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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/42444
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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 Técnicas2025-09-03T09:59:03Zoai: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:34982025-09-03 09:59:04.17CONICET 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 |
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1842269558899998720 |
score |
13.13397 |