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Multiple origins of vagrant Subantarctic fur seals: a long journey to the Brazilian coast detected by molecular markers |
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| Authors: | Juliana Machado Ferreira Larissa Rosa de Oliveira Louise Wynen Marthán N. Bester Christophe Guinet Nadia Moraes-Barros Felipe Mello Martins Mônica M. C. Muelbert Ignacio B. Moreno Salvatore Siciliano Paulo Henrique Ott João Stenghel Morgante |
| Affiliation: | 1. Laboratório de Biologia Evolutiva e Conserva??o de Vertebrados (LABEC), Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de S?o Paulo (USP), Rua do Mat?o, 277, Cidade Universitária, Butant?, 05508-900, S?o Paulo, SP, Brazil 2. Grupo de Estudos de Mamíferos Aquáticos do Rio Grande Sul (GEMARS), Rua Felipe Neri 382/203, 90440-150, Porto Alegre, RS, Brazil 3. Centro de Estudos Costeiros, Limnológicos e Marinhos da Universidade Federal do Rio Grande do Sul (CECLIMAR-UFRGS), Av. Tramandaí 976, 95625-000, Imbe, RS, Brazil 4. Bioscience North Australia, Charles Darwin University, Darwin, NT, 0909, Australia 5. Department of Zoology and Entomology, University of Pretoria, Dierkunde Building, R2-26, Pretoria, 0002, South Africa 6. Centre d’etudes biologiques de Chizé CEBC-CNRS UPR 1934, Villiers-en-Bois, 79360, Beauvoir Sur Niort, France 7. Universidade Federal do Rio Grande, P.O. Box 379, 96200-970, Rio Grande, RS, Brazil 8. Grupo de Estudos de Mamíferos Marinhos da Regi?o dos Lagos (GEMM-Lagos)/ENSP/FIOCRUZ, Rua Leopoldo Bulh?es, 1480 – Manguinhos, 21041-210, Rio de Janeiro, RJ, Brazil 9. Universidade do Estado do Rio Grande do Sul (UERGS), Rua Aparício Brandino de Oliveira, 1115, 95595-000, Cidreira, RS, Brazil |
| Abstract: | In this study, we present the first data about putative source populations of the vagrant Subantarctic fur seal, Arctocephalus tropicalis, found on the Brazilian coast, through the comparison of their mitochondrial DNA control sequences to exclusive haplotypes from the main breeding colonies of the species. The results indicated that, despite the majority of the vagrant individuals are from Gough Island (the closest breeding site to the Brazilian coast), they also come from other reproductive colonies, such as Crozet Island, a distance around 16,500 km from the Brazilian coast. Furthermore, the molecular data identified three possible management units: (1) Gough, (2) Amsterdam, and (3) Marion, Macquarie and Crozet. This significant genetic subdivision must be taken into account in any future management plan for the species conservation, including rehabilitation and even reintroduction of vagrant fur seals. Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
| Keywords: | Vagrants Arctocephalus tropicalis Brazilian coast mtDNA |
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