Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea
Many Arctic-breeding waterbirds are thought to bring nutrients for egg production from southern latitudes to allow early breeding. It has proved problematic to quantify the extent of such capital breeding and identify whether nutrients for egg production are brought in from nearby or from afar. Befo...
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ftdryad:oai:v1.datadryad.org:10255/dryad.133951 2023-05-15T13:29:59+02:00 Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea Klaassen, Marcel Hahn, Steffen Korthals, Harry Madsen, Jesper Svalbard Norway Vesterålen Arctic Holocene 2016-12-21T16:56:51Z http://hdl.handle.net/10255/dryad.133951 https://doi.org/10.5061/dryad.5p251 unknown 47;;2016 doi:10.5061/dryad.5p251/1 doi:10.5061/dryad.5p251/2 doi:10.5061/dryad.5p251/3 doi:10.1111/jav.01364 doi:10.5061/dryad.5p251 Klaassen M, Hahn S, Korthals H, Madsen J (2017) Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea. Journal of Avian Biology 48(1): 173-179. 0908-8857 http://hdl.handle.net/10255/dryad.133951 capital breeding income breeding migration Article 2016 ftdryad https://doi.org/10.5061/dryad.5p251 https://doi.org/10.5061/dryad.5p251/1 https://doi.org/10.5061/dryad.5p251/2 https://doi.org/10.5061/dryad.5p251/3 https://doi.org/10.1111/jav.01364 2020-01-01T15:44:36Z Many Arctic-breeding waterbirds are thought to bring nutrients for egg production from southern latitudes to allow early breeding. It has proved problematic to quantify the extent of such capital breeding and identify whether nutrients for egg production are brought in from nearby or from afar. Before reaching their breeding grounds on Svalbard, pink-footed geese Anser brachyrhynchus fly ∼ 1100 km across the Barents Sea from Norway. Using abdominal profile indexing (API) we scored body stores in individually marked geese just prior to migration from the northernmost staging area in Norway to Svalbard, followed by their breeding success on their non-breeding grounds in autumn. In productive breeding years leading to a high (> 13.8%) proportion of juveniles in the autumn population, there was a positive relationship between female API and number of young produced, suggesting that the geese are at least partial capital breeders. Moreover, focusing on the geographic origin of proteins used in egg synthesis and measuring nitrogen stable isotope ratios in pink-footed geese's eggs and food sources in Norway and Svalbard, we identified that capital breeding in this species is ∼ 50% on average but may potentially amount to as much as 100%, notably in females laying early. About 60% of this protein capital is carried in well-developed follicles across the Barents Sea, the remainder likely being stored in muscle tissues. Conditions on the wintering grounds and migratory stopover sites can have profound effects on an individual's fitness but the here presented link between the use of migratory stopover sites and breeding performance is particularly noteworthy. Apparently, some individuals accept the putative costs of carrying body stores over large distances to the breeding grounds. The data also highlights considerable variation in the reliance on capital for breeding, suggesting substantial individual scope to adjust breeding strategy to changing environmental conditions. Article in Journal/Newspaper Anser brachyrhynchus Arctic Barents Sea Svalbard Vesterålen Dryad Digital Repository (Duke University) Arctic Svalbard Barents Sea Norway Vesterålen ENVELOPE(14.939,14.939,68.754,68.754) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
capital breeding income breeding migration |
spellingShingle |
capital breeding income breeding migration Klaassen, Marcel Hahn, Steffen Korthals, Harry Madsen, Jesper Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea |
topic_facet |
capital breeding income breeding migration |
description |
Many Arctic-breeding waterbirds are thought to bring nutrients for egg production from southern latitudes to allow early breeding. It has proved problematic to quantify the extent of such capital breeding and identify whether nutrients for egg production are brought in from nearby or from afar. Before reaching their breeding grounds on Svalbard, pink-footed geese Anser brachyrhynchus fly ∼ 1100 km across the Barents Sea from Norway. Using abdominal profile indexing (API) we scored body stores in individually marked geese just prior to migration from the northernmost staging area in Norway to Svalbard, followed by their breeding success on their non-breeding grounds in autumn. In productive breeding years leading to a high (> 13.8%) proportion of juveniles in the autumn population, there was a positive relationship between female API and number of young produced, suggesting that the geese are at least partial capital breeders. Moreover, focusing on the geographic origin of proteins used in egg synthesis and measuring nitrogen stable isotope ratios in pink-footed geese's eggs and food sources in Norway and Svalbard, we identified that capital breeding in this species is ∼ 50% on average but may potentially amount to as much as 100%, notably in females laying early. About 60% of this protein capital is carried in well-developed follicles across the Barents Sea, the remainder likely being stored in muscle tissues. Conditions on the wintering grounds and migratory stopover sites can have profound effects on an individual's fitness but the here presented link between the use of migratory stopover sites and breeding performance is particularly noteworthy. Apparently, some individuals accept the putative costs of carrying body stores over large distances to the breeding grounds. The data also highlights considerable variation in the reliance on capital for breeding, suggesting substantial individual scope to adjust breeding strategy to changing environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Klaassen, Marcel Hahn, Steffen Korthals, Harry Madsen, Jesper |
author_facet |
Klaassen, Marcel Hahn, Steffen Korthals, Harry Madsen, Jesper |
author_sort |
Klaassen, Marcel |
title |
Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea |
title_short |
Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea |
title_full |
Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea |
title_fullStr |
Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea |
title_full_unstemmed |
Data from: Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea |
title_sort |
data from: eggs brought in from afar: svalbard-breeding pink-footed geese can fly their eggs across the barents sea |
publishDate |
2016 |
url |
http://hdl.handle.net/10255/dryad.133951 https://doi.org/10.5061/dryad.5p251 |
op_coverage |
Svalbard Norway Vesterålen Arctic Holocene |
long_lat |
ENVELOPE(14.939,14.939,68.754,68.754) |
geographic |
Arctic Svalbard Barents Sea Norway Vesterålen |
geographic_facet |
Arctic Svalbard Barents Sea Norway Vesterålen |
genre |
Anser brachyrhynchus Arctic Barents Sea Svalbard Vesterålen |
genre_facet |
Anser brachyrhynchus Arctic Barents Sea Svalbard Vesterålen |
op_relation |
47;;2016 doi:10.5061/dryad.5p251/1 doi:10.5061/dryad.5p251/2 doi:10.5061/dryad.5p251/3 doi:10.1111/jav.01364 doi:10.5061/dryad.5p251 Klaassen M, Hahn S, Korthals H, Madsen J (2017) Eggs brought in from afar: Svalbard-breeding pink-footed geese can fly their eggs across the Barents Sea. Journal of Avian Biology 48(1): 173-179. 0908-8857 http://hdl.handle.net/10255/dryad.133951 |
op_doi |
https://doi.org/10.5061/dryad.5p251 https://doi.org/10.5061/dryad.5p251/1 https://doi.org/10.5061/dryad.5p251/2 https://doi.org/10.5061/dryad.5p251/3 https://doi.org/10.1111/jav.01364 |
_version_ |
1766004652978995200 |