How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris)
Studies with humans and some other animal species have shown that sleep is compromised when the presence of external factors such as light, sound, and temperature surpass normal levels. This study investigated the effects of these environmental conditions on 13 kennelled laboratory dogs, assessing w...
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Online Access: | http://usir.salford.ac.uk/id/eprint/64153/ https://doi.org/10.1016/j.beproc.2022.104662 |
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ftunivsalford:oai:usir.salford.ac.uk:64153 2023-05-15T15:50:52+02:00 How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) Schork, I Manzo, I Beiral De Oliveira, M Costa, F Palme, R Young, R de Azevedo, C 2022-05-27 http://usir.salford.ac.uk/id/eprint/64153/ https://doi.org/10.1016/j.beproc.2022.104662 unknown Elsevier Schork, I, Manzo, I, Beiral De Oliveira, M, Costa, F, Palme, R, Young, R and de Azevedo, C 2022, 'How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris)' , Behavioural Processes, 199 , p. 104662. doi:10.1016/j.beproc.2022.104662 Article NonPeerReviewed 2022 ftunivsalford https://doi.org/10.1016/j.beproc.2022.104662 2022-09-08T23:01:41Z Studies with humans and some other animal species have shown that sleep is compromised when the presence of external factors such as light, sound, and temperature surpass normal levels. This study investigated the effects of these environmental conditions on 13 kennelled laboratory dogs, assessing whether each variable interfered with their sleep behaviour and/or increased stress responses, which could further compromise sleep quality. The behaviour of dogs was video recorded for eight months. Diurnal and nocturnal behaviour were recorded, along with naturally occurring levels of temperature, light and sound in the dogs' kennel environment. Faecal cortisol metabolites (FCM), from samples collected every morning, were used to monitor the dogs' adrenocortical activity. GLMM models and non-parametric tests were conducted to evaluate the relationship between sleeping patterns, environmental variables, and stress on the studied dogs. Nocturnal sleep decreased in response to increases in temperature and in day light duration. No effects of sound and FCM levels on dogs' sleep were observed. However, diurnal sleep was affected by sound and FCM levels, decreasing when both factors increased. Additionally, noisier days increased stress responses, especially in male dogs. Increased FCM levels were associated with changes in the diurnal behaviour of dogs; for example, decreased activity. The decrease in daily activities and increased physiological stress responses could be associated with maladaptation to the environment, which could indicate poor welfare. Our study suggests that mitigating the impact of environmental conditions in the kennels could improve sleep quality and the overall quality of life of the dogs. [Abstract copyright: Copyright © 2022 Elsevier B.V. All rights reserved.] Article in Journal/Newspaper Canis lupus University of Salford Institutional Repository Behavioural Processes 199 104662 |
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Studies with humans and some other animal species have shown that sleep is compromised when the presence of external factors such as light, sound, and temperature surpass normal levels. This study investigated the effects of these environmental conditions on 13 kennelled laboratory dogs, assessing whether each variable interfered with their sleep behaviour and/or increased stress responses, which could further compromise sleep quality. The behaviour of dogs was video recorded for eight months. Diurnal and nocturnal behaviour were recorded, along with naturally occurring levels of temperature, light and sound in the dogs' kennel environment. Faecal cortisol metabolites (FCM), from samples collected every morning, were used to monitor the dogs' adrenocortical activity. GLMM models and non-parametric tests were conducted to evaluate the relationship between sleeping patterns, environmental variables, and stress on the studied dogs. Nocturnal sleep decreased in response to increases in temperature and in day light duration. No effects of sound and FCM levels on dogs' sleep were observed. However, diurnal sleep was affected by sound and FCM levels, decreasing when both factors increased. Additionally, noisier days increased stress responses, especially in male dogs. Increased FCM levels were associated with changes in the diurnal behaviour of dogs; for example, decreased activity. The decrease in daily activities and increased physiological stress responses could be associated with maladaptation to the environment, which could indicate poor welfare. Our study suggests that mitigating the impact of environmental conditions in the kennels could improve sleep quality and the overall quality of life of the dogs. [Abstract copyright: Copyright © 2022 Elsevier B.V. All rights reserved.] |
format |
Article in Journal/Newspaper |
author |
Schork, I Manzo, I Beiral De Oliveira, M Costa, F Palme, R Young, R de Azevedo, C |
spellingShingle |
Schork, I Manzo, I Beiral De Oliveira, M Costa, F Palme, R Young, R de Azevedo, C How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) |
author_facet |
Schork, I Manzo, I Beiral De Oliveira, M Costa, F Palme, R Young, R de Azevedo, C |
author_sort |
Schork, I |
title |
How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) |
title_short |
How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) |
title_full |
How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) |
title_fullStr |
How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) |
title_full_unstemmed |
How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris) |
title_sort |
how environmental conditions affect sleep? an investigation in domestic dogs (canis lupus familiaris) |
publisher |
Elsevier |
publishDate |
2022 |
url |
http://usir.salford.ac.uk/id/eprint/64153/ https://doi.org/10.1016/j.beproc.2022.104662 |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_relation |
Schork, I, Manzo, I, Beiral De Oliveira, M, Costa, F, Palme, R, Young, R and de Azevedo, C 2022, 'How environmental conditions affect sleep? An investigation in domestic dogs (Canis lupus familiaris)' , Behavioural Processes, 199 , p. 104662. doi:10.1016/j.beproc.2022.104662 |
op_doi |
https://doi.org/10.1016/j.beproc.2022.104662 |
container_title |
Behavioural Processes |
container_volume |
199 |
container_start_page |
104662 |
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1766385891365879808 |