THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE
The timing of life-cycle events crucially influences fitness, particularly in migratory birds, which visit chains of sites with varying seasonality. Here, we used a proportional hazards model to identify local environmental factors, which a long-distance migrant, the Pink-footed Goose (Anser brachyr...
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ftdatacite:10.6084/m9.figshare.c.3300446 2023-05-15T13:29:56+02:00 THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE Bauer, Silke Gienapp, Phillip Madsen, Jesper 2016 https://dx.doi.org/10.6084/m9.figshare.c.3300446 https://figshare.com/collections/THE_RELEVANCE_OF_ENVIRONMENTAL_CONDITIONS_FOR_DEPARTURE_DECISION_CHANGES_EN_ROUTE_IN_MIGRATING_GEESE/3300446 unknown Figshare https://dx.doi.org/10.1890/07-1101.1 CC-BY http://creativecommons.org/licenses/by/3.0/us CC-BY Environmental Science Ecology FOS Biological sciences Collection article 2016 ftdatacite https://doi.org/10.6084/m9.figshare.c.3300446 https://doi.org/10.1890/07-1101.1 2021-11-05T12:55:41Z The timing of life-cycle events crucially influences fitness, particularly in migratory birds, which visit chains of sites with varying seasonality. Here, we used a proportional hazards model to identify local environmental factors, which a long-distance migrant, the Pink-footed Goose (Anser brachyrhynchus), uses for departure decisions on multiple sites along its spring flyway from Denmark via Norway to Svalbard. Our results not only identified day length, local accumulated temperature, and their interaction as likely candidates, but also (more importantly) showed for the first time that their relevance changes en route. The results suggest that the birds switch on a “migratory program” in their wintering grounds, with day length providing general information on time of the year and integrated temperatures providing information on larger scale climate trends. Thereafter, on the stopover sites, local accumulated temperatures allow the geese to infer information on the advancement of spring, which is then used to adjust the speed of progressing northward. Article in Journal/Newspaper Anser brachyrhynchus Pink-footed Goose Svalbard DataCite Metadata Store (German National Library of Science and Technology) Norway Svalbard |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Environmental Science Ecology FOS Biological sciences |
spellingShingle |
Environmental Science Ecology FOS Biological sciences Bauer, Silke Gienapp, Phillip Madsen, Jesper THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE |
topic_facet |
Environmental Science Ecology FOS Biological sciences |
description |
The timing of life-cycle events crucially influences fitness, particularly in migratory birds, which visit chains of sites with varying seasonality. Here, we used a proportional hazards model to identify local environmental factors, which a long-distance migrant, the Pink-footed Goose (Anser brachyrhynchus), uses for departure decisions on multiple sites along its spring flyway from Denmark via Norway to Svalbard. Our results not only identified day length, local accumulated temperature, and their interaction as likely candidates, but also (more importantly) showed for the first time that their relevance changes en route. The results suggest that the birds switch on a “migratory program” in their wintering grounds, with day length providing general information on time of the year and integrated temperatures providing information on larger scale climate trends. Thereafter, on the stopover sites, local accumulated temperatures allow the geese to infer information on the advancement of spring, which is then used to adjust the speed of progressing northward. |
format |
Article in Journal/Newspaper |
author |
Bauer, Silke Gienapp, Phillip Madsen, Jesper |
author_facet |
Bauer, Silke Gienapp, Phillip Madsen, Jesper |
author_sort |
Bauer, Silke |
title |
THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE |
title_short |
THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE |
title_full |
THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE |
title_fullStr |
THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE |
title_full_unstemmed |
THE RELEVANCE OF ENVIRONMENTAL CONDITIONS FOR DEPARTURE DECISION CHANGES EN ROUTE IN MIGRATING GEESE |
title_sort |
relevance of environmental conditions for departure decision changes en route in migrating geese |
publisher |
Figshare |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3300446 https://figshare.com/collections/THE_RELEVANCE_OF_ENVIRONMENTAL_CONDITIONS_FOR_DEPARTURE_DECISION_CHANGES_EN_ROUTE_IN_MIGRATING_GEESE/3300446 |
geographic |
Norway Svalbard |
geographic_facet |
Norway Svalbard |
genre |
Anser brachyrhynchus Pink-footed Goose Svalbard |
genre_facet |
Anser brachyrhynchus Pink-footed Goose Svalbard |
op_relation |
https://dx.doi.org/10.1890/07-1101.1 |
op_rights |
CC-BY http://creativecommons.org/licenses/by/3.0/us |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3300446 https://doi.org/10.1890/07-1101.1 |
_version_ |
1766004408587386880 |