Time and energy constraints in pinniped lactation
Previous reviews have recognized patterns of lactation in pinnipeds divided along phylogenetic lines. This study extended previous models of lactation in pinnipeds by explicitly taking into account all the energetic costs to mothers. Based on an analysis of time-energy budgets, the feasible lactatio...
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/time-and-energy-constraints-in-pinniped-lactation(9154637f-dc82-45d9-a581-696fa094f40a).html http://www.scopus.com/inward/record.url?scp=0031733934&partnerID=8YFLogxK http://www.journals.uchichago.edu/AN/ |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/9154637f-dc82-45d9-a581-696fa094f40a 2023-05-15T13:45:51+02:00 Time and energy constraints in pinniped lactation Boyd, Ian Lamont 1998-11 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/time-and-energy-constraints-in-pinniped-lactation(9154637f-dc82-45d9-a581-696fa094f40a).html http://www.scopus.com/inward/record.url?scp=0031733934&partnerID=8YFLogxK http://www.journals.uchichago.edu/AN/ eng eng info:eu-repo/semantics/restrictedAccess Boyd , I L 1998 , ' Time and energy constraints in pinniped lactation ' , American Naturalist , vol. 152 , pp. 717-728 . pinniped evolution lactation energetics ANTARCTIC FUR SEALS SOUTHERN ELEPHANT SEALS PHOCA-HISPIDA PUPS HALICHOERUS-GRYPUS MIROUNGA-ANGUSTIROSTRIS ARCTOCEPHALUS-GAZELLA METABOLIC RATES MASS-TRANSFER HARP SEAL CYSTOPHORA-CRISTATA article 1998 ftunstandrewcris 2021-12-26T14:10:06Z Previous reviews have recognized patterns of lactation in pinnipeds divided along phylogenetic lines. This study extended previous models of lactation in pinnipeds by explicitly taking into account all the energetic costs to mothers. Based on an analysis of time-energy budgets, the feasible lactation strategy for a species can be shown to depend on body mass. Due to increased metabolic costs of maintenance, species with a large body mass cannot normally sustain lactation by foraging during lactation unless they have access to rich local prey resources. Consequently, large pinnipeds must normally sustain lactation from body reserves. This disadvantage is compensated in large pinnipeds by freedom to forage in support of offspring at greater range whereas small pinnipeds are restricted to foraging within the locality of the pupping colony. In the absence of correlations between major life-history variables and body mass in pinnipeds, the principal patterns of lactation are likely to be different solutions to the trade-off between foraging on a relatively rich prey resource at long range and foraging on a poorer prey resource within a restricted range. Hence phylogeny may be less important than adaptation in the evolution of pinniped lactation. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Cystophora cristata Elephant Seals Harp Seal Phoca hispida Southern Elephant Seals University of St Andrews: Research Portal Antarctic |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
pinniped evolution lactation energetics ANTARCTIC FUR SEALS SOUTHERN ELEPHANT SEALS PHOCA-HISPIDA PUPS HALICHOERUS-GRYPUS MIROUNGA-ANGUSTIROSTRIS ARCTOCEPHALUS-GAZELLA METABOLIC RATES MASS-TRANSFER HARP SEAL CYSTOPHORA-CRISTATA |
spellingShingle |
pinniped evolution lactation energetics ANTARCTIC FUR SEALS SOUTHERN ELEPHANT SEALS PHOCA-HISPIDA PUPS HALICHOERUS-GRYPUS MIROUNGA-ANGUSTIROSTRIS ARCTOCEPHALUS-GAZELLA METABOLIC RATES MASS-TRANSFER HARP SEAL CYSTOPHORA-CRISTATA Boyd, Ian Lamont Time and energy constraints in pinniped lactation |
topic_facet |
pinniped evolution lactation energetics ANTARCTIC FUR SEALS SOUTHERN ELEPHANT SEALS PHOCA-HISPIDA PUPS HALICHOERUS-GRYPUS MIROUNGA-ANGUSTIROSTRIS ARCTOCEPHALUS-GAZELLA METABOLIC RATES MASS-TRANSFER HARP SEAL CYSTOPHORA-CRISTATA |
description |
Previous reviews have recognized patterns of lactation in pinnipeds divided along phylogenetic lines. This study extended previous models of lactation in pinnipeds by explicitly taking into account all the energetic costs to mothers. Based on an analysis of time-energy budgets, the feasible lactation strategy for a species can be shown to depend on body mass. Due to increased metabolic costs of maintenance, species with a large body mass cannot normally sustain lactation by foraging during lactation unless they have access to rich local prey resources. Consequently, large pinnipeds must normally sustain lactation from body reserves. This disadvantage is compensated in large pinnipeds by freedom to forage in support of offspring at greater range whereas small pinnipeds are restricted to foraging within the locality of the pupping colony. In the absence of correlations between major life-history variables and body mass in pinnipeds, the principal patterns of lactation are likely to be different solutions to the trade-off between foraging on a relatively rich prey resource at long range and foraging on a poorer prey resource within a restricted range. Hence phylogeny may be less important than adaptation in the evolution of pinniped lactation. |
format |
Article in Journal/Newspaper |
author |
Boyd, Ian Lamont |
author_facet |
Boyd, Ian Lamont |
author_sort |
Boyd, Ian Lamont |
title |
Time and energy constraints in pinniped lactation |
title_short |
Time and energy constraints in pinniped lactation |
title_full |
Time and energy constraints in pinniped lactation |
title_fullStr |
Time and energy constraints in pinniped lactation |
title_full_unstemmed |
Time and energy constraints in pinniped lactation |
title_sort |
time and energy constraints in pinniped lactation |
publishDate |
1998 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/time-and-energy-constraints-in-pinniped-lactation(9154637f-dc82-45d9-a581-696fa094f40a).html http://www.scopus.com/inward/record.url?scp=0031733934&partnerID=8YFLogxK http://www.journals.uchichago.edu/AN/ |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Cystophora cristata Elephant Seals Harp Seal Phoca hispida Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Antarctic Fur Seals Arctocephalus gazella Cystophora cristata Elephant Seals Harp Seal Phoca hispida Southern Elephant Seals |
op_source |
Boyd , I L 1998 , ' Time and energy constraints in pinniped lactation ' , American Naturalist , vol. 152 , pp. 717-728 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766231704748425216 |