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Keywords: heterothermy
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Journal Articles
J Exp Biol (2021) 224 (3): jeb141309.
Published: 3 February 2021
... study of heterothermy in endotherms and its relationship to performance metrics, and (3) integration of the costs and benefits of T b regulation into ecological studies of endotherms. Our ability to synthesise and draw generalities grows with the number of species for which detailed mechanistic...
Journal Articles
J Exp Biol (2021) 224 (1): jeb237743.
Published: 12 January 2021
.... Body temperature Development Endothermy Heterothermy Life history Poultry Thermoregulation Japanese quail, Coturnix japonica Temminck and Schlegel 1849, eggs (Stjärnås Djur och Fjäder, Lessebo, Sweden) of unknown sex were incubated in three incubators (Ruvmax, Ödskölt, Sweden) maintained...
Journal Articles
J Exp Biol (2020) 223 (21): jeb231761.
Published: 3 November 2020
... and hatchlings of the emu (Dromaius novaehollandiae) . Respir. Physiol. Neurobiol.   155 , 286 - 292 . 10.1016/j.resp.2006.06.001 Eichhorn , G. , Groscolas , R. , Le Glaunec , G. , Parisel , C. , Arnold , L. , Medina , P. and Handrich , Y. ( 2011 ). Heterothermy in growing...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (8): jeb214825.
Published: 22 April 2020
... availability, but it is slowed down by limited food and the resulting lower body mass. Vespertilio murinus Energetic trade-off Body condition Spermatogenesis Heterothermy We used general additive mixed models (GAMM) to determine factors affecting body mass gain and HI 1. The best models...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (8): jeb220046.
Published: 20 April 2020
... and captive great tits reduce temperature of the bill in response to food restriction. Thermoregulation Thermoneutral zone Heterothermy Thermal imaging Winter Winter in seasonal habitats is often challenging for small endotherms as severe weather increases thermoregulatory costs while...
Journal Articles
J Exp Biol (2020) 223 (6): jeb211912.
Published: 23 March 2020
... to cause a trade-off between energy conservation and recovery. Healing Heterothermy Histology Lipid profiles Myotis lucifugus Wildlife disease Wildlife infectious diseases are increasing globally owing, in part, to human encroachment into natural habitats and increased travel and trade...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (6): jeb196691.
Published: 21 March 2019
... sk that did not cross the torpor threshold). To allow our data to be comparable to previous studies of our study system ( McGuire et al., 2014 ; Jonasson, 2017 ), we chose not to use techniques recently proposed for classifying torpor use (heterothermy index: Boyles et al., 2011 ; non-stationary...
Journal Articles
J Exp Biol (2018) 221 (1): jeb171124.
Published: 10 January 2018
... to cold, particularly in Arctic birds. Here, we have studied the potential use of local heterothermy (i.e. tissue cooling that can contribute to significantly lower heat loss rate) in Svalbard ptarmigan ( Lagopus muta hyperborea ) – the world's northernmost land bird. We exposed birds kept under simulated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (13): 2380–2386.
Published: 1 July 2017
... prone to using facultative heterothermy than generalists. We tested this hypothesis at the intraspecific level using male laboratory mice (C57BL/cmdb) fasted under different thermal conditions (20 and 10°C) and for different time periods (12–48 h). We predicted that variability of body temperature ( T b...
Journal Articles
J Exp Biol (2017) 220 (2): 220–226.
Published: 15 January 2017
... antechinus in response to a combination of fire cues (food restriction, smoke and a charcoal/ash substrate), indicating a previously unrecognised regulatory mechanism for thermal biology in mammals. Activity Behaviour Fire Heterothermy Mammal Physiology The physiological and behavioural...
Journal Articles
J Exp Biol (2015) 218 (18): 2961–2969.
Published: 1 September 2015
... responses depending on their metabolic status. Acute phase response Circadian variation Dose dependence Heterothermy LPS Sickness behaviour Taeniopygia guttata Zebra finch Fever, a closely regulated increase in the body's set-point temperature in response to infection...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (11): 1813–1820.
Published: 1 June 2011
.... This effect correlated better with the time of the year than with proximate thermal stressors, suggesting that either season itself or some factor correlated with season, such as food availability, caused the change. Water saving has been proposed as a selective advantage of heterothermy in other large...
Journal Articles
J Exp Biol (2011) 214 (3): 469–475.
Published: 1 February 2011
.... These results support the hypothesis that forager T th within the nest is correlated to broad-scale differences in foraging motivation. * Author for correspondence ( jnieh@ucsd.edu ) 21 10 2010 © 2011. 2011 thermoregulation heterothermy foraging waggle dance recruitment honey bee...
Journal Articles
J Exp Biol (2009) 212 (19): 3068–3075.
Published: 1 October 2009
...Michał S. Wojciechowski; Berry Pinshow SUMMARY For small endothermic animals, heterothermy serves as an energy-saving mechanism for survival in challenging environments, but it may also accelerate fat accumulation in individuals preparing for fuel-demanding activities. This is the first study...
Journal Articles
J Exp Biol (2009) 212 (12): 1801–1810.
Published: 15 June 2009
...Danielle L. Levesque; Glenn J. Tattersall SUMMARY Mammalian heterotherms are known to be more tolerant of low oxygen levels than homeotherms. However, heterotherms demonstrate extreme seasonality in daily heterothermy and torpor expression. Because hypoxia depresses body temperature ( T b...
Journal Articles
J Exp Biol (2006) 209 (8): 1421–1429.
Published: 15 April 2006
...Stéphane Ostrowski; Joseph B. Williams SUMMARY To test whether free-living desert ungulates employ heterothermy to reduce water loss, we measured core body temperature ( T b ) of six free-living Arabian sand gazelles ( Gazella subgutturosa marica ), a small desert antelope (12–20 kg) that lives...
Journal Articles
J Exp Biol (2004) 207 (1): 41–46.
Published: 1 January 2004
... of the Puerto Rican Tody: heterothermy, torpor, and intra-island variation. Ecology 81 , 990 -1003. Miller, L. K. and Irving, L. ( 1967 ). Temperature-related nerve function in warm- and cold-climate muskrats. Am. J. Physiol. 213 , 1295 -1298. Montgomery, J. C. and MacDonald, J. A. ( 1990...
Journal Articles
J Exp Biol (2003) 206 (9): 1471–1478.
Published: 1 May 2003
...Stéphane Ostrowski; Joseph B. Williams; Khairi Ismael SUMMARY To test the idea that large, free-living, desert ungulates use heterothermy to reduce water loss, we measured core body temperature( T b ) of six free-ranging, adult Arabian oryx ( Oryx leucoryx ) during 2 years in the arid desert...
Journal Articles
J Exp Biol (2002) 205 (15): 2251–2266.
Published: 1 August 2002
... features including the structure of their swimming muscles and some form of regional endothermy,termed heterothermy. These heterothermies fall into two classes: those that maintain elevated temperatures in swimming muscles and those that have muscle-derived tissues specialized for delivering warm blood...
Journal Articles
J Exp Biol (2002) 205 (14): 2099–2105.
Published: 15 July 2002
... the maximum body temperature was 0.80 W(25 %) at 10 °C, 0.71 W (33 %) at 20 °C and 0.40 W (47 %) at 30°C. This study demonstrates in several ways the ability of this species to adjust energy expenditure through heterothermy. This calculation and subsequent conversion to units of energy requires knowledge...