Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern.
International audience The influence of age or breeding experience on reproductive success in vertebrates is well known but physiological mechanisms came into focus just recently. Assessing hormone levels could allow insights into these mechanisms and reproductive strategies in long-lived species. P...
Published in: | General and Comparative Endocrinology |
---|---|
Main Authors: | , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2012
|
Subjects: | |
Online Access: | https://hal.science/hal-00721790 https://doi.org/10.1016/j.ygcen.2012.06.022 |
id |
ftccsdartic:oai:HAL:hal-00721790v1 |
---|---|
record_format |
openpolar |
spelling |
ftccsdartic:oai:HAL:hal-00721790v1 2024-02-11T10:02:57+01:00 Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern. Riechert, Juliane Chastel, Olivier Becker, Peter H Institute of Avian Research Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) 2012-06-28 https://hal.science/hal-00721790 https://doi.org/10.1016/j.ygcen.2012.06.022 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ygcen.2012.06.022 info:eu-repo/semantics/altIdentifier/pmid/22750538 hal-00721790 https://hal.science/hal-00721790 doi:10.1016/j.ygcen.2012.06.022 PUBMED: 22750538 ISSN: 0016-6480 EISSN: 1095-6840 General and Comparative Endocrinology https://hal.science/hal-00721790 General and Comparative Endocrinology, 2012, 178 (2), pp.391-399. ⟨10.1016/j.ygcen.2012.06.022⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2012 ftccsdartic https://doi.org/10.1016/j.ygcen.2012.06.022 2024-01-27T23:38:18Z International audience The influence of age or breeding experience on reproductive success in vertebrates is well known but physiological mechanisms came into focus just recently. Assessing hormone levels could allow insights into these mechanisms and reproductive strategies in long-lived species. Prolactin and corticosterone are two hormones involved in breeding decisions: high prolactin values are necessary for expressing breeding behavior whereas corticosterone is related to activity or stress. We analyzed baseline prolactin and corticosterone under field conditions in common terns (Sterna hirundo) between 2006 and 2010. We took 760 blood samples of 346 known birds 9-14days after their clutch completion, obtained via blood-sucking bugs (Dipetalogaster maximus), a non-invasive method with negligible stress for the birds. Many individuals were sampled repeatedly during the study period allowing investigation of hormone change on individual level. Prolactin levels increased during the early breeding career, which was confirmed on individual level, whereas corticosterone levels increased mostly in experienced birds, more pronounced in males. Low hormone levels during the first years of breeding could indicate a reduced ability of the endocrine system to secret hormones or it might express a down-regulation to limit parental expenditure. Higher corticosterone values of males could be related to increased foraging activity. Amongst the oldest birds, prolactin seemed to increase in males but not in females. This possible consequence of female senescence might be compensated by high values of male mates. Body mass showed only a weak positive correlation with prolactin level and no correlation with corticosterone concentration. Article in Journal/Newspaper Common tern Sterna hirundo Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) General and Comparative Endocrinology 178 2 391 399 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Riechert, Juliane Chastel, Olivier Becker, Peter H Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern. |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience The influence of age or breeding experience on reproductive success in vertebrates is well known but physiological mechanisms came into focus just recently. Assessing hormone levels could allow insights into these mechanisms and reproductive strategies in long-lived species. Prolactin and corticosterone are two hormones involved in breeding decisions: high prolactin values are necessary for expressing breeding behavior whereas corticosterone is related to activity or stress. We analyzed baseline prolactin and corticosterone under field conditions in common terns (Sterna hirundo) between 2006 and 2010. We took 760 blood samples of 346 known birds 9-14days after their clutch completion, obtained via blood-sucking bugs (Dipetalogaster maximus), a non-invasive method with negligible stress for the birds. Many individuals were sampled repeatedly during the study period allowing investigation of hormone change on individual level. Prolactin levels increased during the early breeding career, which was confirmed on individual level, whereas corticosterone levels increased mostly in experienced birds, more pronounced in males. Low hormone levels during the first years of breeding could indicate a reduced ability of the endocrine system to secret hormones or it might express a down-regulation to limit parental expenditure. Higher corticosterone values of males could be related to increased foraging activity. Amongst the oldest birds, prolactin seemed to increase in males but not in females. This possible consequence of female senescence might be compensated by high values of male mates. Body mass showed only a weak positive correlation with prolactin level and no correlation with corticosterone concentration. |
author2 |
Institute of Avian Research Centre d'Études Biologiques de Chizé (CEBC) Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Riechert, Juliane Chastel, Olivier Becker, Peter H |
author_facet |
Riechert, Juliane Chastel, Olivier Becker, Peter H |
author_sort |
Riechert, Juliane |
title |
Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern. |
title_short |
Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern. |
title_full |
Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern. |
title_fullStr |
Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern. |
title_full_unstemmed |
Why do experienced birds reproduce better? Possible endocrine mechanisms in a long-lived seabird, the common tern. |
title_sort |
why do experienced birds reproduce better? possible endocrine mechanisms in a long-lived seabird, the common tern. |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00721790 https://doi.org/10.1016/j.ygcen.2012.06.022 |
genre |
Common tern Sterna hirundo |
genre_facet |
Common tern Sterna hirundo |
op_source |
ISSN: 0016-6480 EISSN: 1095-6840 General and Comparative Endocrinology https://hal.science/hal-00721790 General and Comparative Endocrinology, 2012, 178 (2), pp.391-399. ⟨10.1016/j.ygcen.2012.06.022⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ygcen.2012.06.022 info:eu-repo/semantics/altIdentifier/pmid/22750538 hal-00721790 https://hal.science/hal-00721790 doi:10.1016/j.ygcen.2012.06.022 PUBMED: 22750538 |
op_doi |
https://doi.org/10.1016/j.ygcen.2012.06.022 |
container_title |
General and Comparative Endocrinology |
container_volume |
178 |
container_issue |
2 |
container_start_page |
391 |
op_container_end_page |
399 |
_version_ |
1790599060048052224 |