Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle"
The existence and persistence of rhythmicity in animal activity during phases of environmental change is of interest in ecology, evolution and chronobiology. A wide diversity of biological rhythms in response to exogenous conditions and internal stimuli have been uncovered, especially for polar vert...
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ftdatacite:10.6084/m9.figshare.c.5179240 2023-05-15T14:59:52+02:00 Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle" Beest, Floris M. Van Beumer, Larissa Teresa Chimienti, Marianna Desforges, Jean-Pierre Huffeldt, Nicholas Per Pedersen, Stine H. Schmidt, Niels Martin 2020 https://dx.doi.org/10.6084/m9.figshare.c.5179240 https://rs.figshare.com/collections/Supplementary_material_from_Environmental_conditions_alter_behavioural_organization_and_rhythmicity_of_a_large_Arctic_ruminant_across_the_annual_cycle_/5179240 unknown The Royal Society https://dx.doi.org/10.1098/rsos.201614 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Ecology FOS Biological sciences 60801 Animal Behaviour Collection article 2020 ftdatacite https://doi.org/10.6084/m9.figshare.c.5179240 https://doi.org/10.1098/rsos.201614 2021-11-05T12:55:41Z The existence and persistence of rhythmicity in animal activity during phases of environmental change is of interest in ecology, evolution and chronobiology. A wide diversity of biological rhythms in response to exogenous conditions and internal stimuli have been uncovered, especially for polar vertebrates. However, empirical data supporting circadian organization in behaviour of large ruminating herbivores remains inconclusive. Using year-round tracking data of the largest Arctic ruminant, the muskox ( Ovibos moschatus ), we modelled rhythmicity as a function of behaviour and environmental conditions. Behavioural states were classified based on patterns in hourly movements, and incorporated within a periodicity analyses framework. Although circadian rhythmicity in muskox behaviour was detected throughout the year, ultradian rhythmicity was most prevalent, especially when muskoxen were foraging and resting in mid-winter (continuous darkness). However, when combining circadian and ultradian rhythmicity together, the probability of behavioural rhythmicity declined with increasing photoperiod until largely disrupted in mid-summer (continuous light). Individuals that remained behaviourally rhythmic during mid-summer foraged in areas with lower plant productivity (NDVI) than individuals with arrhythmic behaviour. Based on our study, we conclude that muskoxen may use an interval timer to schedule their behavioural cycles when forage resources are low, but that the importance and duration of this timer are reduced once environmental conditions allow energetic reserves to be replenished ad libitum. We argue that alimentary function and metabolic requirements are critical determinants of biological rhythmicity in muskoxen, which likely applies to ruminating herbivores in general. Article in Journal/Newspaper Arctic muskox ovibos moschatus DataCite Metadata Store (German National Library of Science and Technology) Arctic |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Ecology FOS Biological sciences 60801 Animal Behaviour |
spellingShingle |
Ecology FOS Biological sciences 60801 Animal Behaviour Beest, Floris M. Van Beumer, Larissa Teresa Chimienti, Marianna Desforges, Jean-Pierre Huffeldt, Nicholas Per Pedersen, Stine H. Schmidt, Niels Martin Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle" |
topic_facet |
Ecology FOS Biological sciences 60801 Animal Behaviour |
description |
The existence and persistence of rhythmicity in animal activity during phases of environmental change is of interest in ecology, evolution and chronobiology. A wide diversity of biological rhythms in response to exogenous conditions and internal stimuli have been uncovered, especially for polar vertebrates. However, empirical data supporting circadian organization in behaviour of large ruminating herbivores remains inconclusive. Using year-round tracking data of the largest Arctic ruminant, the muskox ( Ovibos moschatus ), we modelled rhythmicity as a function of behaviour and environmental conditions. Behavioural states were classified based on patterns in hourly movements, and incorporated within a periodicity analyses framework. Although circadian rhythmicity in muskox behaviour was detected throughout the year, ultradian rhythmicity was most prevalent, especially when muskoxen were foraging and resting in mid-winter (continuous darkness). However, when combining circadian and ultradian rhythmicity together, the probability of behavioural rhythmicity declined with increasing photoperiod until largely disrupted in mid-summer (continuous light). Individuals that remained behaviourally rhythmic during mid-summer foraged in areas with lower plant productivity (NDVI) than individuals with arrhythmic behaviour. Based on our study, we conclude that muskoxen may use an interval timer to schedule their behavioural cycles when forage resources are low, but that the importance and duration of this timer are reduced once environmental conditions allow energetic reserves to be replenished ad libitum. We argue that alimentary function and metabolic requirements are critical determinants of biological rhythmicity in muskoxen, which likely applies to ruminating herbivores in general. |
format |
Article in Journal/Newspaper |
author |
Beest, Floris M. Van Beumer, Larissa Teresa Chimienti, Marianna Desforges, Jean-Pierre Huffeldt, Nicholas Per Pedersen, Stine H. Schmidt, Niels Martin |
author_facet |
Beest, Floris M. Van Beumer, Larissa Teresa Chimienti, Marianna Desforges, Jean-Pierre Huffeldt, Nicholas Per Pedersen, Stine H. Schmidt, Niels Martin |
author_sort |
Beest, Floris M. Van |
title |
Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle" |
title_short |
Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle" |
title_full |
Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle" |
title_fullStr |
Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle" |
title_full_unstemmed |
Supplementary material from "Environmental conditions alter behavioural organization and rhythmicity of a large Arctic ruminant across the annual cycle" |
title_sort |
supplementary material from "environmental conditions alter behavioural organization and rhythmicity of a large arctic ruminant across the annual cycle" |
publisher |
The Royal Society |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.5179240 https://rs.figshare.com/collections/Supplementary_material_from_Environmental_conditions_alter_behavioural_organization_and_rhythmicity_of_a_large_Arctic_ruminant_across_the_annual_cycle_/5179240 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic muskox ovibos moschatus |
genre_facet |
Arctic muskox ovibos moschatus |
op_relation |
https://dx.doi.org/10.1098/rsos.201614 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.5179240 https://doi.org/10.1098/rsos.201614 |
_version_ |
1766331992824086528 |