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Energy stores, oxidative balance and sleep in migratory Garden Warblers (Sylvia borin) and Whitethroats (Sylvia communis) at a spring stopover site

Ferretti, Andrea and McWilliams, Scott R. and Rattenborg, Niels C. and Maggini, Ivan and Cardinale, Massimiliano and Fusani, Leonida (2020). Energy stores, oxidative balance and sleep in migratory Garden Warblers (Sylvia borin) and Whitethroats (Sylvia communis) at a spring stopover site. Integrative Organismal Biology. 2 , obaa010 , 1-15
[Journal article]

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Abstract

Little is known about how songbirds modulate sleep during migratory periods. Due to the alternation of nocturnal endurance flights and diurnal refueling stopovers, sleep is likely to be a major constraint for many migratory passerine species. Sleep may help to increase the endogenous antioxidant capacity that counteracts free radicals produced during endurance flight and reduces energy expenditure. Here, we investigated the relationship between sleep behavior, food intake, and two markers of physiological condition—the amount of energy reserves and oxidative status—in two migratory songbird species, the garden warbler (Sylvia borin) and the whitethroat (Sylvia communis). In garden warblers, birds with high energy stores were more prone to sleep during the day, while this condition-dependent sleep pattern was not present in whitethroats. In both species, birds with low energy stores were more likely to sleep with their head tucked in the feathers during nocturnal sleep. Moreover, we found a positive correlation between food intake and the extent of energy reserves in garden warblers, but not in whitethroats. Finally, we did not find significant correlations between oxidative status and sleep, or oxidative status and energy stores. Despite our study was not comparative, it suggests that different species might use different strategies to manage their energy during stopover and, additionally, it raises the possibility that migrants have evolved physiological adaptations to deal with oxidative damage produced during migration.

Authors/Creators:Ferretti, Andrea and McWilliams, Scott R. and Rattenborg, Niels C. and Maggini, Ivan and Cardinale, Massimiliano and Fusani, Leonida
Title:Energy stores, oxidative balance and sleep in migratory Garden Warblers (Sylvia borin) and Whitethroats (Sylvia communis) at a spring stopover site
Year of publishing :2020
Volume:2
Article number:obaa010
Number of Pages:15
Publisher:Oxford University Press, The Society for Integrative and Comparative Biology
ISSN:2517-4843
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
URN:NBN:urn:nbn:se:slu:epsilon-p-105943
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-105943
Additional ID:
Type of IDID
DOI10.1093/iob/obaa010
ID Code:17135
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:26 Jun 2020 08:20
Metadata Last Modified:26 Jun 2020 08:20

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