Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins
Corticosterone has received considerable attention as the principal hormonal mediator of allostasis or physiological stress in wild animals. More recently, it has also been implicated in the regulation of parental care in breeding birds, particularly with respect to individual variation in foraging...
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ftdryad:oai:v1.datadryad.org:10255/dryad.38796 2023-05-15T15:44:43+02:00 Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins Crossin, Glenn T. Trathan, Phil N. Phillips, Richard A. Gorman, Kristen B. Dawson, Alistair Sakamoto, Kentaro Q. Williams, Tony D. Bird Island South Georgia 2012-03-27T17:49:00Z http://hdl.handle.net/10255/dryad.38796 https://doi.org/10.5061/dryad.f385721n unknown doi:10.5061/dryad.f385721n/1 doi:10.1086/666001 PMID:22673661 doi:10.5061/dryad.f385721n Crossin GT, Trathan PN, Phillips RA, Gorman KB, Dawson A, Sakamoto KQ, Williams TD (2012) Corticosterone predicts foraging behavior and parental care in macaroni penguins. The American Naturalist 180(1): E31-E41. http://hdl.handle.net/10255/dryad.38796 Behavior: reproductive Ecology: behavioral Ecology: evolutionary Ecology: physiological Endocrinology: behavioral Locomotion: diving Reproduction: strategies Bird Article 2012 ftdryad https://doi.org/10.5061/dryad.f385721n https://doi.org/10.5061/dryad.f385721n/1 https://doi.org/10.1086/666001 2020-01-01T14:56:07Z Corticosterone has received considerable attention as the principal hormonal mediator of allostasis or physiological stress in wild animals. More recently, it has also been implicated in the regulation of parental care in breeding birds, particularly with respect to individual variation in foraging behaviour and provisioning effort. There is also evidence that prolactin can work either inversely or additively with corticosterone to achieve this. Here we test the hypothesis that endogenous corticosterone plays a key physiological role in the control of foraging behaviour and parental care using a combination of exogenous corticosterone treatment, time-depth telemetry, and physiological sampling of female macaroni penguins (Eudyptes chrysolophus) during the brood-guard period of chick rearing, while simultaneously monitoring patterns of prolactin secretion. Plasma corticosterone levels were significantly higher in females given exogenous implants relative to those receiving sham implants. Increased corticosterone levels were associated with significantly higher levels of foraging and diving activity, and greater mass gain in implanted females. Elevated plasma corticosterone was also associated with an apparent fitness benefit in the form of increased chick mass. Plasma prolactin levels did not correlate with corticosterone levels at any time, nor was prolactin correlated with any measure of foraging behaviour or parental care. Our results provide support for the corticosterone-adaptation hypothesis, which predicts that higher corticosterone levels support increased foraging activity and parental effort. Article in Journal/Newspaper Bird Island Eudyptes chrysolophus Dryad Digital Repository (Duke University) Bird Island ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Behavior: reproductive Ecology: behavioral Ecology: evolutionary Ecology: physiological Endocrinology: behavioral Locomotion: diving Reproduction: strategies Bird |
spellingShingle |
Behavior: reproductive Ecology: behavioral Ecology: evolutionary Ecology: physiological Endocrinology: behavioral Locomotion: diving Reproduction: strategies Bird Crossin, Glenn T. Trathan, Phil N. Phillips, Richard A. Gorman, Kristen B. Dawson, Alistair Sakamoto, Kentaro Q. Williams, Tony D. Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins |
topic_facet |
Behavior: reproductive Ecology: behavioral Ecology: evolutionary Ecology: physiological Endocrinology: behavioral Locomotion: diving Reproduction: strategies Bird |
description |
Corticosterone has received considerable attention as the principal hormonal mediator of allostasis or physiological stress in wild animals. More recently, it has also been implicated in the regulation of parental care in breeding birds, particularly with respect to individual variation in foraging behaviour and provisioning effort. There is also evidence that prolactin can work either inversely or additively with corticosterone to achieve this. Here we test the hypothesis that endogenous corticosterone plays a key physiological role in the control of foraging behaviour and parental care using a combination of exogenous corticosterone treatment, time-depth telemetry, and physiological sampling of female macaroni penguins (Eudyptes chrysolophus) during the brood-guard period of chick rearing, while simultaneously monitoring patterns of prolactin secretion. Plasma corticosterone levels were significantly higher in females given exogenous implants relative to those receiving sham implants. Increased corticosterone levels were associated with significantly higher levels of foraging and diving activity, and greater mass gain in implanted females. Elevated plasma corticosterone was also associated with an apparent fitness benefit in the form of increased chick mass. Plasma prolactin levels did not correlate with corticosterone levels at any time, nor was prolactin correlated with any measure of foraging behaviour or parental care. Our results provide support for the corticosterone-adaptation hypothesis, which predicts that higher corticosterone levels support increased foraging activity and parental effort. |
format |
Article in Journal/Newspaper |
author |
Crossin, Glenn T. Trathan, Phil N. Phillips, Richard A. Gorman, Kristen B. Dawson, Alistair Sakamoto, Kentaro Q. Williams, Tony D. |
author_facet |
Crossin, Glenn T. Trathan, Phil N. Phillips, Richard A. Gorman, Kristen B. Dawson, Alistair Sakamoto, Kentaro Q. Williams, Tony D. |
author_sort |
Crossin, Glenn T. |
title |
Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins |
title_short |
Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins |
title_full |
Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins |
title_fullStr |
Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins |
title_full_unstemmed |
Data from: Corticosterone predicts foraging behavior and parental care in macaroni penguins |
title_sort |
data from: corticosterone predicts foraging behavior and parental care in macaroni penguins |
publishDate |
2012 |
url |
http://hdl.handle.net/10255/dryad.38796 https://doi.org/10.5061/dryad.f385721n |
op_coverage |
Bird Island South Georgia |
long_lat |
ENVELOPE(-38.060,-38.060,-54.004,-54.004) |
geographic |
Bird Island |
geographic_facet |
Bird Island |
genre |
Bird Island Eudyptes chrysolophus |
genre_facet |
Bird Island Eudyptes chrysolophus |
op_relation |
doi:10.5061/dryad.f385721n/1 doi:10.1086/666001 PMID:22673661 doi:10.5061/dryad.f385721n Crossin GT, Trathan PN, Phillips RA, Gorman KB, Dawson A, Sakamoto KQ, Williams TD (2012) Corticosterone predicts foraging behavior and parental care in macaroni penguins. The American Naturalist 180(1): E31-E41. http://hdl.handle.net/10255/dryad.38796 |
op_doi |
https://doi.org/10.5061/dryad.f385721n https://doi.org/10.5061/dryad.f385721n/1 https://doi.org/10.1086/666001 |
_version_ |
1766379091712278528 |