Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant
Oxidative stress is a likely consequence of hard physical exertion and thus a potential mediator of life-history trade-offs in migratory animals. However, little is known about the relative importance of intrinsic and extrinsic stressors on the oxidative state of individuals in wild populations. We...
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ftpubmed:oai:pubmedcentral.nih.gov:6371914 2023-05-15T15:46:07+02:00 Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant Bodey, Thomas W. Cleasby, Ian R. Blount, Jonathan D. Vigfusdottir, Freydis Mackie, Kerry Bearhop, Stuart 2019-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6371914/ http://www.ncbi.nlm.nih.gov/pubmed/30958216 https://doi.org/10.1098/rsbl.2018.0750 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6371914/ http://www.ncbi.nlm.nih.gov/pubmed/30958216 http://dx.doi.org/10.1098/rsbl.2018.0750 © 2019 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. Physiology Text 2019 ftpubmed https://doi.org/10.1098/rsbl.2018.0750 2020-01-05T01:22:22Z Oxidative stress is a likely consequence of hard physical exertion and thus a potential mediator of life-history trade-offs in migratory animals. However, little is known about the relative importance of intrinsic and extrinsic stressors on the oxidative state of individuals in wild populations. We quantified the relationships between air temperature, sex, body condition and three markers of oxidative state (malondialdehyde, superoxide dismutase and total antioxidant capacity) across hundreds of individuals of a long-distance migrant (the brent goose Branta bernicla hrota) during wintering and spring staging. We found that air temperature and migratory stage were the strongest predictors of oxidative state. This emphasizes the importance of extrinsic factors in regulating the oxidative state of migrating birds, with differential effects across the migration. The significance of abiotic effects demonstrates an additional mechanism by which changing climates may affect migratory costs. Text Branta bernicla Brent goose PubMed Central (PMC) Biology Letters 15 1 20180750 |
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English |
topic |
Physiology |
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Physiology Bodey, Thomas W. Cleasby, Ian R. Blount, Jonathan D. Vigfusdottir, Freydis Mackie, Kerry Bearhop, Stuart Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant |
topic_facet |
Physiology |
description |
Oxidative stress is a likely consequence of hard physical exertion and thus a potential mediator of life-history trade-offs in migratory animals. However, little is known about the relative importance of intrinsic and extrinsic stressors on the oxidative state of individuals in wild populations. We quantified the relationships between air temperature, sex, body condition and three markers of oxidative state (malondialdehyde, superoxide dismutase and total antioxidant capacity) across hundreds of individuals of a long-distance migrant (the brent goose Branta bernicla hrota) during wintering and spring staging. We found that air temperature and migratory stage were the strongest predictors of oxidative state. This emphasizes the importance of extrinsic factors in regulating the oxidative state of migrating birds, with differential effects across the migration. The significance of abiotic effects demonstrates an additional mechanism by which changing climates may affect migratory costs. |
format |
Text |
author |
Bodey, Thomas W. Cleasby, Ian R. Blount, Jonathan D. Vigfusdottir, Freydis Mackie, Kerry Bearhop, Stuart |
author_facet |
Bodey, Thomas W. Cleasby, Ian R. Blount, Jonathan D. Vigfusdottir, Freydis Mackie, Kerry Bearhop, Stuart |
author_sort |
Bodey, Thomas W. |
title |
Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant |
title_short |
Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant |
title_full |
Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant |
title_fullStr |
Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant |
title_full_unstemmed |
Measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant |
title_sort |
measures of oxidative state are primarily driven by extrinsic factors in a long-distance migrant |
publisher |
The Royal Society |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6371914/ http://www.ncbi.nlm.nih.gov/pubmed/30958216 https://doi.org/10.1098/rsbl.2018.0750 |
genre |
Branta bernicla Brent goose |
genre_facet |
Branta bernicla Brent goose |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6371914/ http://www.ncbi.nlm.nih.gov/pubmed/30958216 http://dx.doi.org/10.1098/rsbl.2018.0750 |
op_rights |
© 2019 The Author(s) http://royalsocietypublishing.org/licence Published by the Royal Society. All rights reserved. |
op_doi |
https://doi.org/10.1098/rsbl.2018.0750 |
container_title |
Biology Letters |
container_volume |
15 |
container_issue |
1 |
container_start_page |
20180750 |
_version_ |
1766380800005111808 |