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Keywords: Doubly labelled water
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Journal Articles
J Exp Biol (2023) 226 (23): jeb246922.
Published: 6 December 2023
... Australia, were equipped with GPS and tri-axial accelerometers and dosed with doubly labelled water (DLW) to measure energy expenditure during normal behaviour for 3–5 days. The correlation between daily energy expenditure from the DLW and vectorial dynamic body acceleration (VeDBA) was high for both...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (23): jeb185827.
Published: 6 December 2018
...://www.biologists.com/user-licence-1-1/ Highlighted Article: Harbour porpoises are small marine mammals that have high field metabolic rates, and offset increased thermoregulatory costs in winter by building a thick blubber layer during the autumn. Bio-logging Doubly labelled water Energetics Food...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (3): 460–468.
Published: 1 February 2017
... temperatures, as distance to the nearest building increases. We used the doubly labelled water method to obtain 44 measurements of DEE from hedgehogs on four predominately arable sites, to determine the energetic costs associated with proximity to buildings, on sites with and without badgers. The mean±s.e.m...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (14): 2192–2200.
Published: 15 July 2016
...-ranging pelagic cormorants ( Phalacrocorax pelagicus ) and simultaneously estimating energy expenditure using doubly labelled water. Two different formulations of dynamic body acceleration, [vectorial and overall DBA (VeDBA and ODBA)], correlated with mass-specific energy expenditure (both R 2 =0.91...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (6): 805–815.
Published: 15 March 2016
... Summary: Fur removal increases both energy budget and reproductive output at peak lactation in a non-laboratory rodent, the bank vole, supporting the heat dissipation limit theory. Artificial selection Doubly labelled water Food consumption Maternal investment Milk energy output Thermal...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (22): 3964–3967.
Published: 15 November 2014
... in wild root voles ( Microtus oeconomus ) in their natural environment. We measured daily energy expenditure (DEE), using doubly labelled water in shaved and unshaved voles at the beginning of winter. The difference in DEE (corrected for body mass and year effects) between experimental and control group...
Journal Articles
Journal Articles
J Exp Biol (2013) 216 (3): 418–426.
Published: 1 February 2013
... for correspondence at present address: Department of Biology, University of California at Riverside, 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...
Includes: Supplementary data
Journal Articles
Journal Articles
Journal Articles
J Exp Biol (2003) 206 (23): 4267–4281.
Published: 1 December 2003
... females were at day 14 of lactation. Body mass is the mean value for days 9–13 of lactation (reproductive females) or the mean value for eight consecutive days before the day of doubly labelled water (DLW) injection(non-reproductive females). Fig. 3. Total water turnover (rH2Ofem) as a function of body...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2002) 205 (22): 3571–3575.
Published: 15 November 2002
... and that there is an increase during the breeding season. We hypothesized that the difference in seasonal daily field metabolic rate would be a consequence of differences in daytime metabolic rate, and that night-time metabolic rate would be similar during the three seasons. We used doubly labelled water to determine daily...
Journal Articles
J Exp Biol (2001) 204 (18): 3183–3187.
Published: 15 September 2001
...) in the general population, calculated as doubly-labelled-water-assessed average daily metabolic rate as a multiple of basal metabolic rate, has an upper limit of 2.2–2.5. The upper limit of sustainable metabolic rate is approximately twice as high in endurance athletes, mainly because of long-term exercise...
Journal Articles
J Exp Biol (2001) 204 (8): 1491–1501.
Published: 15 April 2001
... internal organs and high metabolic capacities. We first measured the growth rate of nestlings in natural broods of five, six and seven over a 4-day period and then measured parental DEE using doubly labelled water. Adults were then dissected for analyses of body composition and to determine maximum enzyme...
Journal Articles
J Exp Biol (2000) 203 (23): 3655–3665.
Published: 1 December 2000
... were measured using the 18 O doubly-labeled water technique, and diving behavior was measured with time/depth recorders (TDRs). Mean total body water was 66.0±1.1 % (mean ± S.D.) and mean rate of CO 2 production was 0.835±0.114 ml g −1 h −1 , which provides an estimated mass-specific field metabolic...
Journal Articles
J Exp Biol (1999) 202 (20): 2839–2849.
Published: 15 October 1999
...Elzbieta Król; John R. Speakman ABSTRACT The isotope dilution technique for measuring total body water (TBW), and the doubly labelled water (DLW) method for measuring energy expenditure, are both sensitive to small variations in the ratio of the hydrogen to oxygen-18 dilution space. Since...
Journal Articles
Journal Articles
J Exp Biol (1994) 193 (1): 119–137.
Published: 1 August 1994
... relationship between the variables was: (ml min −1 ) = [0.0157 f H (beats min −1 )] 1.60 , r 2 =0.80, P <0.001. In addition to the calibration procedure, six of the albatrosses were injected with doubly labelled water (DLW), and f H and were monitored continuously over a 3 day period while the birds were...