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Keywords: basal metabolic rate
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Journal Articles
J Exp Biol (2022) 225 (17): jeb244502.
Published: 9 September 2022
... and thermogenesis in Chinese hwameis ( Garrulax canorus ), we compared body mass, basal metabolic rate (BMR), energy intake and cellular metabolic capacity of the tissue (muscle) and/or organs (liver, kidney, heart and small intestine) in seasonally acclimatized and laboratory-acclimated hwameis. A significant...
Journal Articles
J Exp Biol (2020) 223 (19): jeb215384.
Published: 9 October 2020
... is not related to flight duration or change in lean body mass. Avian migration Basal metabolic rate Peak metabolic rate Metabolic scope Flight Each year, billions of songbirds (Passeriformes) travel extraordinary distances between their wintering grounds and their more temperate breeding...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (7): jeb220137.
Published: 9 April 2020
... acclimatization in birds from subtropical and tropical regions with milder winters, but there remains a dearth of acclimation studies investigating metabolic flexibility among lower-latitude birds. We used short-term thermal acclimation experiments to investigate phenotypic flexibility in basal metabolic rate...
Journal Articles
J Exp Biol (2019) 222 (14): jeb199513.
Published: 19 July 2019
... (increased-intake hypothesis) or reallocate energy from maintenance processes (compensation hypothesis). The first hypothesis predicts a positive relationship between basal metabolic rate (BMR) and energy expenditure (DEE) because of the higher energy demands of the metabolic system at rest. The second...
Journal Articles
J Exp Biol (2015) 218 (2): 249–254.
Published: 15 January 2015
...Julita Sadowska; Andrzej K. Gębczyński; Katarzyna Paszko; Marek Konarzewski From an evolutionary perspective, the high basal metabolic rate (BMR) of homeotherms is hypothesised to be a by-product of natural selection for effective parental care. We estimated daily milk output during two consecutive...
Journal Articles
J Exp Biol (2014) 217 (9): 1504–1509.
Published: 1 May 2014
... whether the link between reproduction and OS is mediated by basal metabolic rate (BMR), which has been hypothesized to affect both the rate of radical oxygen species production and antioxidative capacity. We studied the effect of reproduction on OS in females of laboratory mice divergently selected...
Journal Articles
J Exp Biol (2014) 217 (6): 997–1002.
Published: 15 March 2014
... that huddling exerts on the flexibility of the basal metabolic rate (BMR) due to thermal acclimation remains unknown. We determined BMR values in Octodon degus , an endemic Chilean rodent, after being acclimated to either 15 or 30°C during 60 days, both alone and in groups of three and five individuals. At 15°C...
Journal Articles
J Exp Biol (2013) 216 (18): 3564–3574.
Published: 15 September 2013
... declared. 16 11 2012 8 5 2013 © 2013. Published by The Company of Biologists Ltd 2013 basal metabolic rate energetics gait transition gravidity life history respiratory physiology Intraspecific variation in metabolic rate and locomotor performance remain poorly...
Journal Articles
J Exp Biol (2013) 216 (9): 1726–1735.
Published: 1 May 2013
... © 2013. Published by The Company of Biologists Ltd 2013 flight gannet energetics heart rate method basal metabolic rate diving seasonal change The breeding season of seabirds, like that of other birds, is the period of the annual cycle where field metabolic rate (FMR) reaches...
Journal Articles
J Exp Biol (2013) 216 (3): 418–426.
Published: 1 February 2013
..., Riverside, CA 92521, USA ( vcareau@ucr.edu ) 27 6 2012 2 10 2012 © 2013. 2013 basal metabolic rate BMR doubly labelled water field metabolic rate sustained metabolic scope Basal metabolic rate (BMR; the lowest measured metabolic rate of a post-absorptive, normothermic...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (18): 3191–3199.
Published: 15 September 2012
.... Summary of ANOVA/ANCOVA of total (whole body), M lean -, lean-carcass-mass- and organ-mass-corrected basal metabolic rate measured at the completion of the experiment in 12-month-old mice The DR-induced changes in MR may be due to concurrent reduction in the mass of metabolically active internal...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (18): 3207–3217.
Published: 15 September 2012
... as fixed effects. Significant main effects of treatment were analyzed using least significant difference (LSD) pairwise comparisons. * Author for correspondence ( kschmi5@uwo.ca ) 2 12 2011 28 5 2012 © 2012. 2012 aerobic capacity basal metabolic rate bird glucocorticoid...
Journal Articles
J Exp Biol (2012) 215 (10): 1662–1669.
Published: 15 May 2012
... organ mass feather mass tropical birds pace of life basal metabolic rate Life-history theory postulates that many physiological traits and behaviour patterns may be understood in terms of key maturational and reproductive characteristics over an organism’s life span ( Roff, 1992 ; Stearns...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (10): 1714–1720.
Published: 15 May 2011
... compared peak metabolic rate elicited by running ( ) in hypoxia (14% O 2 ), normoxia (21% O 2 ) and hyperoxia (30% O 2 ) of laboratory mice divergently selected for low and high basal metabolic rate (L-BMR and H-BMR, respectively), mice selected for maximum metabolic rate elicited by swimming ( ) and mice...
Journal Articles
J Exp Biol (2011) 214 (5): 829–835.
Published: 1 March 2011
... in their ‘osmoregulatory machinery’, but the metabolic consequences of salinity acclimatization are still not well understood. We investigated the effects of salinity on basal metabolic rate (BMR), body mass and daily energy consumption of a long-distance migratory shorebird, the dunlin ( Calidris alpina ), outside...
Journal Articles
J Exp Biol (2008) 211 (19): 3195–3204.
Published: 1 October 2008
... spectrometry phospholipids glycerophospholipids lipid class lipid rafts ESI–MS basal metabolic rate lipidomics The lipid composition of membranes has been suggested as a major factor in determining the metabolic rate of animals. This idea constitutes the Membrane Pacemaker Theory of Metabolism...
Includes: Supplementary data
Journal Articles
J Exp Biol (2007) 210 (19): 3407–3414.
Published: 1 October 2007
...Børge Moe; Frédéric Angelier; Claus Bech; Olivier Chastel SUMMARY Ageing is associated with a decline in basal metabolic rate (BMR) in many species, including humans. The evolutionary and physiological causes underlying the relationship between age and BMR are poorly understood. Studies...
Journal Articles
J Exp Biol (2007) 210 (1): 97–106.
Published: 1 January 2007
...Andrew E. McKechnie; Kinesh Chetty; Barry G. Lovegrove SUMMARY Many birds exhibit considerable phenotypic flexibility in maintenance energy requirements, and up- or downregulate basal metabolic rate (BMR) over time scales of days to weeks during thermal acclimation. However, the extent to which...
Journal Articles
J Exp Biol (2006) 209 (16): 3141–3154.
Published: 15 August 2006
... of sustainable thermogenic capacity. However, improved endurance to cold can also be achieved without significant changes in M sum . The same is true for basal metabolic rate (BMR),which is known to increase in association with cold acclimatization or acclimation in some species but not in others. We...
Journal Articles
J Exp Biol (2005) 208 (24): 4663–4669.
Published: 15 December 2005
...Bernt Rønning; Børge Moe; Claus Bech SUMMARY Basal metabolic rate (BMR) is a physiological trait believed to show adaptational changes. Few studies have tested whether BMR shows stable between-individual variations. Repeatability indicates that the trait might be heritable and therefore a possible...