Data from: Novel energy-saving strategies to multiple stressors in birds: the ultradian regulation of body temperature

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Description:

This study aimed to examine thermoregulatory responses in birds facing two commonly experienced stressors, cold and fasting. Logging devices allowing long-term and precise access to internal body temperature were placed within the gizzards of ducklings acclimated to cold (CA) (5°C) or thermoneutrality (TN) (25°C). The animals were then examined under three equal 4-day periods: ad libitum feeding, fasting and re-feeding. Through the analysis of daily as well as short-term, or ultradian, variations of body temperature, we showed that while ducklings at TN show only a modest decline in daily thermoregulatory parameters when fasted, they exhibit reduced surface temperatures from key sites of vascular heat exchange during fasting. The CA birds, on the other hand, significantly reduced their short-term variations of body temperature while increasing long-term variability when fasting. This phenomenon would allow the CA birds to reduce the energetic cost of body temperature maintenance under fasting. By analysing ultradian regulation of body temperature, we describe a means by which an endotherm appears to lower thermoregulatory costs in response to the combined stressors of cold and fasting.

Usage Notes:

Data for Repository - Tattersall Roussel Voituron Teulier

Data used to construct figures 1, 2, and 3

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Auteur(s) :

Tattersall, Glenn J.

Tattersall, Glenn J.

Brock University

, Roussel, Damien

Roussel, Damien

French National Centre for Scientific Research

, Voituron, Yann

Voituron, Yann

French National Centre for Scientific Research

et Teulier, Loïc

Teulier, Loïc

French National Centre for Scientific Research

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Dépôt source:

Dryad

Éditeur(s):

Dryad

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Accès:

Public

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URL:

http://datadryad.org/stash/dataset/doi:10.5061/dryad.gt5c0

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Date de publication:

2016-08-29

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Mots-clés (en):

homeothermy, body temperature variability, nocturnal hypothermia, fasting, et rhythm

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Identificateur:

https://doi.org/10.5061/dryad.gt5c0

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Citation selon les normes APA:

Data from: Novel energy-saving strategies to multiple stressors in birds: the ultradian regulation of body temperature. (2016). [Data set]. Dryad. http://datadryad.org/stash/dataset/doi:10.5061/dryad.gt5c0

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