Artículos de revistas
Multiple origins of vagrant Subantarctic fur seals: A long journey to the Brazilian coast detected by molecular markers
Fecha
2008Registro en:
POLAR BIOLOGY, v.31, n.3, p.303-308, 2008
0722-4060
10.1007/s00300-007-0358-z
Autor
FERREIRA, Juliana Machado
OLIVEIRA, Larissa Rosa De
WYNEN, Louise
BESTER, Marthan N.
GUINET, Christophe
MORAES-BARROS, Nadia
MARTINS, Felipe Mello
MUELBERT, Monica M. C.
MORENO, Ignacio B.
SICILIANO, Salvatore
OTT, Paulo Henrique
MORGANTE, Joao Stenghel
Institución
Resumen
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.