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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ftzenodo:oai:zenodo.org:4962509 2024-09-15T18:02:45+00:00 Data from: Early mortality saves energy: estimating the energetic cost of excess offspring in a seabird Vedder, Oscar Zhang, He Bouwhuis, Sandra 2017-01-23 https://doi.org/10.5061/dryad.6ck7g unknown Zenodo https://doi.org/10.1098/rspb.2016.2724 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.6ck7g oai:zenodo.org:4962509 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode age-specific mortality Brood survival brood reduction offspring survival parent-offspring conflict chick growth 1992-2005 Parental neglect Chick mortality Sterna hirundo life-history evolution info:eu-repo/semantics/other 2017 ftzenodo https://doi.org/10.5061/dryad.6ck7g10.1098/rspb.2016.2724 2024-07-26T16:49:31Z 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. Raw data chick survival and growth (1992-2015) Data on common tern chick survival and mass growth between 1992 and 2015 collected in the Bantersee research colony in Wilhelmshaven, Germany. Other/Unknown Material Common tern Sterna hirundo Zenodo |
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age-specific mortality Brood survival brood reduction offspring survival parent-offspring conflict chick growth 1992-2005 Parental neglect Chick mortality Sterna hirundo life-history evolution |
spellingShingle |
age-specific mortality Brood survival brood reduction offspring survival parent-offspring conflict chick growth 1992-2005 Parental neglect Chick mortality Sterna hirundo 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 |
age-specific mortality Brood survival brood reduction offspring survival parent-offspring conflict chick growth 1992-2005 Parental neglect Chick mortality Sterna hirundo 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. Raw data chick survival and growth (1992-2015) Data on common tern chick survival and mass growth between 1992 and 2015 collected in the Bantersee research colony in Wilhelmshaven, Germany. |
format |
Other/Unknown Material |
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 |
publisher |
Zenodo |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.6ck7g |
genre |
Common tern Sterna hirundo |
genre_facet |
Common tern Sterna hirundo |
op_relation |
https://doi.org/10.1098/rspb.2016.2724 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.6ck7g oai:zenodo.org:4962509 |
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.6ck7g10.1098/rspb.2016.2724 |
_version_ |
1810440168662892544 |