Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels"
Life-history theory predicts that, to optimize their fitness, individuals should increase their reproductive effort as their residual reproductive value decreases. Accordingly, several studies have shown that individuals downregulate their glucocorticoid stress response (a proxy of reproductive inve...
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ftdatacite:10.6084/m9.figshare.c.4782564.v1 2023-05-15T18:20:09+02:00 Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels" Angelier, Frédéric Chastel, Olivier Lendvai, Adam Z. Parenteau, Charline Weimerskirch, Henri Wingfield, John C. 2019 https://dx.doi.org/10.6084/m9.figshare.c.4782564.v1 https://rs.figshare.com/collections/Supplementary_material_from_When_do_older_birds_better_resist_stress_A_study_of_the_corticosterone_stress_response_in_snow_petrels_/4782564/1 unknown The Royal Society https://dx.doi.org/10.1098/rsbl.2019.0733 https://dx.doi.org/10.6084/m9.figshare.c.4782564 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Evolutionary Biology FOS Biological sciences Ecology 60801 Animal Behaviour Collection article 2019 ftdatacite https://doi.org/10.6084/m9.figshare.c.4782564.v1 https://doi.org/10.1098/rsbl.2019.0733 https://doi.org/10.6084/m9.figshare.c.4782564 2021-11-05T12:55:41Z Life-history theory predicts that, to optimize their fitness, individuals should increase their reproductive effort as their residual reproductive value decreases. Accordingly, several studies have shown that individuals downregulate their glucocorticoid stress response (a proxy of reproductive investment in vertebrates) as they age, and as the subsequent reproductive value decreases. However, and surprisingly, results appear inconsistent, suggesting that the environmental context or the individual state may affect the relationship between age and reproductive effort. Here, we tested for the first time this hypothesis, and more specifically, whether this attenuation of the corticosterone stress response with advancing age depends on the energetic status of individuals. We compared the influence of age on the corticosterone stress response between fasting and non-fasting breeding snow petrels ( Pagodroma nivea ), an extremely long-lived bird. As expected, we found that the corticosterone stress response was attenuated in old petrels, but only when they were not fasting. Interestingly, this pattern was not apparent in fasting petrels, suggesting that old birds downregulate their corticosterone stress response and increase their parental investment only when they are in good body condition. At the ultimate level, old individuals may maintain a strong corticosterone stress response when fasting because the survival costs of increased stress resistance and parental effort might then outweigh their reproductive benefits. Article in Journal/Newspaper Snow Petrels DataCite Metadata Store (German National Library of Science and Technology) Nivea ENVELOPE(-45.479,-45.479,-60.580,-60.580) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Evolutionary Biology FOS Biological sciences Ecology 60801 Animal Behaviour |
spellingShingle |
Evolutionary Biology FOS Biological sciences Ecology 60801 Animal Behaviour Angelier, Frédéric Chastel, Olivier Lendvai, Adam Z. Parenteau, Charline Weimerskirch, Henri Wingfield, John C. Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels" |
topic_facet |
Evolutionary Biology FOS Biological sciences Ecology 60801 Animal Behaviour |
description |
Life-history theory predicts that, to optimize their fitness, individuals should increase their reproductive effort as their residual reproductive value decreases. Accordingly, several studies have shown that individuals downregulate their glucocorticoid stress response (a proxy of reproductive investment in vertebrates) as they age, and as the subsequent reproductive value decreases. However, and surprisingly, results appear inconsistent, suggesting that the environmental context or the individual state may affect the relationship between age and reproductive effort. Here, we tested for the first time this hypothesis, and more specifically, whether this attenuation of the corticosterone stress response with advancing age depends on the energetic status of individuals. We compared the influence of age on the corticosterone stress response between fasting and non-fasting breeding snow petrels ( Pagodroma nivea ), an extremely long-lived bird. As expected, we found that the corticosterone stress response was attenuated in old petrels, but only when they were not fasting. Interestingly, this pattern was not apparent in fasting petrels, suggesting that old birds downregulate their corticosterone stress response and increase their parental investment only when they are in good body condition. At the ultimate level, old individuals may maintain a strong corticosterone stress response when fasting because the survival costs of increased stress resistance and parental effort might then outweigh their reproductive benefits. |
format |
Article in Journal/Newspaper |
author |
Angelier, Frédéric Chastel, Olivier Lendvai, Adam Z. Parenteau, Charline Weimerskirch, Henri Wingfield, John C. |
author_facet |
Angelier, Frédéric Chastel, Olivier Lendvai, Adam Z. Parenteau, Charline Weimerskirch, Henri Wingfield, John C. |
author_sort |
Angelier, Frédéric |
title |
Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels" |
title_short |
Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels" |
title_full |
Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels" |
title_fullStr |
Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels" |
title_full_unstemmed |
Supplementary material from "When do older birds better resist stress? A study of the corticosterone stress response in snow petrels" |
title_sort |
supplementary material from "when do older birds better resist stress? a study of the corticosterone stress response in snow petrels" |
publisher |
The Royal Society |
publishDate |
2019 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.4782564.v1 https://rs.figshare.com/collections/Supplementary_material_from_When_do_older_birds_better_resist_stress_A_study_of_the_corticosterone_stress_response_in_snow_petrels_/4782564/1 |
long_lat |
ENVELOPE(-45.479,-45.479,-60.580,-60.580) |
geographic |
Nivea |
geographic_facet |
Nivea |
genre |
Snow Petrels |
genre_facet |
Snow Petrels |
op_relation |
https://dx.doi.org/10.1098/rsbl.2019.0733 https://dx.doi.org/10.6084/m9.figshare.c.4782564 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.4782564.v1 https://doi.org/10.1098/rsbl.2019.0733 https://doi.org/10.6084/m9.figshare.c.4782564 |
_version_ |
1766197628873211904 |