... can rise by more than an order of magnitude above resting, and these costs arise from activating muscle to exert force as well as the work that muscles perform. Over hours or days, locomotion can dominate daily energy expenditure (i.e. field metabolic rate), particularly when provisioning young...

..., and found a DEE of ∼0.8 kJ day −1  g −1 , much lower than our DLW direct estimation (even lower than for males alone, see Table 1 ). Similarly, the Seabird FMR Calculator developed by Dunn et al. (2018) estimated the Peruvian booby's field metabolic rate (FMR) for a colony at the same latitude as our...

... Dunn , R. E. , White , C. R. and Green , J. A. ( 2018 ). A model to estimate seabird field metabolic rates . Biol. Lett. 14 , 20180190 . 10.1098/rsbl.2018.0190 Dunn , R. E. , Wanless , S. , Daunt , F. , Harris , M. P. and Green , J. A. ( 2020...

... is increasingly being used to estimate energy expenditure. However, validation of accelerometry as an accurate proxy for field metabolic rate in free-ranging species is limited. In the present study, Australasian gannets ( Morus serrator ) from the Pope's Eye colony (38°16′42″S 144°41′48″E), south-eastern...

... whales can be challenging, as conventional techniques (e.g. doubly labelled water method) are not feasible ( Butler et al., 2004 ). Instead, because oxygen consumption is fundamentally driven by the respiration rate of cetaceans, it is possible to infer the field metabolic rate (FMR) of free-swimming...

... vulnerability to climate change. As modulated physiological contributions to heat flow incur a greater energy demand than relying on unmodulated passive heat transfer, we then asked whether we could characterize the energetic costs of thermoregulation. We measured field metabolic rate (FMR) in free-living...

... Acquarone , M. , Born , E. W. and Speakman , J. R. ( 2006 ). Field metabolic rates of walrus ( Odobenus rosmarus ) measured by the doubly labeled water method . Aquat. Mamm. 32 , 363 - 369 . 10.1578/AM.32.3.2006.363 Aiello , L. C. and Wheeler , P. ( 1995...

.... Seabirds Doubly labeled water Field metabolic rate Foraging behavior Daily energy expenditure GPS tracking Life history Animals adjust their behavior to maintain homeostasis when energy costs become too great ( Schneider, 2004 ), such as during extreme temperature or weather events...

.... We show that basal energy for subsistence living and activity metabolism, both core components of field metabolic rates, contribute towards incorporation of δ 13 C into otoliths and support the use of δ 13 C as a metabolic proxy in field settings. The functional shapes of the logarithmic...

... be made about the form for random error in the full statistical model (i.e. normal and homoscedastic, normal and heteroscedastic, lognormal and heteroscedastic). The general equation and several modifications thereof were used to study allometric variation in field metabolic rates of marsupial...

... dynamic models ( Buckley et al., 2010 ). Dynamic body acceleration Field metabolic rate Diving Flying Shag Phalacrocorax aristotelis Summary: A calibration of the overall dynamic body acceleration (ODBA) method for estimating behaviour-specific energy expenditure in terms of V̇ O...

...: Calibrations between metabolic rate, body acceleration and temperature in three coastal sharks offer a tool to estimate field metabolic rates in these species. Respirometry Acceleration data logger Elasmobranch Field metabolic rate Bioenergetics The life history and ecology of animals...

... validates the use of dynamic body acceleration in estimating energy expenditure of a foot-propelled diving homeotherm capable of flight in the wild. Doubly labelled water Accelerometry Field metabolic rate Energy expenditure is an important currency in animal ecology, but is difficult...

... responses. In summer, ponies showed a considerably higher field metabolic rate (FMR; 63.4±15.0 MJ day –1 ) compared with food-restricted and control animals in winter (24.6±7.8 and 15.0±1.1 MJ day –1 , respectively). During summer, locomotor activity, resting heart rate and total water turnover were...

... and the energetics of locomotion in horses . Nature   292 , 239 - 240 . Hudson   L. N. , Isaac   N. J. B. , Reuman   D. C. ( 2013 ). The relationship between body mass and field metabolic rate among individual birds and mammals . J. Anim. Ecol.   82 , 1009 - 1020 . Hurley   J...

... for correspondence at present address: Department of Biology, University of California at Riverside, Riverside, CA 92521, USA ( [email protected] ) 27 6 2012 2 10 2012 © 2013. 2013 basal metabolic rate BMR doubly labelled water field metabolic rate sustained metabolic scope Basal...

... investigated sexual dimorphism associated with metabolic strategies for fasting in developing northern elephant seals. Thirty-one juvenile seals of both sexes were sampled over extended fasts during annual autumn haul-outs. Field metabolic rate (FMR) and the contribution of protein catabolism to energy...

... of energy utilization will be highest in the winter, contrary to predictions based on life history theory, and (2) acclimatization of metabolism will occur at multiple levels of organization such that birds operate with a similar metabolic ceiling during different seasons. We measured field metabolic rates...

... field metabolic rates in Arabian babblers (Turdoides squamiceps) . J. Exp. Biol. 205 , 3571 - 3575 . Anderson K. J. , Jetz W. ( 2005 ). The broad-scale ecology of energy expenditure of endotherms . Ecol. Lett. 8 , 310 - 318 . Angelier F. , Clément-Chastel C...

...-mail: [email protected] ) 15 9 2008 © The Company of Biologists Limited 2008 2008 field metabolic rate diving physiology marine mammal hypometabolism O 2 debt CO 2 exchange physiological plasticity The metabolic cost associated with foraging is a critical component...