Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer
Studies of locomotor activity in Svalbard reindeer reported the temporary absence of diel rhythms under Arctic photic conditions. However, using Lomb-Scargle periodogram analyses with high statistical power we found diel or circadian rhythmicity throughout the entire year in measures of behaviour, t...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:111838 2023-07-02T03:31:24+02:00 Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer Arnold, Walter Ruf, Thomas Loe, Leif Egil Irvine, R. Justin Ropstad, Erik Veiberg, Vebjørn Albon, Steve D. 2018-09-27T18:24:12.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-o5-zcbi https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:111838 unknown doi:10.5061/dryad.tk5ts47/1 doi:10.5061/dryad.tk5ts47/2 doi:10.5061/dryad.tk5ts47/3 doi:10.5061/dryad.tk5ts47/4 doi:10.5061/dryad.tk5ts47/5 doi:10.1038/s41598-018-32778-4 http://nbn-resolving.org/urn:nbn:nl:ui:13-o5-zcbi doi:10.5061/dryad.tk5ts47 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:111838 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 2018 ftdans https://doi.org/10.5061/dryad.tk5ts47/110.5061/dryad.tk5ts47/210.5061/dryad.tk5ts47/310.5061/dryad.tk5ts47/410.5061/dryad.tk5ts47/510.1038/s41598-018-32778-410.5061/dryad.tk5ts47 2023-06-13T13:32:06Z Studies of locomotor activity in Svalbard reindeer reported the temporary absence of diel rhythms under Arctic photic conditions. However, using Lomb-Scargle periodogram analyses with high statistical power we found diel or circadian rhythmicity throughout the entire year in measures of behaviour, temperature in the rumen and heart rate in free-living Svalbard reindeer. Significant diel rhythmicity was only lacking during some of the 15-day intervals analysed in the less frequently measured heart rate. During Polar Night these rhythms were free-running and attenuated. During continual daylight in summer, rhythms where entrained to 24 hours corresponding with the daily variation in the intensity of solar radiation, but attenuated when continuous daylight coincided with the period of growing forage. Diel rhythmicity was reduced during this short period of peak foraging activity, which coincided with peak heart rate and temperature in the rumen, most likely to facilitate fattening when food is abundant. For the rest of the year, heart rate and temperature showed the most pronounced and long-lasting suppression ever found in ungulates. The profound seasonal changes in foraging, metabolic activity, and power of diel and circadian rhythmicity of Svalbard reindeer can be viewed as adaptations to the extreme living conditions in the High Arctic. Other/Unknown Material Arctic polar night Svalbard svalbard reindeer midnight sun Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Arctic Svalbard |
institution |
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 Arnold, Walter Ruf, Thomas Loe, Leif Egil Irvine, R. Justin Ropstad, Erik Veiberg, Vebjørn Albon, Steve D. Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer |
topic_facet |
Life sciences medicine and health care |
description |
Studies of locomotor activity in Svalbard reindeer reported the temporary absence of diel rhythms under Arctic photic conditions. However, using Lomb-Scargle periodogram analyses with high statistical power we found diel or circadian rhythmicity throughout the entire year in measures of behaviour, temperature in the rumen and heart rate in free-living Svalbard reindeer. Significant diel rhythmicity was only lacking during some of the 15-day intervals analysed in the less frequently measured heart rate. During Polar Night these rhythms were free-running and attenuated. During continual daylight in summer, rhythms where entrained to 24 hours corresponding with the daily variation in the intensity of solar radiation, but attenuated when continuous daylight coincided with the period of growing forage. Diel rhythmicity was reduced during this short period of peak foraging activity, which coincided with peak heart rate and temperature in the rumen, most likely to facilitate fattening when food is abundant. For the rest of the year, heart rate and temperature showed the most pronounced and long-lasting suppression ever found in ungulates. The profound seasonal changes in foraging, metabolic activity, and power of diel and circadian rhythmicity of Svalbard reindeer can be viewed as adaptations to the extreme living conditions in the High Arctic. |
author |
Arnold, Walter Ruf, Thomas Loe, Leif Egil Irvine, R. Justin Ropstad, Erik Veiberg, Vebjørn Albon, Steve D. |
author_facet |
Arnold, Walter Ruf, Thomas Loe, Leif Egil Irvine, R. Justin Ropstad, Erik Veiberg, Vebjørn Albon, Steve D. |
author_sort |
Arnold, Walter |
title |
Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer |
title_short |
Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer |
title_full |
Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer |
title_fullStr |
Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer |
title_full_unstemmed |
Data from: Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer |
title_sort |
data from: circadian rhythmicity persists through the polar night and midnight sun in svalbard reindeer |
publishDate |
2018 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-o5-zcbi https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:111838 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic polar night Svalbard svalbard reindeer midnight sun |
genre_facet |
Arctic polar night Svalbard svalbard reindeer midnight sun |
op_relation |
doi:10.5061/dryad.tk5ts47/1 doi:10.5061/dryad.tk5ts47/2 doi:10.5061/dryad.tk5ts47/3 doi:10.5061/dryad.tk5ts47/4 doi:10.5061/dryad.tk5ts47/5 doi:10.1038/s41598-018-32778-4 http://nbn-resolving.org/urn:nbn:nl:ui:13-o5-zcbi doi:10.5061/dryad.tk5ts47 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:111838 |
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.tk5ts47/110.5061/dryad.tk5ts47/210.5061/dryad.tk5ts47/310.5061/dryad.tk5ts47/410.5061/dryad.tk5ts47/510.1038/s41598-018-32778-410.5061/dryad.tk5ts47 |
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1770270798889615360 |