Lactation costs in southern elephant seals at King George Island, South Shetland Islands
Labelled-water methodology was used to quantify energy costs and energy transfer efficiency in 18 mother-pup pairs of southern elephant seals (Mirounga leonina) during lactation. During the lactation period, mothers lost a mean mass of 227±47 kg. Mass loss included 22% of the protein, 60% of the fat...
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ftawi:oai:epic.awi.de:10121 2023-09-05T13:19:13+02:00 Lactation costs in southern elephant seals at King George Island, South Shetland Islands Carlini, A. R. Márquez, M. E. I. Panarello, H. Ramdohr, S. Daneri, G. A. Bornemann, Horst Plötz, Joachim 2004 https://epic.awi.de/id/eprint/10121/ https://doi.org/10.1007/s00300-003-0584-y https://hdl.handle.net/10013/epic.20617 unknown Carlini, A. R. , Márquez, M. E. I. , Panarello, H. , Ramdohr, S. , Daneri, G. A. , Bornemann, H. and Plötz, J. (2004) Lactation costs in southern elephant seals at King George Island, South Shetland Islands , Polar Biology, 27 (5), pp. 266-276 . doi:10.1007/s00300-003-0584-y <https://doi.org/10.1007/s00300-003-0584-y> , hdl:10013/epic.20617 EPIC3Polar Biology, 27(5), pp. 266-276, ISBN: 0722-4060 (Paper) 14 Article isiRev 2004 ftawi https://doi.org/10.1007/s00300-003-0584-y 2023-08-22T19:48:30Z Labelled-water methodology was used to quantify energy costs and energy transfer efficiency in 18 mother-pup pairs of southern elephant seals (Mirounga leonina) during lactation. During the lactation period, mothers lost a mean mass of 227±47 kg. Mass loss included 22% of the protein, 60% of the fat, and 51% of the energy in the mothers body upon arrival. Total body-energy reserves at parturition explained 69% of the variation in the total lactation costs and 50% of the variation in the pups body energy at weaning. On average, pups retained 48% of the mass, 49% of protein, 53% of fat and 51% of energy lost by their mothers. Greater, fatter females showed a decrease in the efficiency of energy and fat transfer and, at the same time, an increase in the efficiency of protein transfer. This may be due to an increased use of protein as metabolic fuel, as fat demands for milk production increase. There was no evidence that greater total lactation costs influence the ability of mothers to produce a pup in the next breeding season. Article in Journal/Newspaper Elephant Seals King George Island Mirounga leonina Polar Biology South Shetland Islands Southern Elephant Seals Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) King George Island South Shetland Islands Polar Biology 27 5 266 276 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Labelled-water methodology was used to quantify energy costs and energy transfer efficiency in 18 mother-pup pairs of southern elephant seals (Mirounga leonina) during lactation. During the lactation period, mothers lost a mean mass of 227±47 kg. Mass loss included 22% of the protein, 60% of the fat, and 51% of the energy in the mothers body upon arrival. Total body-energy reserves at parturition explained 69% of the variation in the total lactation costs and 50% of the variation in the pups body energy at weaning. On average, pups retained 48% of the mass, 49% of protein, 53% of fat and 51% of energy lost by their mothers. Greater, fatter females showed a decrease in the efficiency of energy and fat transfer and, at the same time, an increase in the efficiency of protein transfer. This may be due to an increased use of protein as metabolic fuel, as fat demands for milk production increase. There was no evidence that greater total lactation costs influence the ability of mothers to produce a pup in the next breeding season. |
format |
Article in Journal/Newspaper |
author |
Carlini, A. R. Márquez, M. E. I. Panarello, H. Ramdohr, S. Daneri, G. A. Bornemann, Horst Plötz, Joachim |
spellingShingle |
Carlini, A. R. Márquez, M. E. I. Panarello, H. Ramdohr, S. Daneri, G. A. Bornemann, Horst Plötz, Joachim Lactation costs in southern elephant seals at King George Island, South Shetland Islands |
author_facet |
Carlini, A. R. Márquez, M. E. I. Panarello, H. Ramdohr, S. Daneri, G. A. Bornemann, Horst Plötz, Joachim |
author_sort |
Carlini, A. R. |
title |
Lactation costs in southern elephant seals at King George Island, South Shetland Islands |
title_short |
Lactation costs in southern elephant seals at King George Island, South Shetland Islands |
title_full |
Lactation costs in southern elephant seals at King George Island, South Shetland Islands |
title_fullStr |
Lactation costs in southern elephant seals at King George Island, South Shetland Islands |
title_full_unstemmed |
Lactation costs in southern elephant seals at King George Island, South Shetland Islands |
title_sort |
lactation costs in southern elephant seals at king george island, south shetland islands |
publishDate |
2004 |
url |
https://epic.awi.de/id/eprint/10121/ https://doi.org/10.1007/s00300-003-0584-y https://hdl.handle.net/10013/epic.20617 |
geographic |
King George Island South Shetland Islands |
geographic_facet |
King George Island South Shetland Islands |
genre |
Elephant Seals King George Island Mirounga leonina Polar Biology South Shetland Islands Southern Elephant Seals |
genre_facet |
Elephant Seals King George Island Mirounga leonina Polar Biology South Shetland Islands Southern Elephant Seals |
op_source |
EPIC3Polar Biology, 27(5), pp. 266-276, ISBN: 0722-4060 (Paper) 14 |
op_relation |
Carlini, A. R. , Márquez, M. E. I. , Panarello, H. , Ramdohr, S. , Daneri, G. A. , Bornemann, H. and Plötz, J. (2004) Lactation costs in southern elephant seals at King George Island, South Shetland Islands , Polar Biology, 27 (5), pp. 266-276 . doi:10.1007/s00300-003-0584-y <https://doi.org/10.1007/s00300-003-0584-y> , hdl:10013/epic.20617 |
op_doi |
https://doi.org/10.1007/s00300-003-0584-y |
container_title |
Polar Biology |
container_volume |
27 |
container_issue |
5 |
container_start_page |
266 |
op_container_end_page |
276 |
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1776200028952461312 |