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dc.contributor.author
Degrati, Mariana
dc.contributor.author
Dans, Silvana Laura
dc.contributor.author
Garaffo, Griselda Valeria
dc.contributor.author
Crespo, Enrique Alberto
dc.date.available
2019-04-01T19:41:22Z
dc.date.issued
2012-09
dc.identifier.citation
Degrati, Mariana; Dans, Silvana Laura; Garaffo, Griselda Valeria; Crespo, Enrique Alberto; Diving for food: A switch of foraging strategy of dusky dolphins in Argentina; Springer Tokyo; Journal of Ethology; 30; 3; 9-2012; 361-367
dc.identifier.issn
0289-0771
dc.identifier.uri
http://hdl.handle.net/11336/72954
dc.description.abstract
During winter, dusky dolphins (Lagenorhynchus obscurus) were observed in coordinated diving apparently in a feeding activity, contrasting with the surface feeding observed during summer. The aim of this work consisted in analyzing the diving activity as an alternative foraging strategy in Argentine dusky dolphins, based on sequential analysis. The study area was Golfo Nuevo, located in Northern Patagonia, Argentina. Random transects were surveyed by a research boat from 2001 to 2007. During behavioral sampling, group members were observed continuously and the predominant activity was recorded at 2-min intervals. Six predominant activities were identified. Each 2-min interval was classified according to the activity at the previous interval (preceding activity), the activity at the interval (following activity), and the season (cold or warm). Z scores were calculated and then used to construct sequence diagrams. An association between diving and milling behavior was observed. This could be another foraging tactics different to the surface foraging sequences and this could be related with the distribution or abundance of preys.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Tokyo
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Behavioral Sequences
dc.subject
Diving
dc.subject
Dusky Dolphins
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Foraging Strategy
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Patagonia
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-14T13:36:15Z
dc.identifier.eissn
1439-5444
dc.journal.volume
30
dc.journal.number
3
dc.journal.pagination
361-367
dc.journal.pais
Japón
dc.journal.ciudad
Tokyo
dc.description.fil
Fil: Degrati, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
dc.description.fil
Fil: Dans, Silvana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
dc.description.fil
Fil: Garaffo, Griselda Valeria. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
dc.journal.title
Journal of Ethology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10164-012-0333-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10164-012-0333-1
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