Thermal energetics and torpor in the common pipistrelle bat, Pipistrellus pipistrellus (Vespertilionidae: Mammalia).

Détails

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Version: de l'auteur
ID Serval
serval:BIB_ACF1599A801A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Thermal energetics and torpor in the common pipistrelle bat, Pipistrellus pipistrellus (Vespertilionidae: Mammalia).
Périodique
Comparative Biochemistry and Physiology. Part A, Molecular and Integrative Physiology
Auteur(s)
Genoud M., Christe P.
ISSN
1531-4332 (Electronic)
ISSN-L
1095-6433
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Volume
160
Numéro
2
Pages
252-259
Langue
anglais
Résumé
Rate of metabolism and body temperature were studied between -6°C and 38°C in the common pipistrelle bat Pipistrellus pipistrellus (Vespertilionidae), a European species lying close to the lower end of the mammalian size range (body mass 4.9±0.8g, N=28). Individuals maintained only occasionally a normothermic body temperature averaging 35.4±1.1°C (N=4) and often showed torpor during metabolic runs. The thermoneutral zone was found above 33°C, and basal rate of metabolism averaged 7.6±0.8mL O(2)h(-1) (N=28), which is 69% of the value predicted on the basis of body mass. Minimal wet thermal conductance was 161% of the expected value. During torpor, the rate of metabolism was related exponentially to body temperature with a Q(10) value of 2.57. Torpid bats showed intermittent ventilation, with the frequency of ventilatory cycles increasing exponentially with body temperature. Basal rate of metabolism (BMR) varied significantly with season and body temperature, but not with body mass. It was lower before the hibernation period than during the summer. The patterns observed are generally consistent with those exhibited by other vespertilionids of temperate regions. However, divergences occur with previous measurements on European pipistrelles, and the causes of the seasonal variation in BMR, which has only rarely been searched for among vespertilionids, remain to be examined.
Pubmed
Web of science
Création de la notice
17/06/2011 9:51
Dernière modification de la notice
03/03/2018 20:28
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