Social network correlates of food availability in an endangered population of killer whales, Orcinus orca
For the majority of social species, group composition is dynamic, and individuals are interconnected in a heterogeneous social network. Social network structure has far-reaching implications for the ecology of individuals and populations. However, we have little understanding of how ecological varia...
Published in: | Animal Behaviour |
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Language: | English |
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ftunivhullir:oai:hull-repository.worktribe.com:417671 2024-09-15T18:16:44+00:00 Social network correlates of food availability in an endangered population of killer whales, Orcinus orca van Ginneken, Astrid Croft, Darren P. Franks, Daniel W. Foster, Emma A. Balcomb, Ken C. Parsons, Kim M. Morrell, Lesley Morrell, Lesley J. 2012-01-20 https://hull-repository.worktribe.com/output/417671 https://doi.org/10.1016/j.anbehav.2011.12.021 English eng Elsevier https://hull-repository.worktribe.com/output/417671 Animal behaviour Volume 83 Issue 3 Pagination 731-736 doi:https://doi.org/10.1016/j.anbehav.2011.12.021 0003-3472 doi:10.1016/j.anbehav.2011.12.021 Association Chinook salmon Clustering Foraging Group living Killer whale Orcinus orca Prey Social dynamics Social organization Journal Article 2012 ftunivhullir https://doi.org/10.1016/j.anbehav.2011.12.021 2024-07-22T14:05:20Z For the majority of social species, group composition is dynamic, and individuals are interconnected in a heterogeneous social network. Social network structure has far-reaching implications for the ecology of individuals and populations. However, we have little understanding of how ecological variables shape this structure. We used a long-term data set (1984-2007) to examine the relationship between food availability and social network structure in the endangered southern resident killer whales. During the summer months individuals in this population feed primarily on chinook salmon, Oncorhynchus tshawytscha, which show annual variation in abundance. We tested the hypothesis that temporal variation in chinook salmon will correlate with variation in social network structure. Using a null model that controlled for population demography, group size and sampling effort, we found a significant relationship between the connectivity of the social network and salmon abundance, with a more interconnected social network in years of high salmon abundance. Our results demonstrate that resource availability may be an important determinant of social network structure. Given the central importance of the social network for population processes such as the maintenance of cooperation and the transmission of information and disease, a change in social network structure caused by a change in food availability may have significant ecological and evolutionary consequences. © 2012 The Association for the Study of Animal Behaviour. Article in Journal/Newspaper Killer Whale Orca Orcinus orca Killer whale University of Hull: Repository@Hull Animal Behaviour 83 3 731 736 |
institution |
Open Polar |
collection |
University of Hull: Repository@Hull |
op_collection_id |
ftunivhullir |
language |
English |
topic |
Association Chinook salmon Clustering Foraging Group living Killer whale Orcinus orca Prey Social dynamics Social organization |
spellingShingle |
Association Chinook salmon Clustering Foraging Group living Killer whale Orcinus orca Prey Social dynamics Social organization van Ginneken, Astrid Croft, Darren P. Franks, Daniel W. Foster, Emma A. Balcomb, Ken C. Parsons, Kim M. Morrell, Lesley Morrell, Lesley J. Social network correlates of food availability in an endangered population of killer whales, Orcinus orca |
topic_facet |
Association Chinook salmon Clustering Foraging Group living Killer whale Orcinus orca Prey Social dynamics Social organization |
description |
For the majority of social species, group composition is dynamic, and individuals are interconnected in a heterogeneous social network. Social network structure has far-reaching implications for the ecology of individuals and populations. However, we have little understanding of how ecological variables shape this structure. We used a long-term data set (1984-2007) to examine the relationship between food availability and social network structure in the endangered southern resident killer whales. During the summer months individuals in this population feed primarily on chinook salmon, Oncorhynchus tshawytscha, which show annual variation in abundance. We tested the hypothesis that temporal variation in chinook salmon will correlate with variation in social network structure. Using a null model that controlled for population demography, group size and sampling effort, we found a significant relationship between the connectivity of the social network and salmon abundance, with a more interconnected social network in years of high salmon abundance. Our results demonstrate that resource availability may be an important determinant of social network structure. Given the central importance of the social network for population processes such as the maintenance of cooperation and the transmission of information and disease, a change in social network structure caused by a change in food availability may have significant ecological and evolutionary consequences. © 2012 The Association for the Study of Animal Behaviour. |
format |
Article in Journal/Newspaper |
author |
van Ginneken, Astrid Croft, Darren P. Franks, Daniel W. Foster, Emma A. Balcomb, Ken C. Parsons, Kim M. Morrell, Lesley Morrell, Lesley J. |
author_facet |
van Ginneken, Astrid Croft, Darren P. Franks, Daniel W. Foster, Emma A. Balcomb, Ken C. Parsons, Kim M. Morrell, Lesley Morrell, Lesley J. |
author_sort |
van Ginneken, Astrid |
title |
Social network correlates of food availability in an endangered population of killer whales, Orcinus orca |
title_short |
Social network correlates of food availability in an endangered population of killer whales, Orcinus orca |
title_full |
Social network correlates of food availability in an endangered population of killer whales, Orcinus orca |
title_fullStr |
Social network correlates of food availability in an endangered population of killer whales, Orcinus orca |
title_full_unstemmed |
Social network correlates of food availability in an endangered population of killer whales, Orcinus orca |
title_sort |
social network correlates of food availability in an endangered population of killer whales, orcinus orca |
publisher |
Elsevier |
publishDate |
2012 |
url |
https://hull-repository.worktribe.com/output/417671 https://doi.org/10.1016/j.anbehav.2011.12.021 |
genre |
Killer Whale Orca Orcinus orca Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Killer whale |
op_relation |
https://hull-repository.worktribe.com/output/417671 Animal behaviour Volume 83 Issue 3 Pagination 731-736 doi:https://doi.org/10.1016/j.anbehav.2011.12.021 0003-3472 doi:10.1016/j.anbehav.2011.12.021 |
op_doi |
https://doi.org/10.1016/j.anbehav.2011.12.021 |
container_title |
Animal Behaviour |
container_volume |
83 |
container_issue |
3 |
container_start_page |
731 |
op_container_end_page |
736 |
_version_ |
1810454740886093824 |