Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets
The at-sea behaviour of marine top predators provides valuable insights into the distribution of prey species and strategies used by predators to exploit patchily distributed resources. We describe the water column usage and dive strategies of female southern elephant seals from Marion Island tracke...
Main Authors: | , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2011
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.800271 https://doi.org/10.1594/PANGAEA.800271 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.800271 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.800271 2023-05-15T16:05:36+02:00 Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets McIntyre, Trevor Bornemann, Horst Plötz, Joachim Tosh, Cheryl Ann Bester, Marthán Nieuwoudt MEDIAN LATITUDE: -50.278087 * MEDIAN LONGITUDE: 24.078216 * SOUTH-BOUND LATITUDE: -68.879000 * WEST-BOUND LONGITUDE: -18.472000 * NORTH-BOUND LATITUDE: -35.401000 * EAST-BOUND LONGITUDE: 49.948000 * DATE/TIME START: 2004-04-17T15:34:00 * DATE/TIME END: 2009-01-22T04:49:00 2011-11-08 59 datasets https://doi.pangaea.de/10.1594/PANGAEA.800271 https://doi.org/10.1594/PANGAEA.800271 en eng PANGAEA McIntyre, Trevor; Bornemann, Horst; Plötz, Joachim; Tosh, Cheryl Ann; Bester, Marthán Nieuwoudt (2011): Water column use and forage strategies of female southern elephant seals from Marion Island. Marine Biology, 158(9), 2125-2139, https://doi.org/10.1007/s00227-011-1719-2 https://doi.pangaea.de/10.1594/PANGAEA.800271 https://doi.org/10.1594/PANGAEA.800271 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY University of Pretoria, Department of Zoology & Entomology MAR2004 MAR2004_sel_a_f_10 MAR2005 MAR2005_sel_a_f_06 MAR2006 MAR2006_sel_s_f_01 MAR2006_sel_s_f_02 MAR2007 MAR2007_sel_a_f_02 MAR2007_sel_a_f_03 MAR2007_sel_a_f_04 MAR2007_sel_a_f_06 MAR2007_sel_a_f_16 MAR2007_sel_a_f_17 MAR2007_sel_a_f_18 MAR2007_sel_a_f_19 MAR2007_sel_a_f_20 MAR2007_sel_a_f_21 MAR2007_sel_a_f_22 MAR2008 MAR2008_sel_a_f_07 MAR2008_sel_a_f_08 MAR2008_sel_a_f_09 MAR2008_sel_a_f_10 MAR2008_sel_a_f_11 MAR2008_sel_a_f_12 MAR2008_sel_a_f_13 MAR2008_sel_a_f_14 MAR2008_sel_a_f_15 MAR2008_sel_a_f_16 MAR2008_sel_a_f_17 MAR2008_sel_a_f_18 MAR2008_sel_a_f_21 MAR2008_sel_a_f_22 MAR2008_sel_a_f_23 Marine endotherm Marine Mammal Tracking Marion Island Research Station MET MMT Southern Ocean - Indian sector Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.800271 https://doi.org/10.1007/s00227-011-1719-2 2023-01-20T08:58:54Z The at-sea behaviour of marine top predators provides valuable insights into the distribution of prey species and strategies used by predators to exploit patchily distributed resources. We describe the water column usage and dive strategies of female southern elephant seals from Marion Island tracked between 2004 and 2008. Dives representing increases in forage effort were identified using a method that combines dive type analyses and the calculation of relative amounts of time that animals spend in the bottom phases of dives. Results from this analysis indicate that female elephant seals from Marion Island tend to display lower levels of forage effort closer to the island and display intensive opportunistic forage bouts that occur at a minimum distance of approximately 215 km from the island. Females from Marion Island dived deeper and for longer periods of time, compared to females from other populations. Most animals displayed positive diel vertical migration, evidently foraging pelagically on vertically migrating prey. A few animals displayed periods of reverse (negative) diel vertical migration, however, diving to deeper depths at night, compared to daytime. This behaviour is difficult to explain and prey species targeted during such periods unknown. Our results illustrate plasticity in foraging behaviour of southern elephant seals, as well as inter-population differences in forage strategies. Dataset Elephant Seals Marion Island Southern Elephant Seals Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Southern Ocean Indian ENVELOPE(-18.472000,49.948000,-35.401000,-68.879000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
MAR2004 MAR2004_sel_a_f_10 MAR2005 MAR2005_sel_a_f_06 MAR2006 MAR2006_sel_s_f_01 MAR2006_sel_s_f_02 MAR2007 MAR2007_sel_a_f_02 MAR2007_sel_a_f_03 MAR2007_sel_a_f_04 MAR2007_sel_a_f_06 MAR2007_sel_a_f_16 MAR2007_sel_a_f_17 MAR2007_sel_a_f_18 MAR2007_sel_a_f_19 MAR2007_sel_a_f_20 MAR2007_sel_a_f_21 MAR2007_sel_a_f_22 MAR2008 MAR2008_sel_a_f_07 MAR2008_sel_a_f_08 MAR2008_sel_a_f_09 MAR2008_sel_a_f_10 MAR2008_sel_a_f_11 MAR2008_sel_a_f_12 MAR2008_sel_a_f_13 MAR2008_sel_a_f_14 MAR2008_sel_a_f_15 MAR2008_sel_a_f_16 MAR2008_sel_a_f_17 MAR2008_sel_a_f_18 MAR2008_sel_a_f_21 MAR2008_sel_a_f_22 MAR2008_sel_a_f_23 Marine endotherm Marine Mammal Tracking Marion Island Research Station MET MMT Southern Ocean - Indian sector |
spellingShingle |
MAR2004 MAR2004_sel_a_f_10 MAR2005 MAR2005_sel_a_f_06 MAR2006 MAR2006_sel_s_f_01 MAR2006_sel_s_f_02 MAR2007 MAR2007_sel_a_f_02 MAR2007_sel_a_f_03 MAR2007_sel_a_f_04 MAR2007_sel_a_f_06 MAR2007_sel_a_f_16 MAR2007_sel_a_f_17 MAR2007_sel_a_f_18 MAR2007_sel_a_f_19 MAR2007_sel_a_f_20 MAR2007_sel_a_f_21 MAR2007_sel_a_f_22 MAR2008 MAR2008_sel_a_f_07 MAR2008_sel_a_f_08 MAR2008_sel_a_f_09 MAR2008_sel_a_f_10 MAR2008_sel_a_f_11 MAR2008_sel_a_f_12 MAR2008_sel_a_f_13 MAR2008_sel_a_f_14 MAR2008_sel_a_f_15 MAR2008_sel_a_f_16 MAR2008_sel_a_f_17 MAR2008_sel_a_f_18 MAR2008_sel_a_f_21 MAR2008_sel_a_f_22 MAR2008_sel_a_f_23 Marine endotherm Marine Mammal Tracking Marion Island Research Station MET MMT Southern Ocean - Indian sector McIntyre, Trevor Bornemann, Horst Plötz, Joachim Tosh, Cheryl Ann Bester, Marthán Nieuwoudt Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets |
topic_facet |
MAR2004 MAR2004_sel_a_f_10 MAR2005 MAR2005_sel_a_f_06 MAR2006 MAR2006_sel_s_f_01 MAR2006_sel_s_f_02 MAR2007 MAR2007_sel_a_f_02 MAR2007_sel_a_f_03 MAR2007_sel_a_f_04 MAR2007_sel_a_f_06 MAR2007_sel_a_f_16 MAR2007_sel_a_f_17 MAR2007_sel_a_f_18 MAR2007_sel_a_f_19 MAR2007_sel_a_f_20 MAR2007_sel_a_f_21 MAR2007_sel_a_f_22 MAR2008 MAR2008_sel_a_f_07 MAR2008_sel_a_f_08 MAR2008_sel_a_f_09 MAR2008_sel_a_f_10 MAR2008_sel_a_f_11 MAR2008_sel_a_f_12 MAR2008_sel_a_f_13 MAR2008_sel_a_f_14 MAR2008_sel_a_f_15 MAR2008_sel_a_f_16 MAR2008_sel_a_f_17 MAR2008_sel_a_f_18 MAR2008_sel_a_f_21 MAR2008_sel_a_f_22 MAR2008_sel_a_f_23 Marine endotherm Marine Mammal Tracking Marion Island Research Station MET MMT Southern Ocean - Indian sector |
description |
The at-sea behaviour of marine top predators provides valuable insights into the distribution of prey species and strategies used by predators to exploit patchily distributed resources. We describe the water column usage and dive strategies of female southern elephant seals from Marion Island tracked between 2004 and 2008. Dives representing increases in forage effort were identified using a method that combines dive type analyses and the calculation of relative amounts of time that animals spend in the bottom phases of dives. Results from this analysis indicate that female elephant seals from Marion Island tend to display lower levels of forage effort closer to the island and display intensive opportunistic forage bouts that occur at a minimum distance of approximately 215 km from the island. Females from Marion Island dived deeper and for longer periods of time, compared to females from other populations. Most animals displayed positive diel vertical migration, evidently foraging pelagically on vertically migrating prey. A few animals displayed periods of reverse (negative) diel vertical migration, however, diving to deeper depths at night, compared to daytime. This behaviour is difficult to explain and prey species targeted during such periods unknown. Our results illustrate plasticity in foraging behaviour of southern elephant seals, as well as inter-population differences in forage strategies. |
format |
Dataset |
author |
McIntyre, Trevor Bornemann, Horst Plötz, Joachim Tosh, Cheryl Ann Bester, Marthán Nieuwoudt |
author_facet |
McIntyre, Trevor Bornemann, Horst Plötz, Joachim Tosh, Cheryl Ann Bester, Marthán Nieuwoudt |
author_sort |
McIntyre, Trevor |
title |
Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets |
title_short |
Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets |
title_full |
Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets |
title_fullStr |
Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets |
title_full_unstemmed |
Dive depth and dive duration data of female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets |
title_sort |
dive depth and dive duration data of female southern elephant seals from marion island between 2004 and 2008 with links to datasets |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.800271 https://doi.org/10.1594/PANGAEA.800271 |
op_coverage |
MEDIAN LATITUDE: -50.278087 * MEDIAN LONGITUDE: 24.078216 * SOUTH-BOUND LATITUDE: -68.879000 * WEST-BOUND LONGITUDE: -18.472000 * NORTH-BOUND LATITUDE: -35.401000 * EAST-BOUND LONGITUDE: 49.948000 * DATE/TIME START: 2004-04-17T15:34:00 * DATE/TIME END: 2009-01-22T04:49:00 |
long_lat |
ENVELOPE(-18.472000,49.948000,-35.401000,-68.879000) |
geographic |
Southern Ocean Indian |
geographic_facet |
Southern Ocean Indian |
genre |
Elephant Seals Marion Island Southern Elephant Seals Southern Ocean |
genre_facet |
Elephant Seals Marion Island Southern Elephant Seals Southern Ocean |
op_source |
University of Pretoria, Department of Zoology & Entomology |
op_relation |
McIntyre, Trevor; Bornemann, Horst; Plötz, Joachim; Tosh, Cheryl Ann; Bester, Marthán Nieuwoudt (2011): Water column use and forage strategies of female southern elephant seals from Marion Island. Marine Biology, 158(9), 2125-2139, https://doi.org/10.1007/s00227-011-1719-2 https://doi.pangaea.de/10.1594/PANGAEA.800271 https://doi.org/10.1594/PANGAEA.800271 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.800271 https://doi.org/10.1007/s00227-011-1719-2 |
_version_ |
1766401494035202048 |