Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck
To invest in energetically demanding life history stages, individuals require a substantial amount of resources. Physiological traits, particularly those related to energetics, can be useful for examining variation in life history decisions and trade-offs because they result from individual response...
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ftzenodo:oai:zenodo.org:4998837 2024-09-15T18:02:41+00:00 Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck Hennin, Holly Legagneux, Pierre Gilchrist, Hugh Bêty, Joël McMurtry, John Love, Oliver P. 2019-12-12 https://doi.org/10.5061/dryad.283n1c6 unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.283n1c6 oai:zenodo.org:4998837 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Somateria mollissima plasma mammalian leptin analogue common eider energetic demand Leptin reproductive success info:eu-repo/semantics/other 2019 ftzenodo https://doi.org/10.5061/dryad.283n1c6 2024-07-25T13:52:05Z To invest in energetically demanding life history stages, individuals require a substantial amount of resources. Physiological traits, particularly those related to energetics, can be useful for examining variation in life history decisions and trade-offs because they result from individual responses to environmental variation. Leptin is a protein hormone found in mammals that is proportional to the amount of endogenous fat stores within an individual. Recently, researchers have confirmed that a mammalian leptin analogue (MLA), based on the mammalian sequence of leptin, is present with associated receptors and proteins in avian species, with an inhibitory effect on foraging and body mass gain at high circulating levels. While MLA has been both quantified and manipulated in avian species, little is currently known regarding whether plasma MLA in wild-living species and individuals is associated with key reproductive decisions. We quantified plasma MLA in wild, Arctic-nesting female common eiders (Somateria mollissima) at arrival on the breeding grounds and followed them to determine subsequent breeding propensity, and reproductive phenology, investment, and success. Common eiders are capital-income breeding birds that require the accumulation of substantial fat stores to initiate laying and successfully complete incubation. We found that females with lower plasma MLA initiated breeding earlier and in a shorter period of time. However, we found no links between plasma MLA levels and breeding propensity, clutch size or reproductive success. Although little is still known about plasma MLA, based on the current study and due to its role in influencing foraging behaviours and condition gain, it appears to be closely linked to reproductive timing and is therefore likely to underlie trade-offs surrounding life history decisions. Plasma mammalian leptin analogue in Arctic-nesting common eider females These data were collected in the field from common eiders at Southampton Island, Nunavut, Canada from 2006-2007. These ... Other/Unknown Material Common Eider Nunavut Somateria mollissima Southampton Island Zenodo |
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Somateria mollissima plasma mammalian leptin analogue common eider energetic demand Leptin reproductive success |
spellingShingle |
Somateria mollissima plasma mammalian leptin analogue common eider energetic demand Leptin reproductive success Hennin, Holly Legagneux, Pierre Gilchrist, Hugh Bêty, Joël McMurtry, John Love, Oliver P. Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck |
topic_facet |
Somateria mollissima plasma mammalian leptin analogue common eider energetic demand Leptin reproductive success |
description |
To invest in energetically demanding life history stages, individuals require a substantial amount of resources. Physiological traits, particularly those related to energetics, can be useful for examining variation in life history decisions and trade-offs because they result from individual responses to environmental variation. Leptin is a protein hormone found in mammals that is proportional to the amount of endogenous fat stores within an individual. Recently, researchers have confirmed that a mammalian leptin analogue (MLA), based on the mammalian sequence of leptin, is present with associated receptors and proteins in avian species, with an inhibitory effect on foraging and body mass gain at high circulating levels. While MLA has been both quantified and manipulated in avian species, little is currently known regarding whether plasma MLA in wild-living species and individuals is associated with key reproductive decisions. We quantified plasma MLA in wild, Arctic-nesting female common eiders (Somateria mollissima) at arrival on the breeding grounds and followed them to determine subsequent breeding propensity, and reproductive phenology, investment, and success. Common eiders are capital-income breeding birds that require the accumulation of substantial fat stores to initiate laying and successfully complete incubation. We found that females with lower plasma MLA initiated breeding earlier and in a shorter period of time. However, we found no links between plasma MLA levels and breeding propensity, clutch size or reproductive success. Although little is still known about plasma MLA, based on the current study and due to its role in influencing foraging behaviours and condition gain, it appears to be closely linked to reproductive timing and is therefore likely to underlie trade-offs surrounding life history decisions. Plasma mammalian leptin analogue in Arctic-nesting common eider females These data were collected in the field from common eiders at Southampton Island, Nunavut, Canada from 2006-2007. These ... |
format |
Other/Unknown Material |
author |
Hennin, Holly Legagneux, Pierre Gilchrist, Hugh Bêty, Joël McMurtry, John Love, Oliver P. |
author_facet |
Hennin, Holly Legagneux, Pierre Gilchrist, Hugh Bêty, Joël McMurtry, John Love, Oliver P. |
author_sort |
Hennin, Holly |
title |
Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck |
title_short |
Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck |
title_full |
Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck |
title_fullStr |
Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck |
title_full_unstemmed |
Data from: Plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck |
title_sort |
data from: plasma mammalian leptin analogue predicts reproductive phenology, but not reproductive output in a capital-income breeding seaduck |
publisher |
Zenodo |
publishDate |
2019 |
url |
https://doi.org/10.5061/dryad.283n1c6 |
genre |
Common Eider Nunavut Somateria mollissima Southampton Island |
genre_facet |
Common Eider Nunavut Somateria mollissima Southampton Island |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.283n1c6 oai:zenodo.org:4998837 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.283n1c6 |
_version_ |
1810440114145329152 |