Long-Range Paternal Gene Flow in the Southern Elephant Seal

Fabiani, Anna; Hoelzel, A. Rus; Galimberti, Filippo; Muelbert, Mônica M. C.

doi:10.1126/science.299.5607.676

Cited by 52 publications

(63 citation statements)

References 8 publications

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“…According to Wynen et al (2000) and Fabiani et al (2003), exact matches of sequences from individuals to exclusive haplotypes from the breeding colonies suggested that the particular colony could be the source population.…”

Section: Methodsmentioning

confidence: 99%

“…However, satellite telemetry is very expensive and can only be applied to few individuals at a time and tagging/branding requires an enormous effort to mark a representative part of each population of a particular species, and the chances of recapturing or sighting these tagged individuals outside of the breeding colonies is low. An alternative means of addressing the issues surrounding the putative origin of individuals is provided through the use of molecular markers (Paetkau et al 1995;Fabiani et al 2003).…”

Section: Introductionmentioning

confidence: 99%

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Multiple origins of vagrant Subantarctic fur seals: a long journey to the Brazilian coast detected by molecular markers

et al. 2007

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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 materialThe online version of this article

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multiple origins of vagrant Subantarctic fur seals: a long journey to the Brazilian coast detected by molecular markers

et al. 2007

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“…While we could not observe copulation, even mating with a small number of females would represent a substantial genetic contribution to the elephant seal population at Gough Island and thus potentially instigate a strong Reisinger and Bester -Long distance breeding dispersal of a southern elephant seal 5 homogenising effect on the Gough Island population (see Fabiani et al 2003). The persistence of the tiny Gough Island population -a sink population in a metapopulation framework (Clobert et al 2001) -may well depend on such dispersal events.…”

mentioning

confidence: 90%

“…However, rarely, individuals may move between provinces. Fabiani et al (2003), for example, provided evidence for male-mediated genetic dispersal over a range of about 8,000 km, from Macquarie Island to the Falkland Islands.…”

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confidence: 99%

Long distance breeding dispersal of a southern elephant seal

Reisinger

Bester

2010

Polar Biol

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Southern elephant seals range extensively during regular foraging excursions. Despite this they are highly philopatric and long range dispersal is rare. At Gough Island, southern Atlantic Ocean, we observed a breeding adult male elephant seal during September 2009 which had been tagged on its natal beach at Marion Island, southern Indian Ocean, in November 1998. The individual was resighted only once on Marion Island -six months after tagging. This 3,860 km movement represents dispersal (and likely gene flow) between distinct populations from different elephant seal geographical provinces. Given the polygynous breeding system of this species, the presence of this single male may have a disproportionate genetic effect on the small number of southern elephant seals breeding at Gough Island.

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“…Numerous investigations [17][18][19][20][21] of pinnipedia in that respect were associated with depth and duration of diving, as well as with the changes occurring in different organ systems during diving. Some authors [22][23][24][25][26][27] chose to investigate the behavior, growth and development of different species of sea lions. Genetic variability was also investigated in some pinnipedia [26,[28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Creation Nerves of the Lumbar and Sacral Plexus in California Sea Lions (Zalophus Californianus) and Northern Elephant Seals (Mirounga Angustirostris)/Formiranje Nerava Iz Lumbalnog I Sakralnog Pleksusa Kod Kalifornijskog Morskog Lava (Zalophus Californianus) I Severnomorskog Slona (Mirounga Angustirostris)

Mihelić¹,

Smodlaka

Tkalčić

et al. 2014

Acta Veterinaria

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The lumbosacral plexus was investigated in the California sea lion and Northern elephant seal. In 9 California sea lions and 2 Northern elephant seals the femoral nerve rises from the ventral branches of the 3 rd and 4 th lumbar nerves, whilst in one male and two specimens of the Northern elephant seal the 5 th lumbar nerve was also involved. Ventral branches of the 3 rd and 4 th lumbar nerves comprised the obturatorius nerve in 7 specimens; in 3 specimens the 5 th lumbar nerve additionally supplements the obturatorius nerve. In Northern elephant seals the obturatorius nerve originates from the ventral branches of the 3 rd , 4 th and 5 th lumbar nerves. The ischiadic nerve originates from the ventral branches of the 4 th , 5 th lumbar and 1 st sacral nerves in 8 specimens California sea lions and in 2 North elephant seals. In 2 specimens of both species the 2 nd sacral nerve also participates. The gluteal nerve created ventral branches of the 5 th lumbar and 1 st sacral nerves in three specimens; however in one specimen the 4 th and 5 th lumbar nerves gave rise to the same nerve in the Northern elephant seal. In California sea lions the gluteal nerve originates from the ventral branches of the 5 th lumbar nerve in seven specimens, nonetheless in 3 specimens the 4 th lumbar nerve also participates in its formation.

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Long-Range Paternal Gene Flow in the Southern Elephant Seal

Cited by 52 publications

References 8 publications

Multiple origins of vagrant Subantarctic fur seals: a long journey to the Brazilian coast detected by molecular markers

Multiple origins of vagrant Subantarctic fur seals: a long journey to the Brazilian coast detected by molecular markers

Long distance breeding dispersal of a southern elephant seal

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