Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters

Autores
Crespo, Enrique Alberto; Schiavini, Adrian Carlos Miguel; Garcia, Nestor Anibal; Franco Trecu, Valentina; Prosser Goodall, Rae Natalie; Rodriguez, Diego Horacio; Stenghel Morgante, João; Rosa de Oliveira, Larissa
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The South American fur seal (SAFS), Arctocephalus australis, was severely depleted during the 18th century. This work updates information on distribution, abundance, seasonal movements, and genetic structure along the southwestern South Atlantic. Its distribution in Argentine waters includes nineteen rookeries on the Patagonian coast, Isla de los Estados, and islets of the Beagle Channel. Censuses were carried out in rookeries from Isla Escondida to Isla de los Estados from 1996 to 2014. The largest concentrations are found in Chubut, (4,500–15,500 seals) and Isla de los Estados (4,500). Pups were recorded on Isla Escondida, Rasa, and Isla de los Estados. An increasing number of SAFS were recorded in northern Patagonia, including seals marked in Uruguay. Skin samples were taken from southern Brazil to Tierra del Fuego in order to evaluate population structure and demographic trends. Genetic results indicated no population subdivisions (Φst = −0.0292, Fst = −0.00716, P > 0.05). Bayesian skyline plots constructed for the entire data set indicated evidence of rapid population expansion discernible in Nef between the last 20,000 and 17,000 yr. Genetics results and observation data from marked fur seals support the hypothesis of ancient gene flow and a single Atlantic population. Therefore, SAFS should be managed under international and integrated conservation policies.
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia; Argentina
Fil: Schiavini, Adrian Carlos Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Garcia, Nestor Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Franco Trecu, Valentina. Proyecto Pinnípedo; Uruguay
Fil: Prosser Goodall, Rae Natalie. Museo Acatushún de Aves y Mamíferos; Argentina
Fil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Stenghel Morgante, João. Universidade de Sao Paulo; Brasil
Fil: Rosa de Oliveira, Larissa. Universidade do Vale do Rio dos Sinos; Brasil. Grupo de Estudos de Mamíferos Aquáticos do Rio Grande do Sul; Brasil
Materia
Arctocephalus Australis
Distribution
Abundance
Population Trend
Genetic Structure
Seasonal Movements
Southwestern South Atlantic
South American Fur Seal
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:11336/42444
Acceder
id CONICETDig_5b08842079a615dc39ed1e44441acd1f
oai_identifier_str oai:ri.conicet.gov.ar:11336/42444
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic watersCrespo, Enrique AlbertoSchiavini, Adrian Carlos MiguelGarcia, Nestor AnibalFranco Trecu, ValentinaProsser Goodall, Rae NatalieRodriguez, Diego HoracioStenghel Morgante, JoãoRosa de Oliveira, LarissaArctocephalus AustralisDistributionAbundancePopulation TrendGenetic StructureSeasonal MovementsSouthwestern South AtlanticSouth American Fur Sealhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The South American fur seal (SAFS), Arctocephalus australis, was severely depleted during the 18th century. This work updates information on distribution, abundance, seasonal movements, and genetic structure along the southwestern South Atlantic. Its distribution in Argentine waters includes nineteen rookeries on the Patagonian coast, Isla de los Estados, and islets of the Beagle Channel. Censuses were carried out in rookeries from Isla Escondida to Isla de los Estados from 1996 to 2014. The largest concentrations are found in Chubut, (4,500–15,500 seals) and Isla de los Estados (4,500). Pups were recorded on Isla Escondida, Rasa, and Isla de los Estados. An increasing number of SAFS were recorded in northern Patagonia, including seals marked in Uruguay. Skin samples were taken from southern Brazil to Tierra del Fuego in order to evaluate population structure and demographic trends. Genetic results indicated no population subdivisions (Φst = −0.0292, Fst = −0.00716, P > 0.05). Bayesian skyline plots constructed for the entire data set indicated evidence of rapid population expansion discernible in Nef between the last 20,000 and 17,000 yr. Genetics results and observation data from marked fur seals support the hypothesis of ancient gene flow and a single Atlantic population. Therefore, SAFS should be managed under international and integrated conservation policies.Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia; ArgentinaFil: Schiavini, Adrian Carlos Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Garcia, Nestor Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; ArgentinaFil: Franco Trecu, Valentina. Proyecto Pinnípedo; UruguayFil: Prosser Goodall, Rae Natalie. Museo Acatushún de Aves y Mamíferos; ArgentinaFil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Stenghel Morgante, João. Universidade de Sao Paulo; BrasilFil: Rosa de Oliveira, Larissa. Universidade do Vale do Rio dos Sinos; Brasil. Grupo de Estudos de Mamíferos Aquáticos do Rio Grande do Sul; BrasilWiley Blackwell Publishing, Inc2015-07info: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/11336/42444Crespo, Enrique Alberto; Schiavini, Adrian Carlos Miguel; Garcia, Nestor Anibal; Franco Trecu, Valentina; Prosser Goodall, Rae Natalie; et al.; Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters; Wiley Blackwell Publishing, Inc; Marine Mammal Science; 31; 3; 7-2015; 866-8900824-0469CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/mms.12199info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/mms.12199info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:59Zoai:ri.conicet.gov.ar:11336/42444instacron: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 10:07:59.352CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
title Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
spellingShingle Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
Crespo, Enrique Alberto
Arctocephalus Australis
Distribution
Abundance
Population Trend
Genetic Structure
Seasonal Movements
Southwestern South Atlantic
South American Fur Seal
title_short Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
title_full Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
title_fullStr Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
title_full_unstemmed Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
title_sort Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters
dc.creator.none.fl_str_mv Crespo, Enrique Alberto
Schiavini, Adrian Carlos Miguel
Garcia, Nestor Anibal
Franco Trecu, Valentina
Prosser Goodall, Rae Natalie
Rodriguez, Diego Horacio
Stenghel Morgante, João
Rosa de Oliveira, Larissa
author Crespo, Enrique Alberto
author_facet Crespo, Enrique Alberto
Schiavini, Adrian Carlos Miguel
Garcia, Nestor Anibal
Franco Trecu, Valentina
Prosser Goodall, Rae Natalie
Rodriguez, Diego Horacio
Stenghel Morgante, João
Rosa de Oliveira, Larissa
author_role author
author2 Schiavini, Adrian Carlos Miguel
Garcia, Nestor Anibal
Franco Trecu, Valentina
Prosser Goodall, Rae Natalie
Rodriguez, Diego Horacio
Stenghel Morgante, João
Rosa de Oliveira, Larissa
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Arctocephalus Australis
Distribution
Abundance
Population Trend
Genetic Structure
Seasonal Movements
Southwestern South Atlantic
South American Fur Seal
topic Arctocephalus Australis
Distribution
Abundance
Population Trend
Genetic Structure
Seasonal Movements
Southwestern South Atlantic
South American Fur Seal
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The South American fur seal (SAFS), Arctocephalus australis, was severely depleted during the 18th century. This work updates information on distribution, abundance, seasonal movements, and genetic structure along the southwestern South Atlantic. Its distribution in Argentine waters includes nineteen rookeries on the Patagonian coast, Isla de los Estados, and islets of the Beagle Channel. Censuses were carried out in rookeries from Isla Escondida to Isla de los Estados from 1996 to 2014. The largest concentrations are found in Chubut, (4,500–15,500 seals) and Isla de los Estados (4,500). Pups were recorded on Isla Escondida, Rasa, and Isla de los Estados. An increasing number of SAFS were recorded in northern Patagonia, including seals marked in Uruguay. Skin samples were taken from southern Brazil to Tierra del Fuego in order to evaluate population structure and demographic trends. Genetic results indicated no population subdivisions (Φst = −0.0292, Fst = −0.00716, P > 0.05). Bayesian skyline plots constructed for the entire data set indicated evidence of rapid population expansion discernible in Nef between the last 20,000 and 17,000 yr. Genetics results and observation data from marked fur seals support the hypothesis of ancient gene flow and a single Atlantic population. Therefore, SAFS should be managed under international and integrated conservation policies.
Fil: Crespo, Enrique Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina. Universidad Nacional de la Patagonia; Argentina
Fil: Schiavini, Adrian Carlos Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Garcia, Nestor Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina
Fil: Franco Trecu, Valentina. Proyecto Pinnípedo; Uruguay
Fil: Prosser Goodall, Rae Natalie. Museo Acatushún de Aves y Mamíferos; Argentina
Fil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
Fil: Stenghel Morgante, João. Universidade de Sao Paulo; Brasil
Fil: Rosa de Oliveira, Larissa. Universidade do Vale do Rio dos Sinos; Brasil. Grupo de Estudos de Mamíferos Aquáticos do Rio Grande do Sul; Brasil
description The South American fur seal (SAFS), Arctocephalus australis, was severely depleted during the 18th century. This work updates information on distribution, abundance, seasonal movements, and genetic structure along the southwestern South Atlantic. Its distribution in Argentine waters includes nineteen rookeries on the Patagonian coast, Isla de los Estados, and islets of the Beagle Channel. Censuses were carried out in rookeries from Isla Escondida to Isla de los Estados from 1996 to 2014. The largest concentrations are found in Chubut, (4,500–15,500 seals) and Isla de los Estados (4,500). Pups were recorded on Isla Escondida, Rasa, and Isla de los Estados. An increasing number of SAFS were recorded in northern Patagonia, including seals marked in Uruguay. Skin samples were taken from southern Brazil to Tierra del Fuego in order to evaluate population structure and demographic trends. Genetic results indicated no population subdivisions (Φst = −0.0292, Fst = −0.00716, P > 0.05). Bayesian skyline plots constructed for the entire data set indicated evidence of rapid population expansion discernible in Nef between the last 20,000 and 17,000 yr. Genetics results and observation data from marked fur seals support the hypothesis of ancient gene flow and a single Atlantic population. Therefore, SAFS should be managed under international and integrated conservation policies.
publishDate 2015
dc.date.none.fl_str_mv 2015-07
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/11336/42444
Crespo, Enrique Alberto; Schiavini, Adrian Carlos Miguel; Garcia, Nestor Anibal; Franco Trecu, Valentina; Prosser Goodall, Rae Natalie; et al.; Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters; Wiley Blackwell Publishing, Inc; Marine Mammal Science; 31; 3; 7-2015; 866-890
0824-0469
CONICET Digital
CONICET
url http://hdl.handle.net/11336/42444
identifier_str_mv Crespo, Enrique Alberto; Schiavini, Adrian Carlos Miguel; Garcia, Nestor Anibal; Franco Trecu, Valentina; Prosser Goodall, Rae Natalie; et al.; Status, population trend and genetic structure of South American fur seals, Arctocephalus australis , in southwestern Atlantic waters; Wiley Blackwell Publishing, Inc; Marine Mammal Science; 31; 3; 7-2015; 866-890
0824-0469
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/mms.12199
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/mms.12199
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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_ 1844613945239797760
score 13.069144

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