Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird
Life-history trade-offs are influenced by variation in individual state, with individuals in better condition often completing life-history stages with greater success. Although resource accrual significantly impacts key life-history decisions such as the timing of reproduction, little is known abou...
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Online Access: | https://doi.org/10.5061/dryad.h3r11 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::be6ff3ab97be7198f5f45bb56eface90 2023-05-15T17:10:55+02:00 Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird Hennin, Holly L. Wells-Berlin, Alicia M. Love, Oliver P. 2017-01-01 https://doi.org/10.5061/dryad.h3r11 undefined unknown Dryad Digital Repository https://dx.doi.org/10.5061/dryad.h3r11 http://dx.doi.org/10.5061/dryad.h3r11 lic_creative-commons 10.5061/dryad.h3r11 oai:easy.dans.knaw.nl:easy-dataset:92454 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:92454 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c baseline corticosterone body mass white-winged scoter captive study manipulation Melanitta fusca deglandi Life sciences medicine and health care envir psy Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2017 fttriple https://doi.org/10.5061/dryad.h3r11 2023-01-22T16:53:35Z Life-history trade-offs are influenced by variation in individual state, with individuals in better condition often completing life-history stages with greater success. Although resource accrual significantly impacts key life-history decisions such as the timing of reproduction, little is known about the underlying mechanisms driving resource accumulation. Baseline corticosterone (CORT, the primary avian glucocorticoid) mediates daily and seasonal energetics, responds to changes in food availability, and has been linked to foraging behavior, making it a strong potential driver of individual variation in resource accrual and deposition. Working with a captive colony of white-winged scoters (Melanitta fusca deglandi), we aimed to causally determine whether variation in baseline CORT drives individual body mass gains mediated through fattening rate (plasma triglycerides corrected for body mass). We implanted individuals with each of three treatment pellets to elevate CORT within a baseline range in a randomized order: control, low dose of CORT, high dose of CORT, then blood sampled and recorded body mass over a two-week period to track changes in baseline CORT, body mass, and fattening rates. The high CORT treatment significantly elevated levels of plasma hormone for a short period of time within the biologically relevant, baseline range for this species, but importantly did not inhibit the function of the HPA (hypothalamic–pituitary–adrenal) axis. Furthermore, an elevation in baseline CORT resulted in a consistent increase in body mass throughout the trial period compared to controls. This is some of the first empirical evidence demonstrating that elevations of baseline CORT within a biologically relevant range have a causal, direct, and positive influence on changes in body mass. Hennin 2016 - WWSC DataThese are data from an experiment in captive white-winged scoters in which we manipulated corticosterone to examine the profile of release of corticosterone over time, the impact on the HPA axis and subsequent ... Dataset Melanitta fusca Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
baseline corticosterone body mass white-winged scoter captive study manipulation Melanitta fusca deglandi Life sciences medicine and health care envir psy |
spellingShingle |
baseline corticosterone body mass white-winged scoter captive study manipulation Melanitta fusca deglandi Life sciences medicine and health care envir psy Hennin, Holly L. Wells-Berlin, Alicia M. Love, Oliver P. Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird |
topic_facet |
baseline corticosterone body mass white-winged scoter captive study manipulation Melanitta fusca deglandi Life sciences medicine and health care envir psy |
description |
Life-history trade-offs are influenced by variation in individual state, with individuals in better condition often completing life-history stages with greater success. Although resource accrual significantly impacts key life-history decisions such as the timing of reproduction, little is known about the underlying mechanisms driving resource accumulation. Baseline corticosterone (CORT, the primary avian glucocorticoid) mediates daily and seasonal energetics, responds to changes in food availability, and has been linked to foraging behavior, making it a strong potential driver of individual variation in resource accrual and deposition. Working with a captive colony of white-winged scoters (Melanitta fusca deglandi), we aimed to causally determine whether variation in baseline CORT drives individual body mass gains mediated through fattening rate (plasma triglycerides corrected for body mass). We implanted individuals with each of three treatment pellets to elevate CORT within a baseline range in a randomized order: control, low dose of CORT, high dose of CORT, then blood sampled and recorded body mass over a two-week period to track changes in baseline CORT, body mass, and fattening rates. The high CORT treatment significantly elevated levels of plasma hormone for a short period of time within the biologically relevant, baseline range for this species, but importantly did not inhibit the function of the HPA (hypothalamic–pituitary–adrenal) axis. Furthermore, an elevation in baseline CORT resulted in a consistent increase in body mass throughout the trial period compared to controls. This is some of the first empirical evidence demonstrating that elevations of baseline CORT within a biologically relevant range have a causal, direct, and positive influence on changes in body mass. Hennin 2016 - WWSC DataThese are data from an experiment in captive white-winged scoters in which we manipulated corticosterone to examine the profile of release of corticosterone over time, the impact on the HPA axis and subsequent ... |
format |
Dataset |
author |
Hennin, Holly L. Wells-Berlin, Alicia M. Love, Oliver P. |
author_facet |
Hennin, Holly L. Wells-Berlin, Alicia M. Love, Oliver P. |
author_sort |
Hennin, Holly L. |
title |
Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird |
title_short |
Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird |
title_full |
Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird |
title_fullStr |
Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird |
title_full_unstemmed |
Data from: Baseline glucocorticoids are drivers of body mass gain in a diving seabird |
title_sort |
data from: baseline glucocorticoids are drivers of body mass gain in a diving seabird |
publisher |
Dryad Digital Repository |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.h3r11 |
genre |
Melanitta fusca |
genre_facet |
Melanitta fusca |
op_source |
10.5061/dryad.h3r11 oai:easy.dans.knaw.nl:easy-dataset:92454 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:92454 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.h3r11 http://dx.doi.org/10.5061/dryad.h3r11 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.h3r11 |
_version_ |
1766067579069136896 |