Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies

Autores
Raya Rey, Andrea Nélida; Pütz, Klemens; Simeone, Alejandro; Hiriart Bertrand, Luciano; Reyes Arriagada, Ronnie; Riquelme, Victoria; Lüthi, Benno
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
How closely related marine organisms mitigate competition for resources while foraging at sea is not well understood, particularly the relative importance of interspecific and intraspecific mitigation strategies. Using location and time–depth data, we investigated species-specific and sex-specific foraging areas and diving behaviour of the closely related Humboldt (Spheniscus humboldti) and Magellanic (S. magellanicus) Penguins breeding in sympatry at Islotes Puñihuil in southern Chile during the chick-rearing period. The average duration of foraging trips was <20 h and did not differ significantly between species or between sexes of each species. Magellanic Penguins made significantly deeper and longer dives than Humboldt Penguins. Males of both species made significantly longer dives than females. Total distance travelled per foraging trip was significantly greater for males than for females, and females made more direct trips (less sinuous) than males. Foraging effort was concentrated in waters up to 15 km to the west and south-west of the colony. The overlap in density contours was lower between species than between sexes within a species. In general, dive characteristics and foraging areas differed more between Magellanic and Humboldt Penguins than between the sexes of each species. In contrast to the findings of studies of flying seabirds, the foraging behaviour of these penguins differs more between species than between sexes.
Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Pütz, Klemens. Antarctic Research Trust; Alemania
Fil: Simeone, Alejandro. Universidad Andrés Bello; Argentina
Fil: Hiriart Bertrand, Luciano. Universidad Andrés Bello; Chile. University of California at San Diego; Estados Unidos
Fil: Reyes Arriagada, Ronnie. Universidad Austral de Chile; Chile. Universidad de Magallanes; Chile
Fil: Riquelme, Victoria. Universidad de Magallanes; Chile. Universidad Austral de Chile; Chile
Fil: Lüthi, Benno. Antarctic Research Trust; Suiza
Materia
Chile
Diving
Segregation
Spatial Ecology
Spheniscidae
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/26735
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/26735
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategiesRaya Rey, Andrea NélidaPütz, KlemensSimeone, AlejandroHiriart Bertrand, LucianoReyes Arriagada, RonnieRiquelme, VictoriaLüthi, BennoChileDivingSegregationSpatial EcologySpheniscidaehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1How closely related marine organisms mitigate competition for resources while foraging at sea is not well understood, particularly the relative importance of interspecific and intraspecific mitigation strategies. Using location and time–depth data, we investigated species-specific and sex-specific foraging areas and diving behaviour of the closely related Humboldt (Spheniscus humboldti) and Magellanic (S. magellanicus) Penguins breeding in sympatry at Islotes Puñihuil in southern Chile during the chick-rearing period. The average duration of foraging trips was <20 h and did not differ significantly between species or between sexes of each species. Magellanic Penguins made significantly deeper and longer dives than Humboldt Penguins. Males of both species made significantly longer dives than females. Total distance travelled per foraging trip was significantly greater for males than for females, and females made more direct trips (less sinuous) than males. Foraging effort was concentrated in waters up to 15 km to the west and south-west of the colony. The overlap in density contours was lower between species than between sexes within a species. In general, dive characteristics and foraging areas differed more between Magellanic and Humboldt Penguins than between the sexes of each species. In contrast to the findings of studies of flying seabirds, the foraging behaviour of these penguins differs more between species than between sexes.Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Pütz, Klemens. Antarctic Research Trust; AlemaniaFil: Simeone, Alejandro. Universidad Andrés Bello; ArgentinaFil: Hiriart Bertrand, Luciano. Universidad Andrés Bello; Chile. University of California at San Diego; Estados UnidosFil: Reyes Arriagada, Ronnie. Universidad Austral de Chile; Chile. Universidad de Magallanes; ChileFil: Riquelme, Victoria. Universidad de Magallanes; Chile. Universidad Austral de Chile; ChileFil: Lüthi, Benno. Antarctic Research Trust; SuizaCsiro Publishing2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/26735Raya Rey, Andrea Nélida; Pütz, Klemens; Simeone, Alejandro; Hiriart Bertrand, Luciano; Reyes Arriagada, Ronnie; et al.; Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies; Csiro Publishing; Emu; 113; 2; 5-2013; 145-1530158-4197enginfo:eu-repo/semantics/altIdentifier/doi/10.1071/MU12040info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/mu/MU12040info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:21:51Zoai:ri.conicet.gov.ar:11336/26735instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:21:51.441CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
title Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
spellingShingle Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
Raya Rey, Andrea Nélida
Chile
Diving
Segregation
Spatial Ecology
Spheniscidae
title_short Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
title_full Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
title_fullStr Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
title_full_unstemmed Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
title_sort Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
dc.creator.none.fl_str_mv Raya Rey, Andrea Nélida
Pütz, Klemens
Simeone, Alejandro
Hiriart Bertrand, Luciano
Reyes Arriagada, Ronnie
Riquelme, Victoria
Lüthi, Benno
author Raya Rey, Andrea Nélida
author_facet Raya Rey, Andrea Nélida
Pütz, Klemens
Simeone, Alejandro
Hiriart Bertrand, Luciano
Reyes Arriagada, Ronnie
Riquelme, Victoria
Lüthi, Benno
author_role author
author2 Pütz, Klemens
Simeone, Alejandro
Hiriart Bertrand, Luciano
Reyes Arriagada, Ronnie
Riquelme, Victoria
Lüthi, Benno
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Chile
Diving
Segregation
Spatial Ecology
Spheniscidae
topic Chile
Diving
Segregation
Spatial Ecology
Spheniscidae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv How closely related marine organisms mitigate competition for resources while foraging at sea is not well understood, particularly the relative importance of interspecific and intraspecific mitigation strategies. Using location and time–depth data, we investigated species-specific and sex-specific foraging areas and diving behaviour of the closely related Humboldt (Spheniscus humboldti) and Magellanic (S. magellanicus) Penguins breeding in sympatry at Islotes Puñihuil in southern Chile during the chick-rearing period. The average duration of foraging trips was <20 h and did not differ significantly between species or between sexes of each species. Magellanic Penguins made significantly deeper and longer dives than Humboldt Penguins. Males of both species made significantly longer dives than females. Total distance travelled per foraging trip was significantly greater for males than for females, and females made more direct trips (less sinuous) than males. Foraging effort was concentrated in waters up to 15 km to the west and south-west of the colony. The overlap in density contours was lower between species than between sexes within a species. In general, dive characteristics and foraging areas differed more between Magellanic and Humboldt Penguins than between the sexes of each species. In contrast to the findings of studies of flying seabirds, the foraging behaviour of these penguins differs more between species than between sexes.
Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Pütz, Klemens. Antarctic Research Trust; Alemania
Fil: Simeone, Alejandro. Universidad Andrés Bello; Argentina
Fil: Hiriart Bertrand, Luciano. Universidad Andrés Bello; Chile. University of California at San Diego; Estados Unidos
Fil: Reyes Arriagada, Ronnie. Universidad Austral de Chile; Chile. Universidad de Magallanes; Chile
Fil: Riquelme, Victoria. Universidad de Magallanes; Chile. Universidad Austral de Chile; Chile
Fil: Lüthi, Benno. Antarctic Research Trust; Suiza
description How closely related marine organisms mitigate competition for resources while foraging at sea is not well understood, particularly the relative importance of interspecific and intraspecific mitigation strategies. Using location and time–depth data, we investigated species-specific and sex-specific foraging areas and diving behaviour of the closely related Humboldt (Spheniscus humboldti) and Magellanic (S. magellanicus) Penguins breeding in sympatry at Islotes Puñihuil in southern Chile during the chick-rearing period. The average duration of foraging trips was <20 h and did not differ significantly between species or between sexes of each species. Magellanic Penguins made significantly deeper and longer dives than Humboldt Penguins. Males of both species made significantly longer dives than females. Total distance travelled per foraging trip was significantly greater for males than for females, and females made more direct trips (less sinuous) than males. Foraging effort was concentrated in waters up to 15 km to the west and south-west of the colony. The overlap in density contours was lower between species than between sexes within a species. In general, dive characteristics and foraging areas differed more between Magellanic and Humboldt Penguins than between the sexes of each species. In contrast to the findings of studies of flying seabirds, the foraging behaviour of these penguins differs more between species than between sexes.
publishDate 2013
dc.date.none.fl_str_mv 2013-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/26735
Raya Rey, Andrea Nélida; Pütz, Klemens; Simeone, Alejandro; Hiriart Bertrand, Luciano; Reyes Arriagada, Ronnie; et al.; Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies; Csiro Publishing; Emu; 113; 2; 5-2013; 145-153
0158-4197
url http://hdl.handle.net/11336/26735
identifier_str_mv Raya Rey, Andrea Nélida; Pütz, Klemens; Simeone, Alejandro; Hiriart Bertrand, Luciano; Reyes Arriagada, Ronnie; et al.; Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies; Csiro Publishing; Emu; 113; 2; 5-2013; 145-153
0158-4197
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1071/MU12040
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/mu/MU12040
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Csiro Publishing
publisher.none.fl_str_mv Csiro Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842981201683415040
score 12.48226

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