Diving for food: A switch of foraging strategy of dusky dolphins in Argentina

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...

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Detalles Bibliográficos
Autores: Degrati, Mariana, Dans, Silvana Laura, Garaffo, Griselda Valeria, Crespo, Enrique Alberto
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/72954
Acceso en línea:http://hdl.handle.net/11336/72954
Access Level:acceso abierto
Palabra clave:Behavioral Sequences
Diving
Dusky Dolphins
Foraging Strategy
Patagonia
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
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network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Diving for food: A switch of foraging strategy of dusky dolphins in ArgentinaDegrati, MarianaDans, Silvana LauraGaraffo, Griselda ValeriaCrespo, Enrique AlbertoBehavioral SequencesDivingDusky DolphinsForaging StrategyPatagoniahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1During 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.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; ArgentinaFil: 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; ArgentinaFil: Garaffo, Griselda Valeria. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: 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; ArgentinaSpringer Tokyo2012-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72954Degrati, 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; 361-3670289-07711439-5444CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10164-012-0333-1info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10164-012-0333-1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:28:33Zoai:ri.conicet.gov.ar:11336/72954instacron: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:34982024-05-08 14:28:34.22CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
title Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
spellingShingle Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
Degrati, Mariana
Behavioral Sequences
Diving
Dusky Dolphins
Foraging Strategy
Patagonia
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
title_full Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
title_fullStr Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
title_full_unstemmed Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
title_sort Diving for food: A switch of foraging strategy of dusky dolphins in Argentina
dc.creator.none.fl_str_mv Degrati, Mariana
Dans, Silvana Laura
Garaffo, Griselda Valeria
Crespo, Enrique Alberto
author Degrati, Mariana
author_facet Degrati, Mariana
Dans, Silvana Laura
Garaffo, Griselda Valeria
Crespo, Enrique Alberto
author_role author
author2 Dans, Silvana Laura
Garaffo, Griselda Valeria
Crespo, Enrique Alberto
author2_role author
author
author
dc.subject.none.fl_str_mv Behavioral Sequences
Diving
Dusky Dolphins
Foraging Strategy
Patagonia
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic Behavioral Sequences
Diving
Dusky Dolphins
Foraging Strategy
Patagonia
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description 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.
publishDate 2012
dc.date.none.fl_str_mv 2012-09
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/11336/72954
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
0289-0771
1439-5444
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72954
identifier_str_mv 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
0289-0771
1439-5444
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10164-012-0333-1
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10164-012-0333-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer Tokyo
publisher.none.fl_str_mv Springer Tokyo
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
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score 15,812429

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