Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events

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Possible effects of "El Niño" Southern Oscillation (ENSO) components "El Niño" and "La Niña" on populations of southern elephant seals, Mirounga leonina L., are considered in this study. Information on pup weaning mass, collected at King George Island, South Shetland Is...

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Autores principales: Vergani, D.F., Stanganelli, Z.B., Bilenca, D.
Formato: JOUR
Materias:
El Niño
ENSO
La Niña
Mirounga leonina
Southern elephant seals
Weaning mass
body mass
El Nino
La Nina
pinniped
weaning
Antarctica
elephant
Mammalia
Phocidae
Pinnipedia
Vertebrata
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09541020_v13_n1_p37_Vergani
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09541020_v13_n1_p37_Vergani
record_format dspace
spelling todo:paper_09541020_v13_n1_p37_Vergani2023-10-03T15:51:35Z Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events Vergani, D.F. Stanganelli, Z.B. Bilenca, D. El Niño ENSO La Niña Mirounga leonina Southern elephant seals Weaning mass body mass El Nino La Nina pinniped weaning Antarctica elephant Mammalia Mirounga leonina Phocidae Pinnipedia Vertebrata Possible effects of "El Niño" Southern Oscillation (ENSO) components "El Niño" and "La Niña" on populations of southern elephant seals, Mirounga leonina L., are considered in this study. Information on pup weaning mass, collected at King George Island, South Shetland Islands, over a ten-year period (1985-94) was analysed with respect to the occurrence of ENSO and recent research in feeding ecology of this population in the Bellinghausen Sea. Weaning mass of elephant seals was found to be higher during "La Niña" and a lower during "El Niño". Differences in weaning mass between sexes varied in different proportions during El Niño and La Niña. The teleconnection between tropical Pacific anomalies and the Bellinghausen Sea deserves further research, and our results suggest a way to study this phenomenon using data of elephant seal pups weaning mass as indicators of changes in food availability. Fil:Bilenca, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09541020_v13_n1_p37_Vergani
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic El Niño
ENSO
La Niña
Mirounga leonina
Southern elephant seals
Weaning mass
body mass
El Nino
La Nina
pinniped
weaning
Antarctica
elephant
Mammalia
Mirounga leonina
Phocidae
Pinnipedia
Vertebrata
spellingShingle El Niño
ENSO
La Niña
Mirounga leonina
Southern elephant seals
Weaning mass
body mass
El Nino
La Nina
pinniped
weaning
Antarctica
elephant
Mammalia
Mirounga leonina
Phocidae
Pinnipedia
Vertebrata
Vergani, D.F.
Stanganelli, Z.B.
Bilenca, D.
Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events
topic_facet El Niño
ENSO
La Niña
Mirounga leonina
Southern elephant seals
Weaning mass
body mass
El Nino
La Nina
pinniped
weaning
Antarctica
elephant
Mammalia
Mirounga leonina
Phocidae
Pinnipedia
Vertebrata
description Possible effects of "El Niño" Southern Oscillation (ENSO) components "El Niño" and "La Niña" on populations of southern elephant seals, Mirounga leonina L., are considered in this study. Information on pup weaning mass, collected at King George Island, South Shetland Islands, over a ten-year period (1985-94) was analysed with respect to the occurrence of ENSO and recent research in feeding ecology of this population in the Bellinghausen Sea. Weaning mass of elephant seals was found to be higher during "La Niña" and a lower during "El Niño". Differences in weaning mass between sexes varied in different proportions during El Niño and La Niña. The teleconnection between tropical Pacific anomalies and the Bellinghausen Sea deserves further research, and our results suggest a way to study this phenomenon using data of elephant seal pups weaning mass as indicators of changes in food availability.
format JOUR
author Vergani, D.F.
Stanganelli, Z.B.
Bilenca, D.
author_facet Vergani, D.F.
Stanganelli, Z.B.
Bilenca, D.
author_sort Vergani, D.F.
title Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events
title_short Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events
title_full Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events
title_fullStr Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events
title_full_unstemmed Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events
title_sort weaning mass variation of southern elephant seals at king george island and its possible relationship with "el niño" and "la niña" events
url http://hdl.handle.net/20.500.12110/paper_09541020_v13_n1_p37_Vergani
work_keys_str_mv AT verganidf weaningmassvariationofsouthernelephantsealsatkinggeorgeislandanditspossiblerelationshipwithelninoandlaninaevents
AT stanganellizb weaningmassvariationofsouthernelephantsealsatkinggeorgeislandanditspossiblerelationshipwithelninoandlaninaevents
AT bilencad weaningmassvariationofsouthernelephantsealsatkinggeorgeislandanditspossiblerelationshipwithelninoandlaninaevents
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