Costs of reproduction and carry-over effects in breeding albatrosses
© Antarctic Science Ltd 2016. We investigated the physiology of two closely related albatross species relative to their breeding strategy: black-browed albatrosses (Thalassarche melanophris) breed annually, while grey-headed albatrosses (T. chrysostoma) breed biennially. From observations of breedin...
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ftlouisianastuir:oai:digitalcommons.lsu.edu:biosci_pubs-3343 2023-06-11T04:06:41+02:00 Costs of reproduction and carry-over effects in breeding albatrosses Crossin, Glenn T. Phillips, Richard A. Lattin, Christine R. Romero, L. Michael Bordeleau, Xavier Harris, Christopher M. Love, Oliver P. Williams, Tony D. 2017-04-01T07:00:00Z application/pdf https://digitalcommons.lsu.edu/biosci_pubs/2344 https://doi.org/10.1017/S0954102016000560 https://digitalcommons.lsu.edu/context/biosci_pubs/article/3343/viewcontent/2344.pdf unknown LSU Digital Commons https://digitalcommons.lsu.edu/biosci_pubs/2344 doi:10.1017/S0954102016000560 https://digitalcommons.lsu.edu/context/biosci_pubs/article/3343/viewcontent/2344.pdf Faculty Publications feather corticosterone glucocorticoids haematocrit migration testosterone triglycerides text 2017 ftlouisianastuir https://doi.org/10.1017/S0954102016000560 2023-05-28T18:19:21Z © Antarctic Science Ltd 2016. We investigated the physiology of two closely related albatross species relative to their breeding strategy: black-browed albatrosses (Thalassarche melanophris) breed annually, while grey-headed albatrosses (T. chrysostoma) breed biennially. From observations of breeding fate and blood samples collected at the end of breeding in one season and feather corticosterone levels (fCort) sampled at the beginning of the next breeding season, we found that in both species some post-breeding physiological parameters differed according to breeding outcome (successful, failed, deferred). Correlations between post-breeding physiology and fCort, and links to future breeding decisions, were examined. In black-browed albatrosses, post-breeding physiology and fCort were not significantly correlated, but fCort independently predicted breeding decision the next year, which we interpret as a possible migratory carry-over effect. In grey-headed albatrosses, post-breeding triglyceride levels were negatively correlated with fCort, but only in females, which we interpret as a potential cost of reproduction. However, this potential cost did not carry-over to future breeding in the grey-headed albatrosses. None of the variables predicted future breeding decisions. We suggest that biennial breeding in the grey-headed albatrosses may have evolved as a strategy to buffer against the apparent susceptibility of females to negative physiological costs of reproduction. Future studies are needed to confirm this. Text Antarc* Antarctic LSU Digital Commons (Louisiana State University) Antarctic Antarctic Science 29 2 155 164 |
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LSU Digital Commons (Louisiana State University) |
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feather corticosterone glucocorticoids haematocrit migration testosterone triglycerides |
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feather corticosterone glucocorticoids haematocrit migration testosterone triglycerides Crossin, Glenn T. Phillips, Richard A. Lattin, Christine R. Romero, L. Michael Bordeleau, Xavier Harris, Christopher M. Love, Oliver P. Williams, Tony D. Costs of reproduction and carry-over effects in breeding albatrosses |
topic_facet |
feather corticosterone glucocorticoids haematocrit migration testosterone triglycerides |
description |
© Antarctic Science Ltd 2016. We investigated the physiology of two closely related albatross species relative to their breeding strategy: black-browed albatrosses (Thalassarche melanophris) breed annually, while grey-headed albatrosses (T. chrysostoma) breed biennially. From observations of breeding fate and blood samples collected at the end of breeding in one season and feather corticosterone levels (fCort) sampled at the beginning of the next breeding season, we found that in both species some post-breeding physiological parameters differed according to breeding outcome (successful, failed, deferred). Correlations between post-breeding physiology and fCort, and links to future breeding decisions, were examined. In black-browed albatrosses, post-breeding physiology and fCort were not significantly correlated, but fCort independently predicted breeding decision the next year, which we interpret as a possible migratory carry-over effect. In grey-headed albatrosses, post-breeding triglyceride levels were negatively correlated with fCort, but only in females, which we interpret as a potential cost of reproduction. However, this potential cost did not carry-over to future breeding in the grey-headed albatrosses. None of the variables predicted future breeding decisions. We suggest that biennial breeding in the grey-headed albatrosses may have evolved as a strategy to buffer against the apparent susceptibility of females to negative physiological costs of reproduction. Future studies are needed to confirm this. |
format |
Text |
author |
Crossin, Glenn T. Phillips, Richard A. Lattin, Christine R. Romero, L. Michael Bordeleau, Xavier Harris, Christopher M. Love, Oliver P. Williams, Tony D. |
author_facet |
Crossin, Glenn T. Phillips, Richard A. Lattin, Christine R. Romero, L. Michael Bordeleau, Xavier Harris, Christopher M. Love, Oliver P. Williams, Tony D. |
author_sort |
Crossin, Glenn T. |
title |
Costs of reproduction and carry-over effects in breeding albatrosses |
title_short |
Costs of reproduction and carry-over effects in breeding albatrosses |
title_full |
Costs of reproduction and carry-over effects in breeding albatrosses |
title_fullStr |
Costs of reproduction and carry-over effects in breeding albatrosses |
title_full_unstemmed |
Costs of reproduction and carry-over effects in breeding albatrosses |
title_sort |
costs of reproduction and carry-over effects in breeding albatrosses |
publisher |
LSU Digital Commons |
publishDate |
2017 |
url |
https://digitalcommons.lsu.edu/biosci_pubs/2344 https://doi.org/10.1017/S0954102016000560 https://digitalcommons.lsu.edu/context/biosci_pubs/article/3343/viewcontent/2344.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Faculty Publications |
op_relation |
https://digitalcommons.lsu.edu/biosci_pubs/2344 doi:10.1017/S0954102016000560 https://digitalcommons.lsu.edu/context/biosci_pubs/article/3343/viewcontent/2344.pdf |
op_doi |
https://doi.org/10.1017/S0954102016000560 |
container_title |
Antarctic Science |
container_volume |
29 |
container_issue |
2 |
container_start_page |
155 |
op_container_end_page |
164 |
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1768378733890109440 |