Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago
Abstract Killer whales ( Orcinus orca ) have strong social matrilineal bonds and form groups and long‐lasting associations, but little is known about their population or social structure in an equatorial setting such as the waters around the Galápagos Islands. Using 91 encounters and identification...
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crwiley:10.1111/mms.12672 2023-12-03T10:28:37+01:00 Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago Denkinger, Judith Alarcon, Daniela Espinosa, Bitinia Fowler, Lynn Manning, Cindy Oña, Javier Palacios, Daniel M. 2020 http://dx.doi.org/10.1111/mms.12672 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12672 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12672 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12672 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 36, issue 3, page 774-785 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2020 crwiley https://doi.org/10.1111/mms.12672 2023-11-09T14:34:39Z Abstract Killer whales ( Orcinus orca ) have strong social matrilineal bonds and form groups and long‐lasting associations, but little is known about their population or social structure in an equatorial setting such as the waters around the Galápagos Islands. Using 91 encounters and identification photographs from 1991 to 2017, we identified 64 killer whales of which 18 individuals were locals with high resighting rates. Group size was small, ranging from 1 to 15 animals, with 69% of the groups containing four or fewer animals. Using social network analysis (SOCPROG 2.7) whales grouped into three distinct units and one loose association with frequent exchange between different groups. One male–male unit showed a strong association (association strength = 0.55). Overall, associations lasted over at least 3 years. Our data give first evidence of a loose social organization of Galápagos killer whales, similar to fission‐fusion societies. Article in Journal/Newspaper Orca Orcinus orca Wiley Online Library (via Crossref) Marine Mammal Science 36 3 774 785 |
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Open Polar |
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Wiley Online Library (via Crossref) |
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language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Denkinger, Judith Alarcon, Daniela Espinosa, Bitinia Fowler, Lynn Manning, Cindy Oña, Javier Palacios, Daniel M. Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Killer whales ( Orcinus orca ) have strong social matrilineal bonds and form groups and long‐lasting associations, but little is known about their population or social structure in an equatorial setting such as the waters around the Galápagos Islands. Using 91 encounters and identification photographs from 1991 to 2017, we identified 64 killer whales of which 18 individuals were locals with high resighting rates. Group size was small, ranging from 1 to 15 animals, with 69% of the groups containing four or fewer animals. Using social network analysis (SOCPROG 2.7) whales grouped into three distinct units and one loose association with frequent exchange between different groups. One male–male unit showed a strong association (association strength = 0.55). Overall, associations lasted over at least 3 years. Our data give first evidence of a loose social organization of Galápagos killer whales, similar to fission‐fusion societies. |
format |
Article in Journal/Newspaper |
author |
Denkinger, Judith Alarcon, Daniela Espinosa, Bitinia Fowler, Lynn Manning, Cindy Oña, Javier Palacios, Daniel M. |
author_facet |
Denkinger, Judith Alarcon, Daniela Espinosa, Bitinia Fowler, Lynn Manning, Cindy Oña, Javier Palacios, Daniel M. |
author_sort |
Denkinger, Judith |
title |
Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago |
title_short |
Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago |
title_full |
Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago |
title_fullStr |
Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago |
title_full_unstemmed |
Social structure of killer whales (<scp> Orcinus orca </scp>) in a variable low‐latitude environment, the Galápagos Archipelago |
title_sort |
social structure of killer whales (<scp> orcinus orca </scp>) in a variable low‐latitude environment, the galápagos archipelago |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/mms.12672 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmms.12672 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12672 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12672 |
genre |
Orca Orcinus orca |
genre_facet |
Orca Orcinus orca |
op_source |
Marine Mammal Science volume 36, issue 3, page 774-785 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mms.12672 |
container_title |
Marine Mammal Science |
container_volume |
36 |
container_issue |
3 |
container_start_page |
774 |
op_container_end_page |
785 |
_version_ |
1784253394934824960 |