Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds
Circadian clocks are centrally involved in the regulation of daily behavioural and physiological processes. These clocks are synchronized to the 24 h day by external cues (Zeitgeber), the most important of which is the light–dark cycle. In polar environments, however, the strength of the Zeitgeber i...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:83629 2023-07-02T03:31:30+02:00 Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds Steiger, Silke S. Valcu, Mihai Spoelstra, Kamiel Helm, Barbara Wikelski, Martin Kempenaers, Bart 2013-07-01T19:50:30.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-q5-hy3d https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83629 unknown doi:10.5061/dryad.4g1g0/1 doi:10.1098/rspb.2013.1016 PMID:23782884 http://nbn-resolving.org/urn:nbn:nl:ui:13-q5-hy3d doi:10.5061/dryad.4g1g0 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83629 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2013 ftdans https://doi.org/10.5061/dryad.4g1g0/110.1098/rspb.2013.101610.5061/dryad.4g1g0 2023-06-13T13:09:27Z Circadian clocks are centrally involved in the regulation of daily behavioural and physiological processes. These clocks are synchronized to the 24 h day by external cues (Zeitgeber), the most important of which is the light–dark cycle. In polar environments, however, the strength of the Zeitgeber is greatly reduced around the summer and winter solstices (continuous daylight or continuous darkness). How animals time their behaviour under such conditions has rarely been studied in the wild. Using a radio-telemetry-based system, we investigated daily activity rhythms under continuous daylight in Barrow, Alaska, throughout the breeding season in four bird species that differ in mating system and parental behaviour. We found substantial diversity in daily activity rhythms depending on species, sex and breeding stage. Individuals exhibited either robust, entrained 24 h activity cycles, were continuously active (arrhythmic) or showed ‘free-running’ activity cycles. In semipalmated sandpipers, a shorebird with biparental incubation, we show that the free-running rhythm is synchronized between pair mates. The diversity of diel time-keeping under continuous daylight emphasizes the plasticity of the circadian system, and the importance of the social and life-history context. Our results support the idea that circadian behaviour can be adaptively modified to enable species-specific time-keeping under polar conditions. Other/Unknown Material Arctic Barrow Alaska Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic |
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Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
op_collection_id |
ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Steiger, Silke S. Valcu, Mihai Spoelstra, Kamiel Helm, Barbara Wikelski, Martin Kempenaers, Bart Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds |
topic_facet |
Life sciences medicine and health care |
description |
Circadian clocks are centrally involved in the regulation of daily behavioural and physiological processes. These clocks are synchronized to the 24 h day by external cues (Zeitgeber), the most important of which is the light–dark cycle. In polar environments, however, the strength of the Zeitgeber is greatly reduced around the summer and winter solstices (continuous daylight or continuous darkness). How animals time their behaviour under such conditions has rarely been studied in the wild. Using a radio-telemetry-based system, we investigated daily activity rhythms under continuous daylight in Barrow, Alaska, throughout the breeding season in four bird species that differ in mating system and parental behaviour. We found substantial diversity in daily activity rhythms depending on species, sex and breeding stage. Individuals exhibited either robust, entrained 24 h activity cycles, were continuously active (arrhythmic) or showed ‘free-running’ activity cycles. In semipalmated sandpipers, a shorebird with biparental incubation, we show that the free-running rhythm is synchronized between pair mates. The diversity of diel time-keeping under continuous daylight emphasizes the plasticity of the circadian system, and the importance of the social and life-history context. Our results support the idea that circadian behaviour can be adaptively modified to enable species-specific time-keeping under polar conditions. |
author |
Steiger, Silke S. Valcu, Mihai Spoelstra, Kamiel Helm, Barbara Wikelski, Martin Kempenaers, Bart |
author_facet |
Steiger, Silke S. Valcu, Mihai Spoelstra, Kamiel Helm, Barbara Wikelski, Martin Kempenaers, Bart |
author_sort |
Steiger, Silke S. |
title |
Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds |
title_short |
Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds |
title_full |
Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds |
title_fullStr |
Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds |
title_full_unstemmed |
Data from: When the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds |
title_sort |
data from: when the sun never sets: diverse activity rhythms under continuous daylight in free-living arctic-breeding birds |
publishDate |
2013 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-q5-hy3d https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83629 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Alaska |
genre_facet |
Arctic Barrow Alaska |
op_relation |
doi:10.5061/dryad.4g1g0/1 doi:10.1098/rspb.2013.1016 PMID:23782884 http://nbn-resolving.org/urn:nbn:nl:ui:13-q5-hy3d doi:10.5061/dryad.4g1g0 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:83629 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.4g1g0/110.1098/rspb.2013.101610.5061/dryad.4g1g0 |
_version_ |
1770270882669789184 |