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dc.contributor.author
Raya Rey, Andrea Nélida
dc.contributor.author
Pütz, Klemens
dc.contributor.author
Simeone, Alejandro
dc.contributor.author
Hiriart Bertrand, Luciano
dc.contributor.author
Reyes Arriagada, Ronnie
dc.contributor.author
Riquelme, Victoria
dc.contributor.author
Lüthi, Benno
dc.date.available
2017-10-17T18:26:55Z
dc.date.issued
2013-05
dc.identifier.citation
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
dc.identifier.issn
0158-4197
dc.identifier.uri
http://hdl.handle.net/11336/26735
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Csiro Publishing
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Chile
dc.subject
Diving
dc.subject
Segregation
dc.subject
Spatial Ecology
dc.subject
Spheniscidae
dc.subject.classification
Bioquímica y Biología Molecular
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Comparative foraging behaviour of sympatric Humboldt and Magellanic Penguins reveals species-specific and sex-specific strategies
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2015-06-11T18:20:33Z
dc.journal.volume
113
dc.journal.number
2
dc.journal.pagination
145-153
dc.journal.pais
Australia
dc.journal.ciudad
Clayton
dc.description.fil
Fil: Raya Rey, Andrea Nélida. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Pütz, Klemens. Antarctic Research Trust; Alemania
dc.description.fil
Fil: Simeone, Alejandro. Universidad Andrés Bello; Argentina
dc.description.fil
Fil: Hiriart Bertrand, Luciano. Universidad Andrés Bello; Chile. University of California at San Diego; Estados Unidos
dc.description.fil
Fil: Reyes Arriagada, Ronnie. Universidad Austral de Chile; Chile. Universidad de Magallanes; Chile
dc.description.fil
Fil: Riquelme, Victoria. Universidad de Magallanes; Chile. Universidad Austral de Chile; Chile
dc.description.fil
Fil: Lüthi, Benno. Antarctic Research Trust; Suiza
dc.journal.title
Emu
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1071/MU12040
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/mu/MU12040


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