Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia

Autores
Garaffo, Griselda Valeria; Dans, Silvana Laura; Pedraza, Susana Noemi; Degrati, Mariana; Schiavini, Adrian Carlos Miguel; González, Raul Alberto Candido; Crespo, Enrique Alberto
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Several species of small cetaceans inhabit the coastal area of Patagonia (Argentina), but little is known about their distribution and the degree of overlap between them. The goal of the present study was to build habitat-selection models for small cetaceans in order to assess areas of particular importance for the different species. These models were constructed using physiographic and remotely sensed variables. From 1994 to 2007, 13 aerial surveys were conducted along the Patagonian coast (from Golfo San Matías: 40° 40'-42°14' S, 65° 00'-63°47' W to Bahía de los Nodales: 48°00' S, 65°35' W). A grid of 0.5° × 0.5° cells was constructed for the study area. Each cell was characterized by environmental variables and by the encounter rate (ER) for each cetacean species. The ER of each species was investigated in relation to environmental variables using generalized linear models, and model averaging (multimodel inference) was used to obtain a predicted ER for the different species. The correlation between the ER of different species was analyzed by Spearman rank correlation. The environmental variables that were found to be significant predictors of species distribution differed between species. The ERs of dusky dolphin Lagenorhynchus obscurus and Peale's dolphin L. australis showed a positive relationship. Commerson's dolphin Cephalorhynchus commersonii presented a more coastal distribution than the other species, and individuals were more often found feeding in estuarine zones. Knowledge of the patterns of distribution of small cetaceans along the Patagonian coast provides baseline knowledge of how these species interact with each other and their environment. Such information should be considered when managing potential areas of conflict between coastal small cetaceans and human activities.
Fil: Garaffo, Griselda V.. Universidad Nacional de Mar del Plata; Argentina
Fil: Dans, Silvana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Pedraza, Susana N.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Degrati, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Schiavini, Adrian Carlos Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Wildlife Conservation Society Argentina; Argentina
Fil: González, Raul Alberto Candido. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Materia
DISTRIBUTION MODELING
DOLPHINS
GENERALIZED LINEAR MODEL
HABITAT SELECTION
PATAGONIA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/93439
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/93439
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Modeling habitat use for dusky dolphin and Commerson's dolphin in PatagoniaGaraffo, Griselda ValeriaDans, Silvana LauraPedraza, Susana NoemiDegrati, MarianaSchiavini, Adrian Carlos MiguelGonzález, Raul Alberto CandidoCrespo, Enrique AlbertoDISTRIBUTION MODELINGDOLPHINSGENERALIZED LINEAR MODELHABITAT SELECTIONPATAGONIAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Several species of small cetaceans inhabit the coastal area of Patagonia (Argentina), but little is known about their distribution and the degree of overlap between them. The goal of the present study was to build habitat-selection models for small cetaceans in order to assess areas of particular importance for the different species. These models were constructed using physiographic and remotely sensed variables. From 1994 to 2007, 13 aerial surveys were conducted along the Patagonian coast (from Golfo San Matías: 40° 40'-42°14' S, 65° 00'-63°47' W to Bahía de los Nodales: 48°00' S, 65°35' W). A grid of 0.5° × 0.5° cells was constructed for the study area. Each cell was characterized by environmental variables and by the encounter rate (ER) for each cetacean species. The ER of each species was investigated in relation to environmental variables using generalized linear models, and model averaging (multimodel inference) was used to obtain a predicted ER for the different species. The correlation between the ER of different species was analyzed by Spearman rank correlation. The environmental variables that were found to be significant predictors of species distribution differed between species. The ERs of dusky dolphin Lagenorhynchus obscurus and Peale's dolphin L. australis showed a positive relationship. Commerson's dolphin Cephalorhynchus commersonii presented a more coastal distribution than the other species, and individuals were more often found feeding in estuarine zones. Knowledge of the patterns of distribution of small cetaceans along the Patagonian coast provides baseline knowledge of how these species interact with each other and their environment. Such information should be considered when managing potential areas of conflict between coastal small cetaceans and human activities.Fil: Garaffo, Griselda V.. Universidad Nacional de Mar del Plata; ArgentinaFil: Dans, Silvana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Pedraza, Susana N.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Degrati, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Schiavini, Adrian Carlos Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Wildlife Conservation Society Argentina; ArgentinaFil: González, Raul Alberto Candido. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; ArgentinaFil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaInter-Research2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/93439Garaffo, Griselda Valeria; Dans, Silvana Laura; Pedraza, Susana Noemi; Degrati, Mariana; Schiavini, Adrian Carlos Miguel; et al.; Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia; Inter-Research; Marine Ecology Progress Series; 421; 1-2011; 217-2270171-86301616-1599CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3354/meps08912info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/meps/v421/p217-227/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:12:30Zoai:ri.conicet.gov.ar:11336/93439instacron: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:34982025-09-29 10:12:30.416CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
title Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
spellingShingle Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
Garaffo, Griselda Valeria
DISTRIBUTION MODELING
DOLPHINS
GENERALIZED LINEAR MODEL
HABITAT SELECTION
PATAGONIA
title_short Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
title_full Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
title_fullStr Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
title_full_unstemmed Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
title_sort Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia
dc.creator.none.fl_str_mv Garaffo, Griselda Valeria
Dans, Silvana Laura
Pedraza, Susana Noemi
Degrati, Mariana
Schiavini, Adrian Carlos Miguel
González, Raul Alberto Candido
Crespo, Enrique Alberto
author Garaffo, Griselda Valeria
author_facet Garaffo, Griselda Valeria
Dans, Silvana Laura
Pedraza, Susana Noemi
Degrati, Mariana
Schiavini, Adrian Carlos Miguel
González, Raul Alberto Candido
Crespo, Enrique Alberto
author_role author
author2 Dans, Silvana Laura
Pedraza, Susana Noemi
Degrati, Mariana
Schiavini, Adrian Carlos Miguel
González, Raul Alberto Candido
Crespo, Enrique Alberto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv DISTRIBUTION MODELING
DOLPHINS
GENERALIZED LINEAR MODEL
HABITAT SELECTION
PATAGONIA
topic DISTRIBUTION MODELING
DOLPHINS
GENERALIZED LINEAR MODEL
HABITAT SELECTION
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Several species of small cetaceans inhabit the coastal area of Patagonia (Argentina), but little is known about their distribution and the degree of overlap between them. The goal of the present study was to build habitat-selection models for small cetaceans in order to assess areas of particular importance for the different species. These models were constructed using physiographic and remotely sensed variables. From 1994 to 2007, 13 aerial surveys were conducted along the Patagonian coast (from Golfo San Matías: 40° 40'-42°14' S, 65° 00'-63°47' W to Bahía de los Nodales: 48°00' S, 65°35' W). A grid of 0.5° × 0.5° cells was constructed for the study area. Each cell was characterized by environmental variables and by the encounter rate (ER) for each cetacean species. The ER of each species was investigated in relation to environmental variables using generalized linear models, and model averaging (multimodel inference) was used to obtain a predicted ER for the different species. The correlation between the ER of different species was analyzed by Spearman rank correlation. The environmental variables that were found to be significant predictors of species distribution differed between species. The ERs of dusky dolphin Lagenorhynchus obscurus and Peale's dolphin L. australis showed a positive relationship. Commerson's dolphin Cephalorhynchus commersonii presented a more coastal distribution than the other species, and individuals were more often found feeding in estuarine zones. Knowledge of the patterns of distribution of small cetaceans along the Patagonian coast provides baseline knowledge of how these species interact with each other and their environment. Such information should be considered when managing potential areas of conflict between coastal small cetaceans and human activities.
Fil: Garaffo, Griselda V.. Universidad Nacional de Mar del Plata; Argentina
Fil: Dans, Silvana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Pedraza, Susana N.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Degrati, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Schiavini, Adrian Carlos Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina. Wildlife Conservation Society Argentina; Argentina
Fil: González, Raul Alberto Candido. Universidad Nacional del Comahue. Instituto de Biología Marina y Pesquera Almirante Storni; Argentina
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
description Several species of small cetaceans inhabit the coastal area of Patagonia (Argentina), but little is known about their distribution and the degree of overlap between them. The goal of the present study was to build habitat-selection models for small cetaceans in order to assess areas of particular importance for the different species. These models were constructed using physiographic and remotely sensed variables. From 1994 to 2007, 13 aerial surveys were conducted along the Patagonian coast (from Golfo San Matías: 40° 40'-42°14' S, 65° 00'-63°47' W to Bahía de los Nodales: 48°00' S, 65°35' W). A grid of 0.5° × 0.5° cells was constructed for the study area. Each cell was characterized by environmental variables and by the encounter rate (ER) for each cetacean species. The ER of each species was investigated in relation to environmental variables using generalized linear models, and model averaging (multimodel inference) was used to obtain a predicted ER for the different species. The correlation between the ER of different species was analyzed by Spearman rank correlation. The environmental variables that were found to be significant predictors of species distribution differed between species. The ERs of dusky dolphin Lagenorhynchus obscurus and Peale's dolphin L. australis showed a positive relationship. Commerson's dolphin Cephalorhynchus commersonii presented a more coastal distribution than the other species, and individuals were more often found feeding in estuarine zones. Knowledge of the patterns of distribution of small cetaceans along the Patagonian coast provides baseline knowledge of how these species interact with each other and their environment. Such information should be considered when managing potential areas of conflict between coastal small cetaceans and human activities.
publishDate 2011
dc.date.none.fl_str_mv 2011-01
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/11336/93439
Garaffo, Griselda Valeria; Dans, Silvana Laura; Pedraza, Susana Noemi; Degrati, Mariana; Schiavini, Adrian Carlos Miguel; et al.; Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia; Inter-Research; Marine Ecology Progress Series; 421; 1-2011; 217-227
0171-8630
1616-1599
CONICET Digital
CONICET
url http://hdl.handle.net/11336/93439
identifier_str_mv Garaffo, Griselda Valeria; Dans, Silvana Laura; Pedraza, Susana Noemi; Degrati, Mariana; Schiavini, Adrian Carlos Miguel; et al.; Modeling habitat use for dusky dolphin and Commerson's dolphin in Patagonia; Inter-Research; Marine Ecology Progress Series; 421; 1-2011; 217-227
0171-8630
1616-1599
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3354/meps08912
info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/meps/v421/p217-227/
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
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
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score 13.070432

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