Title Long distance breeding dispersal of a southern elephant seal
Author Reisinger, R.R.; Bester, M.N.
Author Affil Reisinger, R.R., University of Pretoria, Department of Zoology and Entomology, Pretoria, South Africa
Source Polar Biology, 33(9), p.1289-1291. Publisher: Springer-Verlag, Berlin, Germany. ISSN: 0722-4060
Publication Date Sept. 2010
Notes In English. 30 refs. GeoRef Acc. No: 309102
Index Terms Atlantic Ocean Islands--Gough Island; Indian Ocean Islands--Marion Island; Southern Ocean; Atlantic Ocean Islands; biogeography; Carnivora; Chordata; ecology; Eutheria; Gough Island; Indian Ocean Islands; Mammalia; Marion Island; Pinnipedia; Prince Edward Island Group; reproduction; subantarctic regions; Tetrapoda; Theria; Tristan da Cunha; Vertebrata
Abstract 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, 6 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.
URL http://hdl.handle.net/10.1007/s00300-010-0830-z
Publication Type journal article
Record ID 91206