Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean
International audience Southern elephant seals Mirounga leonina within the Kerguelen province disperse between Marion Island (MI), Iles Crozet (IC) and Iles Kerguelen (IK) despite the high site fidelity characteristic of this species. From 1987-2002, 199 IC individuals, or 11.63% of the tagged popul...
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fttriple:oai:gotriple.eu:10670/1.53t0eq 2023-05-15T14:14:50+02:00 Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean Oosthuizen, W. Chris Bester, Marthan N. Tosh, Cheryl A. Guinet, Christophe Besson, Dominique De Bruyn, P.J. Nico Department of Zoology and Entomology Pretoria University of Pretoria South Africa Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2011-07-20 https://doi.org/10.1017/S0954102011000447 https://hal.archives-ouvertes.fr/hal-00649921 en eng HAL CCSD Cambridge University Press (CUP) hal-00649921 doi:10.1017/S0954102011000447 10670/1.53t0eq https://hal.archives-ouvertes.fr/hal-00649921 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0954-1020 EISSN: 1365-2079 Antarctic Science Antarctic Science, Cambridge University Press (CUP), 2011, 23 (6), pp.567-577. ⟨10.1017/S0954102011000447⟩ gene flow Iles Crozet Iles Kerguelen mark-resighting metapopulation migration Mirounga leonina Marion Island envir scipo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.1017/S0954102011000447 2023-01-22T16:58:36Z International audience Southern elephant seals Mirounga leonina within the Kerguelen province disperse between Marion Island (MI), Iles Crozet (IC) and Iles Kerguelen (IK) despite the high site fidelity characteristic of this species. From 1987-2002, 199 IC individuals, or 11.63% of the tagged population there, were resighted at MI. Resights of IC seals at MI peaked during the juvenile moult and seals aged 0-2 represent 66% of all resights made. Equal numbers of male and female seals (all age classes) were dispersing. Dispersing breeding females (n522, on 33 occasions) outnumbered dispersing breeding males (n56, on 16 occasions), after initially emigrating from IC to MI as juvenile seals (natal dispersal). Greater male-mediated gene flow was ultimately attained due to the polygynous mating system and some extremely successful males. Of 132 seals fitted with satellite-relay data loggers at MI, six hauled out at IC and three at IK. Two of the seals which migrated to IC were born at MI; all others were unmarked males likely to be native to IC or IK. Dispersal should ideally be considered when assessing vital rates for southern Indian Ocean elephant seal populations. Article in Journal/Newspaper Antarctic Science Elephant Seal Elephant Seals Marion Island Mirounga leonina Southern Elephant Seals Southern Ocean Unknown Indian Kerguelen Southern Ocean Antarctic Science 23 6 589 596 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
gene flow Iles Crozet Iles Kerguelen mark-resighting metapopulation migration Mirounga leonina Marion Island envir scipo |
spellingShingle |
gene flow Iles Crozet Iles Kerguelen mark-resighting metapopulation migration Mirounga leonina Marion Island envir scipo Oosthuizen, W. Chris Bester, Marthan N. Tosh, Cheryl A. Guinet, Christophe Besson, Dominique De Bruyn, P.J. Nico Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean |
topic_facet |
gene flow Iles Crozet Iles Kerguelen mark-resighting metapopulation migration Mirounga leonina Marion Island envir scipo |
description |
International audience Southern elephant seals Mirounga leonina within the Kerguelen province disperse between Marion Island (MI), Iles Crozet (IC) and Iles Kerguelen (IK) despite the high site fidelity characteristic of this species. From 1987-2002, 199 IC individuals, or 11.63% of the tagged population there, were resighted at MI. Resights of IC seals at MI peaked during the juvenile moult and seals aged 0-2 represent 66% of all resights made. Equal numbers of male and female seals (all age classes) were dispersing. Dispersing breeding females (n522, on 33 occasions) outnumbered dispersing breeding males (n56, on 16 occasions), after initially emigrating from IC to MI as juvenile seals (natal dispersal). Greater male-mediated gene flow was ultimately attained due to the polygynous mating system and some extremely successful males. Of 132 seals fitted with satellite-relay data loggers at MI, six hauled out at IC and three at IK. Two of the seals which migrated to IC were born at MI; all others were unmarked males likely to be native to IC or IK. Dispersal should ideally be considered when assessing vital rates for southern Indian Ocean elephant seal populations. |
author2 |
Department of Zoology and Entomology Pretoria University of Pretoria South Africa Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Oosthuizen, W. Chris Bester, Marthan N. Tosh, Cheryl A. Guinet, Christophe Besson, Dominique De Bruyn, P.J. Nico |
author_facet |
Oosthuizen, W. Chris Bester, Marthan N. Tosh, Cheryl A. Guinet, Christophe Besson, Dominique De Bruyn, P.J. Nico |
author_sort |
Oosthuizen, W. Chris |
title |
Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean |
title_short |
Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean |
title_full |
Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean |
title_fullStr |
Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean |
title_full_unstemmed |
Dispersal and dispersion of southern elephant seals in the Kerguelen province, Southern Ocean |
title_sort |
dispersal and dispersion of southern elephant seals in the kerguelen province, southern ocean |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://doi.org/10.1017/S0954102011000447 https://hal.archives-ouvertes.fr/hal-00649921 |
geographic |
Indian Kerguelen Southern Ocean |
geographic_facet |
Indian Kerguelen Southern Ocean |
genre |
Antarctic Science Elephant Seal Elephant Seals Marion Island Mirounga leonina Southern Elephant Seals Southern Ocean |
genre_facet |
Antarctic Science Elephant Seal Elephant Seals Marion Island Mirounga leonina Southern Elephant Seals Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0954-1020 EISSN: 1365-2079 Antarctic Science Antarctic Science, Cambridge University Press (CUP), 2011, 23 (6), pp.567-577. ⟨10.1017/S0954102011000447⟩ |
op_relation |
hal-00649921 doi:10.1017/S0954102011000447 10670/1.53t0eq https://hal.archives-ouvertes.fr/hal-00649921 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1017/S0954102011000447 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
6 |
container_start_page |
589 |
op_container_end_page |
596 |
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1766287205989351424 |