Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals
Mounting an immune response requires substantial energy. Ecological immunology theory predicts allocation trade-offs between reproductive effort and immune responses under conditions of energy limitation. Little is known about the impact of capital breeding strategies on energy allocation to immune...
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ftdryad:oai:v1.datadryad.org:10255/dryad.90700 2023-05-15T16:05:41+02:00 Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals Peck, Hannah E. Costa, Daniel P. Crocker, Daniel E. 2015-06-29T19:26:36Z http://hdl.handle.net/10255/dryad.90700 https://doi.org/10.5061/dryad.g1994 unknown doi:10.5061/dryad.g1994/1 doi:10.1111/1365-2435.12504 doi:10.5061/dryad.g1994 Peck HE, Costa DP, Crocker DE (2016) Body reserves influence allocation to immune responses in capital breeding female northern elephant seals. Functional Ecology 30(3): 389–397. http://hdl.handle.net/10255/dryad.90700 Ecological immunology Fasting Pinnipeds Reproduction Trade-offs Article 2015 ftdryad https://doi.org/10.5061/dryad.g1994 https://doi.org/10.5061/dryad.g1994/1 https://doi.org/10.1111/1365-2435.12504 2020-01-01T15:21:26Z Mounting an immune response requires substantial energy. Ecological immunology theory predicts allocation trade-offs between reproductive effort and immune responses under conditions of energy limitation. Little is known about the impact of capital breeding strategies on energy allocation to immune function in mammals. Northern elephant seals (NES) forage in the marine environment, breed in dense terrestrial colonies and exhibit high rates of energy expenditure for lactation while fasting. Body reserves strongly influence reproductive effort and lactation requires elevation of plasma cortisol for energy mobilization. We characterized immune response by measuring a suite of immune markers including cytokines, an acute phase protein, and immunoglobulins early and late in breeding and moult haul-outs in 197 samples from 129 female NES. We explored potential impacts of breeding, body condition and plasma cortisol on immune function. Immune responses were greater and more varied during breeding. Adiposity had positive associations with innate immune responses across all life-history stages. Body mass had positive associations with both adaptive and innate immune responses early in fasts. Females with lower fat reserves showed reduced innate immune responses at the end of lactation. Immunoglobulin E, a marker of immune response to parasitic infection, exhibited a significant negative association with cortisol across all life-history stages. These data suggest that breeding carries an immune cost and provide evidence for allocation trade-offs between immune function and breeding effort. These trade-offs may reflect a compromise between immune costs inherent in colonial breeding and energetic limitations that arise in use of capital breeding strategies. Variation in evidence for immunosuppressive effects of cortisol suggests that decoupling of these effects may be limited to specific aspects of the immune response during terrestrial fasting. Immune responses that are required for survival may be modulated relative to the energetic demands required for successful reproduction. Article in Journal/Newspaper Elephant Seals Dryad Digital Repository (Duke University) Nes ENVELOPE(7.634,7.634,62.795,62.795) Nes’ ENVELOPE(44.681,44.681,66.600,66.600) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Ecological immunology Fasting Pinnipeds Reproduction Trade-offs |
spellingShingle |
Ecological immunology Fasting Pinnipeds Reproduction Trade-offs Peck, Hannah E. Costa, Daniel P. Crocker, Daniel E. Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals |
topic_facet |
Ecological immunology Fasting Pinnipeds Reproduction Trade-offs |
description |
Mounting an immune response requires substantial energy. Ecological immunology theory predicts allocation trade-offs between reproductive effort and immune responses under conditions of energy limitation. Little is known about the impact of capital breeding strategies on energy allocation to immune function in mammals. Northern elephant seals (NES) forage in the marine environment, breed in dense terrestrial colonies and exhibit high rates of energy expenditure for lactation while fasting. Body reserves strongly influence reproductive effort and lactation requires elevation of plasma cortisol for energy mobilization. We characterized immune response by measuring a suite of immune markers including cytokines, an acute phase protein, and immunoglobulins early and late in breeding and moult haul-outs in 197 samples from 129 female NES. We explored potential impacts of breeding, body condition and plasma cortisol on immune function. Immune responses were greater and more varied during breeding. Adiposity had positive associations with innate immune responses across all life-history stages. Body mass had positive associations with both adaptive and innate immune responses early in fasts. Females with lower fat reserves showed reduced innate immune responses at the end of lactation. Immunoglobulin E, a marker of immune response to parasitic infection, exhibited a significant negative association with cortisol across all life-history stages. These data suggest that breeding carries an immune cost and provide evidence for allocation trade-offs between immune function and breeding effort. These trade-offs may reflect a compromise between immune costs inherent in colonial breeding and energetic limitations that arise in use of capital breeding strategies. Variation in evidence for immunosuppressive effects of cortisol suggests that decoupling of these effects may be limited to specific aspects of the immune response during terrestrial fasting. Immune responses that are required for survival may be modulated relative to the energetic demands required for successful reproduction. |
format |
Article in Journal/Newspaper |
author |
Peck, Hannah E. Costa, Daniel P. Crocker, Daniel E. |
author_facet |
Peck, Hannah E. Costa, Daniel P. Crocker, Daniel E. |
author_sort |
Peck, Hannah E. |
title |
Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals |
title_short |
Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals |
title_full |
Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals |
title_fullStr |
Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals |
title_full_unstemmed |
Data from: Body reserves influence allocation to immune responses in capital breeding female northern elephant seals |
title_sort |
data from: body reserves influence allocation to immune responses in capital breeding female northern elephant seals |
publishDate |
2015 |
url |
http://hdl.handle.net/10255/dryad.90700 https://doi.org/10.5061/dryad.g1994 |
long_lat |
ENVELOPE(7.634,7.634,62.795,62.795) ENVELOPE(44.681,44.681,66.600,66.600) |
geographic |
Nes Nes’ |
geographic_facet |
Nes Nes’ |
genre |
Elephant Seals |
genre_facet |
Elephant Seals |
op_relation |
doi:10.5061/dryad.g1994/1 doi:10.1111/1365-2435.12504 doi:10.5061/dryad.g1994 Peck HE, Costa DP, Crocker DE (2016) Body reserves influence allocation to immune responses in capital breeding female northern elephant seals. Functional Ecology 30(3): 389–397. http://hdl.handle.net/10255/dryad.90700 |
op_doi |
https://doi.org/10.5061/dryad.g1994 https://doi.org/10.5061/dryad.g1994/1 https://doi.org/10.1111/1365-2435.12504 |
_version_ |
1766401581051281408 |