AudetThomas1997

Référence

Audet, D. and Thomas, D.W. (1997) Facultative hypothermia as a thermoregulatory strategy in the phyllostomid bats, Caroliia perspicillata and Sturnira lilium. Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology, 167(2):146-152.

Résumé

The present study questions whether hypothermic is an artifact due to captivity-induced stress or a thermoregulatory strategy for bats of the neotropical family Phyllostomidae. In Guanacaste, Costa Rica, Carolina perspicillata and Sturnira liliun exhibited a bimodal distribution of body temperatures when submitted to an ambient temperature of 21 °C. Body temperature was highly correlated with body mass in both species. C. perspecillata of mass ?20 g and S. liliun of mass ?17 g remained normothermic (body temperature >37 °C). Whereas at masses below 18 g and 13 g, respectively, >80% of individuals were hypothermic (body temperature ?32°C). In two treatment groups for each species, we restricted food intake to ca. 20% of body mass on either night 1 or night 4 following capture. Hyperthermia wa significantly related to food-restriction, but not time in captivity. Metabolic rate (ml O2 · g-1 h-1) at ambient temperatures =21 °C was MR = e(t-2.11 + 0.101 Tb) (r2 = 0.7, P < 0.001) for C. perspicillata and MR = e(t-2.62 + 0.115 Tb) (r2 = 0.89) for S. liliun. Free-ranging, radio tagged C. perspicillata exhibited daily depression of body temperature to 33-34°C. We conclude that hypothermia is an thermoregulatory strategy that allows phyllostomid bats to adjust metabolic rate to feeding success and the level of fat stores.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { AudetThomas1997,
    AUTHOR = { Audet, D. and Thomas, D.W. },
    TITLE = { Facultative hypothermia as a thermoregulatory strategy in the phyllostomid bats, Caroliia perspicillata and Sturnira lilium },
    JOURNAL = { Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology },
    YEAR = { 1997 },
    VOLUME = { 167 },
    PAGES = { 146-152 },
    NUMBER = { 2 },
    NOTE = { 01741578 (ISSN) Cited By (since 1996): 13 Export Date: 26 April 2007 Source: Scopus CODEN: JCPBD doi: 10.1007/s003600050058 Language of Original Document: English Correspondence Address: Audet, D.; Biology Department; Augustina University of College Camrose, AL, Canada References: Arata, A.A., Jones, C., Homeothermy in Carollia (Phyllostomidae: Chiroptera) and the adaptation of poikilothermy in insectivorous northern bats (1967) Lozania (Acta Zool Columb), 14, pp. 1-10; Audet, D., Thomas, D.W., Evaluation of the accuracy of body temperature measurement using external radio transmitters (1996) Can J Zool; Blem, C.R., Avian energy storage (1990) Current Ornithology, 7, pp. 59-113. , Power DM (ed) Plenum Press, New York; Calder, W.A., When do hummingbirds use torpor in nature? (1994) Physiol Zool, 67, pp. 1051-1076; Cloutier, D., Thomas, D.W., Carollia perspicillata (1992) Mamm Spec, 417, pp. 1-9; Davis, W.H., Reite, W.B., Response of bats from temperate regions to changes in ambient temperature (1967) Biol Bull, 132, pp. 320-328; Fleming, T.H., (1988) The Short-tailed Fruit Bat. A Study in Plant-animal Interactions, , The University of Chicago Press, Chicago; Geiser, F., Reduction of metabolism during hibernation and daily torpor in mammals and birds: Temperature effect of physiological inhibition? (1988) J Comp Physiol B, 158, pp. 25-37; Hirshfeld, J.R., O'Farrell, M.J., Comparisons of differential warming rates and tissue temperatures in some species of desert bats (1976) Comp Biochem Physiol, A55, pp. 83-87; Kru?ger, K., Prinzinger, R., Schuchmann, K.-L., Torpor and metabolism in hummingbirds (1982) Comp Biochem Physiol, A73, pp. 679-689; McManus, J.J., Thermoregulation (1977) Biology of Bats of the New World Family Phyllostomatidae Part II, pp. 281-292. , Baker RJ et al. (eds) The Museum of Texas Technological University, Lubbock, Texas, USA; MacManus, J.J., Nellis, D.W., Temperature regulation in three species of tropical hats (1972) J Mammal, 53, pp. 226-227; McNab, B.K., The economics of temperature regulation in neotropical bats (1969) Comp Biochem Physiol, 31, pp. 227-268; Van De Meere, J., Piersma, T., Physiologically inspired regression models for estimating and predicting nutrient stores and their composition in birds (1994) Physiol Zool, 67, pp. 305-329; Morrison, D.W., Lunar phobia in a neotropical fruit bat, Artiheus jamaicensis (Chiroptera: Phyllostomidae) (1978) Anim Behav, 26, pp. 852-855; Morrison, P., McNab, B.K., Temperature regulation in some Brazilian phyllostomid bats (1967) Comp Biochem Physiol, 21, pp. 207-221; O'Farrell, M.J., Bradley, W.G., Comparative thermal relationships of flight for some bats in the southwestern United States (1977) Comp Biochem Physiol, 58 A, pp. 223-227; Reinertsen, R.E., Nocturnal hypothermia and its energetic significance for small birds living in the arctic and subarctic regions: A review (1983) Polar Res N Series, 1, pp. 269-284; Reinertsen, R.E., Haftorn, S., Nocturnal hypothermia and metabolism in the willow tit Parus montanus at 63°N (1983) J Comp Physiol, 151, pp. 109-118; Reite, O.B., Davis, W.H., Thermoregulation in bats exposed to low ambient temperatures (1966) Proc Soc Exp Biol Med, 121, pp. 1212-1215; Studier, E.H., Wilson, D.E., Thermoregulation in some neotropical bats (1970) Comp Biochem Physiol, 44, pp. 467-471; Studier, E.H., Wilson, D.E., Effects of captivity on thermoregulation and metabolism in Artibeus jamaicensis (Chiroptera: Phyllostomatidae) (1979) Comp Biochem Physiol, A62, pp. 347-350; Studier, E.H., Wilson, D.E., Physiology (1991) Demography and Natural History of the Common Fruit Bat Artibeus Jamaicensis, pp. 9-17. , Handley CO Jr et al. (eds) Smithsonian Inst Press, Washington DC; Thomas, D.W., The physiological ecology of hibernation in vespertilionid bats (1995) Symp Zool Soc Lond, 67, pp. 233-244. , Racey PA, Swift SM (eds) Ecology, evolution and behaviour of Bats; Vogt, F.D., Lynch, G.T., Influence of ambient temperature, nest availability, huddling, and daily torpor on energy expenditure in the white-footed mouse, Peromyscus leucopus (1982) Physiol Zool, 55, pp. 56-63; Wang, L.C.H., Time patterns and metabolic rates of natural torpor in the Richardson's ground squirrel (1979) Can J Zool, 57, pp. 149-155; Wang, L.C.H., Wolowyk, M.W., Torpor in mammals and birds (1988) Can J Zool, 66, pp. 133-137. },
    ABSTRACT = { The present study questions whether hypothermic is an artifact due to captivity-induced stress or a thermoregulatory strategy for bats of the neotropical family Phyllostomidae. In Guanacaste, Costa Rica, Carolina perspicillata and Sturnira liliun exhibited a bimodal distribution of body temperatures when submitted to an ambient temperature of 21 °C. Body temperature was highly correlated with body mass in both species. C. perspecillata of mass ?20 g and S. liliun of mass ?17 g remained normothermic (body temperature >37 °C). Whereas at masses below 18 g and 13 g, respectively, >80% of individuals were hypothermic (body temperature ?32°C). In two treatment groups for each species, we restricted food intake to ca. 20% of body mass on either night 1 or night 4 following capture. Hyperthermia wa significantly related to food-restriction, but not time in captivity. Metabolic rate (ml O2 · g-1 h-1) at ambient temperatures =21 °C was MR = e(t-2.11 + 0.101 Tb) (r2 = 0.7, P < 0.001) for C. perspicillata and MR = e(t-2.62 + 0.115 Tb) (r2 = 0.89) for S. liliun. Free-ranging, radio tagged C. perspicillata exhibited daily depression of body temperature to 33-34°C. We conclude that hypothermia is an thermoregulatory strategy that allows phyllostomid bats to adjust metabolic rate to feeding success and the level of fat stores. },
    KEYWORDS = { Caroliia perspicillata Sturnira lilium },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Colloque **************************** **********************************************************

1er au 3 mai 2019
UQAC

********************************************************** ********************* Traits **************************** **********************************************************

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

Cours intensif sur l'analyse des pistes 
6-10 mai 2019, Université de Sherbrooke
Cours intensif : Taxonomie et méthodes d’échantillonnage en tourbières 
6-17 mai 2019, Université Laval
Dendrochronological Fieldweek 2019 
16-21 mai 2019, Station FERLD
Traits Fonctionnels des Organismes - École thématique internationale 
19-24 mai 2019, Porquerolles, France
Cours aux cycles supérieurs: Terrain avancé en géographie 
10-15 juin 2019, FERLD, Abitibi-Témiscamingue
École d'été « Drones et télédétection environnementale » 
13-14 juin 2019, Sherbrooke
Ecole d'été en Biologie et Ecologie intégratives 
6-12 juillet 2019, Pyrénées françaises
École d'été en modélisation de la biodiversité 
19-23 août 2019, Orford
Cours aux cycles supérieurs: Aménagement des écosystèmes forestiers 
19-30 août 2019, Station FERLD

********************************************************** ***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...