Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders
Parental care is regulated by multiple endocrine mechanisms. Among these hormones, prolactin (PRL) is involved in the expression of parental behaviors. Despite the consensus that PRL mediates variation in parental effort with age and body condition, its role in the adjustment of parental effort to f...
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Format: | Article in Journal/Newspaper |
Language: | English |
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Academic Press
2024
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Online Access: | http://hdl.handle.net/10138/585298 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/585298 |
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openpolar |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
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ftunivhelsihelda |
language |
English |
topic |
Parental care Parental effort Predation risk Prolactin Reproduction Somateria mollissima Ecology evolutionary biology |
spellingShingle |
Parental care Parental effort Predation risk Prolactin Reproduction Somateria mollissima Ecology evolutionary biology Mohring, Bertille Öst, Markus Jaatinen, Kim Parenteau, Charline Pallud, Marie Angelier, Frédéric Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders |
topic_facet |
Parental care Parental effort Predation risk Prolactin Reproduction Somateria mollissima Ecology evolutionary biology |
description |
Parental care is regulated by multiple endocrine mechanisms. Among these hormones, prolactin (PRL) is involved in the expression of parental behaviors. Despite the consensus that PRL mediates variation in parental effort with age and body condition, its role in the adjustment of parental effort to fluctuating environmental conditions, including changing predation pressure, still awaits further investigation. To shed light on this knowledge gap, we relied on a long-term monitoring of female common eiders Somateria mollissima (n = 1277 breeding attempts, 2012–2022) incubating under fluctuating predation risk to investigate the link between baseline PRL levels and female minimum age, body condition, clutch size, environmental parameters (predation pressure, climate, nest microhabitat) and hatching success. We predicted that PRL would be higher in older females, those in better condition or incubating larger clutches. We also predicted that females would reduce parental effort when nesting under challenging environmental conditions (high predation pressure or poor climatic conditions), translated into reduced baseline PRL levels. We also explored how variation in PRL levels, female characteristics and environmental parameters were related to hatching success. Following our predictions, PRL levels were positively associated with body condition and female age (before showing a senescent decline in the oldest breeders). However, we did not observe any population-level or individual-level reduction in PRL levels in response to increasing predation pressure. Population-level baseline PRL levels instead increased over the study period, coincident with rising predation threat, but also increasing female body condition and age. While we did not provide evidence for a direct association between baseline PRL levels and predation risk, our results support the idea that elevated baseline PRL levels promote hatching success under internal constraints (in young, inexperienced, breeders or those incubating a large clutch) or ... |
author2 |
Tvärminne Zoological Station |
format |
Article in Journal/Newspaper |
author |
Mohring, Bertille Öst, Markus Jaatinen, Kim Parenteau, Charline Pallud, Marie Angelier, Frédéric |
author_facet |
Mohring, Bertille Öst, Markus Jaatinen, Kim Parenteau, Charline Pallud, Marie Angelier, Frédéric |
author_sort |
Mohring, Bertille |
title |
Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders |
title_short |
Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders |
title_full |
Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders |
title_fullStr |
Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders |
title_full_unstemmed |
Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders |
title_sort |
parenting in a changing environment : a long-term study of prolactin, parental effort and reproductive success in common eiders |
publisher |
Academic Press |
publishDate |
2024 |
url |
http://hdl.handle.net/10138/585298 |
genre |
Somateria mollissima |
genre_facet |
Somateria mollissima |
op_relation |
10.1016/j.ygcen.2024.114574 We thank Tv\u00E4rminne Zoological Station for providing facilities and allowing access to monitoring islands. We are grateful to the field assistants who participated in the long-term monitoring, with special thanks to Ben Steele, Heikki Eriksson, Niilo Aro and Ida Hermansson. We acknowledge the Finnish Meteorological Institute (FMI) for providing the necessary data openly available for the research. We thank HALIAS observers and Aleksi Lehikoinen for providing the eagle index. Animal research was reviewed and approved by the Finnish Project Authorization Board of the Regional Administrative Agency for Southern Finland (permit numbers ESAVI/1697/04.10.03/2012; ESAVI/2831/04.10.07/2015; ESAVI/4053/2018; ESAVI/10022/2021) and complied with laws of Finland and the specific regulations of Tv\u00E4rminne Zoological Station. This work was supported by the Swedish Cultural Foundation in Finland [grant numbers 17/3317 , 16/1476 , 15/3296 , 14/2657 , 13/2654 , 138139 , 149014 , 158026 , 168333 , 177733 and 188437 to M\u00D6]; the Academy of Finland [grant number 266208 to KJ and grant number 128039 to M\u00D6]; the Ministry of Agriculture and Forestry of Finland [grants to KJ through the Nature and Game Management Trust Finland]; the Sophie von Julins Stiftelse [grants to KJ through the Nature and Game Management Trust Finland]; and the French CNRS [ grants to FA]. Mohring , B , Öst , M , Jaatinen , K , Parenteau , C , Pallud , M & Angelier , F 2024 , ' Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders ' , General and Comparative Endocrinology , vol. 357 , 114574 . https://doi.org/10.1016/j.ygcen.2024.114574 http://hdl.handle.net/10138/585298 676d62c4-ac25-421c-b9d0-3e1cc64cbc57 38936675 85198539194 001271933700001 |
op_rights |
cc_by info:eu-repo/semantics/openAccess openAccess |
_version_ |
1810479197620011008 |
spelling |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/585298 2024-09-15T18:36:00+00:00 Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders Mohring, Bertille Öst, Markus Jaatinen, Kim Parenteau, Charline Pallud, Marie Angelier, Frédéric Tvärminne Zoological Station 2024-09-03T09:50:04Z application/pdf http://hdl.handle.net/10138/585298 eng eng Academic Press 10.1016/j.ygcen.2024.114574 We thank Tv\u00E4rminne Zoological Station for providing facilities and allowing access to monitoring islands. We are grateful to the field assistants who participated in the long-term monitoring, with special thanks to Ben Steele, Heikki Eriksson, Niilo Aro and Ida Hermansson. We acknowledge the Finnish Meteorological Institute (FMI) for providing the necessary data openly available for the research. We thank HALIAS observers and Aleksi Lehikoinen for providing the eagle index. Animal research was reviewed and approved by the Finnish Project Authorization Board of the Regional Administrative Agency for Southern Finland (permit numbers ESAVI/1697/04.10.03/2012; ESAVI/2831/04.10.07/2015; ESAVI/4053/2018; ESAVI/10022/2021) and complied with laws of Finland and the specific regulations of Tv\u00E4rminne Zoological Station. This work was supported by the Swedish Cultural Foundation in Finland [grant numbers 17/3317 , 16/1476 , 15/3296 , 14/2657 , 13/2654 , 138139 , 149014 , 158026 , 168333 , 177733 and 188437 to M\u00D6]; the Academy of Finland [grant number 266208 to KJ and grant number 128039 to M\u00D6]; the Ministry of Agriculture and Forestry of Finland [grants to KJ through the Nature and Game Management Trust Finland]; the Sophie von Julins Stiftelse [grants to KJ through the Nature and Game Management Trust Finland]; and the French CNRS [ grants to FA]. Mohring , B , Öst , M , Jaatinen , K , Parenteau , C , Pallud , M & Angelier , F 2024 , ' Parenting in a changing environment : A long-term study of prolactin, parental effort and reproductive success in common eiders ' , General and Comparative Endocrinology , vol. 357 , 114574 . https://doi.org/10.1016/j.ygcen.2024.114574 http://hdl.handle.net/10138/585298 676d62c4-ac25-421c-b9d0-3e1cc64cbc57 38936675 85198539194 001271933700001 cc_by info:eu-repo/semantics/openAccess openAccess Parental care Parental effort Predation risk Prolactin Reproduction Somateria mollissima Ecology evolutionary biology Article publishedVersion 2024 ftunivhelsihelda 2024-09-05T01:01:30Z Parental care is regulated by multiple endocrine mechanisms. Among these hormones, prolactin (PRL) is involved in the expression of parental behaviors. Despite the consensus that PRL mediates variation in parental effort with age and body condition, its role in the adjustment of parental effort to fluctuating environmental conditions, including changing predation pressure, still awaits further investigation. To shed light on this knowledge gap, we relied on a long-term monitoring of female common eiders Somateria mollissima (n = 1277 breeding attempts, 2012–2022) incubating under fluctuating predation risk to investigate the link between baseline PRL levels and female minimum age, body condition, clutch size, environmental parameters (predation pressure, climate, nest microhabitat) and hatching success. We predicted that PRL would be higher in older females, those in better condition or incubating larger clutches. We also predicted that females would reduce parental effort when nesting under challenging environmental conditions (high predation pressure or poor climatic conditions), translated into reduced baseline PRL levels. We also explored how variation in PRL levels, female characteristics and environmental parameters were related to hatching success. Following our predictions, PRL levels were positively associated with body condition and female age (before showing a senescent decline in the oldest breeders). However, we did not observe any population-level or individual-level reduction in PRL levels in response to increasing predation pressure. Population-level baseline PRL levels instead increased over the study period, coincident with rising predation threat, but also increasing female body condition and age. While we did not provide evidence for a direct association between baseline PRL levels and predation risk, our results support the idea that elevated baseline PRL levels promote hatching success under internal constraints (in young, inexperienced, breeders or those incubating a large clutch) or ... Article in Journal/Newspaper Somateria mollissima HELDA – University of Helsinki Open Repository |