Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula

In Mediterranean rocky shores, the black sea urchin Arbacia lixula is often associated with communities dominated by encrusting corallines, devoid of fleshy algae. While it is commonly known as a diurnal herbivore, this species also migrates at night from hidden to more exposed habitats. Here, we pr...

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Detalhes bibliográficos
Autores: Mariani, Simone, Pinedo, Susana, Jordana, E., Cefalì, Maria Elena, Torras, Xavier, Bagur, Marina, Verdura, Jana, Ballesteros, Enric
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/349187
Acesso em linha:http://hdl.handle.net/10261/349187
https://api.elsevier.com/content/abstract/scopus_id/85169612565
Access Level:acceso abierto
Palavra-chave:Antipredator responses
Mediterranean Sea
overgrazing
sea urchin barrens
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spelling Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixulaMariani, SimonePinedo, SusanaJordana, E.Cefalì, Maria ElenaTorras, XavierBagur, MarinaVerdura, JanaBallesteros, EnricAntipredator responsesMediterranean Seaovergrazingsea urchin barrensIn Mediterranean rocky shores, the black sea urchin Arbacia lixula is often associated with communities dominated by encrusting corallines, devoid of fleshy algae. While it is commonly known as a diurnal herbivore, this species also migrates at night from hidden to more exposed habitats. Here, we provide the first experimental evidence of an adjustment to a predominant nocturnal behaviour in a population of A. lixula. Sea urchin densities changed from nearly zero during daytime to more than 16 urchins m−2 at night in treatment plots where the sea urchins were removed. We suggest that the observed behaviour was triggered by our experimental manipulations and was a response to the presence of dead conspecifics and small predatory fishes attracted by the urchin culling. Further research is needed to assess whether our findings can be generalised to the behaviour of A. lixula in areas where sea urchins are under strong pressure from diurnal predators. In these cases, it is important to perform sea urchin density counts at night to avoid misleading assessments about the herbivore pressure in a littoral area.Financial support came from INTRAMURAL CSIC 201330E065.Peer reviewedWiley-BlackwellConsejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/349187https://api.elsevier.com/content/abstract/scopus_id/85169612565reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)EspañolEcology and Evolutionhttps://doi.org/10.1002/ece3.10428Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3491872026-05-22T06:33:51Z
dc.title.none.fl_str_mv Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
title Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
spellingShingle Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
Mariani, Simone
Antipredator responses
Mediterranean Sea
overgrazing
sea urchin barrens
title_short Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
title_full Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
title_fullStr Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
title_full_unstemmed Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
title_sort Grazing in the dark: A behavioural adjustment in a population of the black sea urchin Arbacia lixula
dc.creator.none.fl_str_mv Mariani, Simone
Pinedo, Susana
Jordana, E.
Cefalì, Maria Elena
Torras, Xavier
Bagur, Marina
Verdura, Jana
Ballesteros, Enric
author Mariani, Simone
author_facet Mariani, Simone
Pinedo, Susana
Jordana, E.
Cefalì, Maria Elena
Torras, Xavier
Bagur, Marina
Verdura, Jana
Ballesteros, Enric
author_role author
author2 Pinedo, Susana
Jordana, E.
Cefalì, Maria Elena
Torras, Xavier
Bagur, Marina
Verdura, Jana
Ballesteros, Enric
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Antipredator responses
Mediterranean Sea
overgrazing
sea urchin barrens
topic Antipredator responses
Mediterranean Sea
overgrazing
sea urchin barrens
description In Mediterranean rocky shores, the black sea urchin Arbacia lixula is often associated with communities dominated by encrusting corallines, devoid of fleshy algae. While it is commonly known as a diurnal herbivore, this species also migrates at night from hidden to more exposed habitats. Here, we provide the first experimental evidence of an adjustment to a predominant nocturnal behaviour in a population of A. lixula. Sea urchin densities changed from nearly zero during daytime to more than 16 urchins m−2 at night in treatment plots where the sea urchins were removed. We suggest that the observed behaviour was triggered by our experimental manipulations and was a response to the presence of dead conspecifics and small predatory fishes attracted by the urchin culling. Further research is needed to assess whether our findings can be generalised to the behaviour of A. lixula in areas where sea urchins are under strong pressure from diurnal predators. In these cases, it is important to perform sea urchin density counts at night to avoid misleading assessments about the herbivore pressure in a littoral area.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/349187
https://api.elsevier.com/content/abstract/scopus_id/85169612565
url http://hdl.handle.net/10261/349187
https://api.elsevier.com/content/abstract/scopus_id/85169612565
dc.language.none.fl_str_mv Español
language_invalid_str_mv Español
dc.relation.none.fl_str_mv Ecology and Evolution
https://doi.org/10.1002/ece3.10428
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,228081

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