Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird
Offspring are often produced in excess as insurance against stochastic events or unpredictable resources. This strategy may result in high early-life mortality, yet age-specific mortality before offspring independence and its associated costs have rarely been quantified. In this study, we modelled a...
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ftdryad:oai:v1.datadryad.org:10255/dryad.135055 2023-05-15T15:56:20+02:00 Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird Vedder, Oscar Zhang, He Bouwhuis, Sandra Wilhelmshaven Germany Europe 1992-2005 2017-01-23T16:24:59Z http://hdl.handle.net/10255/dryad.135055 https://doi.org/10.5061/dryad.6ck7g unknown doi:10.5061/dryad.6ck7g/1 doi:10.1098/rspb.2016.2724 doi:10.5061/dryad.6ck7g Vedder O, Zhang H, Bouwhuis S (2017) Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird. Proceedings of the Royal Society B 284(1849): 20162724. 0962-8452 http://hdl.handle.net/10255/dryad.135055 Brood reduction Brood survival Kin selection Parental neglect Parent-offspring conflict Offspring survival Age-specific mortality Life-history evolution Article 2017 ftdryad https://doi.org/10.5061/dryad.6ck7g https://doi.org/10.5061/dryad.6ck7g/1 https://doi.org/10.1098/rspb.2016.2724 2020-01-01T15:45:10Z Offspring are often produced in excess as insurance against stochastic events or unpredictable resources. This strategy may result in high early-life mortality, yet age-specific mortality before offspring independence and its associated costs have rarely been quantified. In this study, we modelled age-specific survival from hatching to fledging using 24 years of data on hatching order (HO), growth and age of mortality of more than 15 000 common tern (Sterna hirundo) chicks. We found that mortality peaked directly after hatching, after which it declined rapidly. Mortality hazard was best described with the Gompertz function, and was higher with later HO, mainly due to differences in baseline mortality hazard, rather than age-dependent mortality. Based on allometric mass–metabolism relationships and detailed growth curves of starving chicks, we estimated that the average metabolizable energy intake of non-fledged chicks was only 8.7% of the metabolizable energy intake of successful chicks during the nestling phase. Although 54% of hatchlings did not fledge, our estimates suggest them to have consumed only 9.3% of the total energy consumption of all hatched chicks in the population before fledging. We suggest that rapid mortality of excess offspring is part of an adaptive brood reduction strategy to the benefit of the parents. Article in Journal/Newspaper Common tern Sterna hirundo Dryad Digital Repository (Duke University) |
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Open Polar |
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Dryad Digital Repository (Duke University) |
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language |
unknown |
topic |
Brood reduction Brood survival Kin selection Parental neglect Parent-offspring conflict Offspring survival Age-specific mortality Life-history evolution |
spellingShingle |
Brood reduction Brood survival Kin selection Parental neglect Parent-offspring conflict Offspring survival Age-specific mortality Life-history evolution Vedder, Oscar Zhang, He Bouwhuis, Sandra Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird |
topic_facet |
Brood reduction Brood survival Kin selection Parental neglect Parent-offspring conflict Offspring survival Age-specific mortality Life-history evolution |
description |
Offspring are often produced in excess as insurance against stochastic events or unpredictable resources. This strategy may result in high early-life mortality, yet age-specific mortality before offspring independence and its associated costs have rarely been quantified. In this study, we modelled age-specific survival from hatching to fledging using 24 years of data on hatching order (HO), growth and age of mortality of more than 15 000 common tern (Sterna hirundo) chicks. We found that mortality peaked directly after hatching, after which it declined rapidly. Mortality hazard was best described with the Gompertz function, and was higher with later HO, mainly due to differences in baseline mortality hazard, rather than age-dependent mortality. Based on allometric mass–metabolism relationships and detailed growth curves of starving chicks, we estimated that the average metabolizable energy intake of non-fledged chicks was only 8.7% of the metabolizable energy intake of successful chicks during the nestling phase. Although 54% of hatchlings did not fledge, our estimates suggest them to have consumed only 9.3% of the total energy consumption of all hatched chicks in the population before fledging. We suggest that rapid mortality of excess offspring is part of an adaptive brood reduction strategy to the benefit of the parents. |
format |
Article in Journal/Newspaper |
author |
Vedder, Oscar Zhang, He Bouwhuis, Sandra |
author_facet |
Vedder, Oscar Zhang, He Bouwhuis, Sandra |
author_sort |
Vedder, Oscar |
title |
Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird |
title_short |
Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird |
title_full |
Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird |
title_fullStr |
Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird |
title_full_unstemmed |
Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird |
title_sort |
data from: early mortality saves energy: estimating the energetic cost of excess offspring in a seabird |
publishDate |
2017 |
url |
http://hdl.handle.net/10255/dryad.135055 https://doi.org/10.5061/dryad.6ck7g |
op_coverage |
Wilhelmshaven Germany Europe 1992-2005 |
genre |
Common tern Sterna hirundo |
genre_facet |
Common tern Sterna hirundo |
op_relation |
doi:10.5061/dryad.6ck7g/1 doi:10.1098/rspb.2016.2724 doi:10.5061/dryad.6ck7g Vedder O, Zhang H, Bouwhuis S (2017) Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird. Proceedings of the Royal Society B 284(1849): 20162724. 0962-8452 http://hdl.handle.net/10255/dryad.135055 |
op_doi |
https://doi.org/10.5061/dryad.6ck7g https://doi.org/10.5061/dryad.6ck7g/1 https://doi.org/10.1098/rspb.2016.2724 |
_version_ |
1766391775330566144 |