J.O. 2021-06-29 https://doi.org/10.5061/dryad.j619s undefined unknown http://dx.doi.org/10.5061/dryad.j619s https://dx.doi.org/10.5061/dryad.j619s lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96350 10.5061/dryad.j619s oai:easy.dans.knaw.nl:easy-dataset:96350 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care multilevel societies Social structure orca hierarchical structure ecological context killer whale Orcinus orca Iceland psy envir Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2021 fttriple https://doi.org/10.5061/dryad.j619s 2023-01-22T17:22:36Z Non-social factors can influence animal social structure. In killer whales (Orcinus orca), fish- versus mammal-eating ecological differences are regarded as key ecological drivers of their multilevel society, including group size, but the potential importance of specific target prey remains unclear. Here, we investigate the social structure of herring-eating killer whales in Iceland and compare it to the described social structures of primarily salmon- and seal-eating populations in the Northeast Pacific, which form stable coherent basic units nested within a hierarchical multilevel society. Using 29023 photographs collected over 6 years, we examined the association patterns of 198 individuals combining clustering, social network structure, and temporal patterns of association analysis. The Icelandic population had largely weak but non-random associations, which were not completely assorted by known ranging patterns. A fission–fusion dynamic of constant and temporary associations was observed but this was not due to permanent units joining. The population-level society was significantly structured but not in a clear hierarchical tier system. Social clusters were highly diverse in complexity and there were indications of subsclusters. There was no indication of dispersal nor strong sex differences in associations. These results indicate that the Icelandic herring-eating killer whale population has a multilevel social structure without clear hierarchical tiers or nested coherent social units, different from other populations of killer whales. We suggest that local ecological context, such as the characteristics of the specific target prey (e.g., predictability, biomass, and density) and subsequent foraging strategies may strongly influence killer whale social association patterns. Association matrix and individual supplementary details of Icelandic killer whalesFirst sheet with details for each individual (sex-age class, movement pattern, number of records - number of photographs -, number of total days sampled ... Dataset Iceland Killer Whale Orca Orcinus orca Killer whale Unknown Pacific |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care multilevel societies Social structure orca hierarchical structure ecological context killer whale Orcinus orca Iceland psy envir |
spellingShingle |
Life sciences medicine and health care multilevel societies Social structure orca hierarchical structure ecological context killer whale Orcinus orca Iceland psy envir Tavares, Sara B. Samarra, Filipa I.P. Miller, Patrick J.O. Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics |
topic_facet |
Life sciences medicine and health care multilevel societies Social structure orca hierarchical structure ecological context killer whale Orcinus orca Iceland psy envir |
description |
Non-social factors can influence animal social structure. In killer whales (Orcinus orca), fish- versus mammal-eating ecological differences are regarded as key ecological drivers of their multilevel society, including group size, but the potential importance of specific target prey remains unclear. Here, we investigate the social structure of herring-eating killer whales in Iceland and compare it to the described social structures of primarily salmon- and seal-eating populations in the Northeast Pacific, which form stable coherent basic units nested within a hierarchical multilevel society. Using 29023 photographs collected over 6 years, we examined the association patterns of 198 individuals combining clustering, social network structure, and temporal patterns of association analysis. The Icelandic population had largely weak but non-random associations, which were not completely assorted by known ranging patterns. A fission–fusion dynamic of constant and temporary associations was observed but this was not due to permanent units joining. The population-level society was significantly structured but not in a clear hierarchical tier system. Social clusters were highly diverse in complexity and there were indications of subsclusters. There was no indication of dispersal nor strong sex differences in associations. These results indicate that the Icelandic herring-eating killer whale population has a multilevel social structure without clear hierarchical tiers or nested coherent social units, different from other populations of killer whales. We suggest that local ecological context, such as the characteristics of the specific target prey (e.g., predictability, biomass, and density) and subsequent foraging strategies may strongly influence killer whale social association patterns. Association matrix and individual supplementary details of Icelandic killer whalesFirst sheet with details for each individual (sex-age class, movement pattern, number of records - number of photographs -, number of total days sampled ... |
format |
Dataset |
author |
Tavares, Sara B. Samarra, Filipa I.P. Miller, Patrick J.O. |
author_facet |
Tavares, Sara B. Samarra, Filipa I.P. Miller, Patrick J.O. |
author_sort |
Tavares, Sara B. |
title |
Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics |
title_short |
Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics |
title_full |
Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics |
title_fullStr |
Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics |
title_full_unstemmed |
Data from: A multilevel society of herring-eating killer whales indicates adaptation to prey characteristics |
title_sort |
data from: a multilevel society of herring-eating killer whales indicates adaptation to prey characteristics |
publishDate |
2021 |
url |
https://doi.org/10.5061/dryad.j619s |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Iceland Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Iceland Killer Whale Orca Orcinus orca Killer whale |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96350 10.5061/dryad.j619s oai:easy.dans.knaw.nl:easy-dataset:96350 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.j619s https://dx.doi.org/10.5061/dryad.j619s |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.j619s |
_version_ |
1766039276243386368 |