Cannibalism in Eurasian otters (Lutra lutra)

The Eurasian otter, Lutra lutra, faced adversity in Europe in the 1950s and 1960s due to hunting, declining fish populations and the American mink invasion. Slow recovery since the 1970s led to a ‘Near Threatened’ in the IUCN Red List status, but recent pollution, fishing pressure and habitat loss c...

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Detalles Bibliográficos
Autores: Calvo Fernández, Cristina, Sorribes, Elisa L., Garrido Moreno, Jesús, Martín Maldonado, Bárbara
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/117964
Acceso en línea:https://hdl.handle.net/20.500.14352/117964
Access Level:acceso abierto
Palabra clave:636.09
Arctic
Behaviour
Cannibalism
Lutra lutra
Otter
Ciencias Biomédicas
24 Ciencias de la Vida
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spelling Cannibalism in Eurasian otters (Lutra lutra)Calvo Fernández, CristinaSorribes, Elisa L.Garrido Moreno, JesúsMartín Maldonado, Bárbara636.09ArcticBehaviourCannibalismLutra lutraOtterCiencias Biomédicas24 Ciencias de la VidaThe Eurasian otter, Lutra lutra, faced adversity in Europe in the 1950s and 1960s due to hunting, declining fish populations and the American mink invasion. Slow recovery since the 1970s led to a ‘Near Threatened’ in the IUCN Red List status, but recent pollution, fishing pressure and habitat loss caused slight population declines. Otters, known for aquatic habits, are mainly piscivorous and exhibit solitaire or social behaviours. Infanticide with parent-offspring cannibalism has been previously reported in otter species, but although cannibalism has been suggested, it has not been documented before. This study presents the first documented case of cannibalism among free-living Eurasian otters observed in northern Norway. Some authors described cannibalism as an opportunistic resource-efficient behaviour in several mammal species, offering benefits like weight gain and reduced competition, challenging the view of adverse health effects. Factors leading to otter cannibalism include ecological changes, resource competition with other species and global warming and overfishing practices contributing to increased otter competition. Further studies will be vital to answering intriguing questions about the implications of cannibalism for otter conservation.WileyUniversidad Complutense de Madrid20242024-10-0120242024-10-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/117964reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1179642026-06-02T12:44:21Z
dc.title.none.fl_str_mv Cannibalism in Eurasian otters (Lutra lutra)
title Cannibalism in Eurasian otters (Lutra lutra)
spellingShingle Cannibalism in Eurasian otters (Lutra lutra)
Calvo Fernández, Cristina
636.09
Arctic
Behaviour
Cannibalism
Lutra lutra
Otter
Ciencias Biomédicas
24 Ciencias de la Vida
title_short Cannibalism in Eurasian otters (Lutra lutra)
title_full Cannibalism in Eurasian otters (Lutra lutra)
title_fullStr Cannibalism in Eurasian otters (Lutra lutra)
title_full_unstemmed Cannibalism in Eurasian otters (Lutra lutra)
title_sort Cannibalism in Eurasian otters (Lutra lutra)
dc.creator.none.fl_str_mv Calvo Fernández, Cristina
Sorribes, Elisa L.
Garrido Moreno, Jesús
Martín Maldonado, Bárbara
author Calvo Fernández, Cristina
author_facet Calvo Fernández, Cristina
Sorribes, Elisa L.
Garrido Moreno, Jesús
Martín Maldonado, Bárbara
author_role author
author2 Sorribes, Elisa L.
Garrido Moreno, Jesús
Martín Maldonado, Bárbara
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 636.09
Arctic
Behaviour
Cannibalism
Lutra lutra
Otter
Ciencias Biomédicas
24 Ciencias de la Vida
topic 636.09
Arctic
Behaviour
Cannibalism
Lutra lutra
Otter
Ciencias Biomédicas
24 Ciencias de la Vida
description The Eurasian otter, Lutra lutra, faced adversity in Europe in the 1950s and 1960s due to hunting, declining fish populations and the American mink invasion. Slow recovery since the 1970s led to a ‘Near Threatened’ in the IUCN Red List status, but recent pollution, fishing pressure and habitat loss caused slight population declines. Otters, known for aquatic habits, are mainly piscivorous and exhibit solitaire or social behaviours. Infanticide with parent-offspring cannibalism has been previously reported in otter species, but although cannibalism has been suggested, it has not been documented before. This study presents the first documented case of cannibalism among free-living Eurasian otters observed in northern Norway. Some authors described cannibalism as an opportunistic resource-efficient behaviour in several mammal species, offering benefits like weight gain and reduced competition, challenging the view of adverse health effects. Factors leading to otter cannibalism include ecological changes, resource competition with other species and global warming and overfishing practices contributing to increased otter competition. Further studies will be vital to answering intriguing questions about the implications of cannibalism for otter conservation.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-10-01
2024
2024-10-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/117964
url https://hdl.handle.net/20.500.14352/117964
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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