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Keywords: resting metabolic rate
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Journal Articles
J Exp Biol (2022) 225 (6): jeb242773.
Published: 23 March 2022
... in resting metabolic rate (RMR) for Weddell seal pups ( n =8) in air and water from one to seven weeks of age, using open-flow respirometry. Concurrently, we collected molt, morphometric and dive behavior data. Absolute metabolic rate (MR) in air followed the expected allometric relationship with mass...
Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243393.
Published: 8 March 2022
... in animals . Proc. Natl. Acad. Sci. U.S.A. 107 , 15816 - 15820 . 10.1073/pnas.1009974107 Baškiera , S. and Gvoždík , L. ( 2021 ). Repeatability and heritability of resting metabolic rate in a long-lived amphibian . Comp. Biochem. Physiol. A Mol. Integr. Physiol. 253 , 110858...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (17): jeb242608.
Published: 13 September 2021
... of discrete severities. The costs and consequences of the immune response were assessed through comparisons of change in resting metabolic rate (RMR), energy metabolites (glucose, glycerol, triglycerides), innate immunity (bactericidal ability), sprint speed and oxidative status (antioxidant capacity...
Journal Articles
J Exp Biol (2021) 224 (14): jeb238279.
Published: 19 July 2021
... that the emission of contact calls significantly increases oxygen consumption; vocal individuals spent, on average, 12.42 kJ more during social signaling trials than they spent during silent trials. We also found that as resting metabolic rate increased in males, there was a decreasing probability that they would...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (10): jeb225185.
Published: 27 May 2020
... and the modulation of immune function during pregnancy in a non-mammalian vertebrate, we elicited an immune response in pregnant and non-pregnant pygmy rattlesnakes, Sistrurus miliarius , using lipopolysaccharide (LPS). Resting metabolic rate (RMR) was measured using flow-through respirometry. Immune function...
Journal Articles
J Exp Biol (2019) 222 (22): jeb212738.
Published: 27 November 2019
... keyserlingi Predation Time allocation Attack behaviour Web structure Resting metabolic rate It is well understood that the risk of predation induces notable changes in the behaviour and physiology of animals ( Lima, 1998 ; Lima and Dill, 1990 ). Theoretical ( Charnov, 1976 ; MacArthur...
Journal Articles
J Exp Biol (2018) 221 (24): jeb190066.
Published: 12 December 2018
... ecology. Energy is a fundamental currency to quantify these costs, as energetic trade-offs often exist between key fitness-related processes. Daily energy expenditure (DEE) comprises of resting metabolic rate (RMR) and energy available for activity, which are linked via the energy management strategy...
Journal Articles
J Exp Biol (2018) 221 (21): jeb183749.
Published: 31 October 2018
... to litter size at different ambient temperatures. Golden hamsters reach 8–10 times resting metabolic rate when raising offspring under cold conditions, which is compatible with the findings from laboratory mice and other rodents. * Authors for correspondence ( sarah.ohrnberger@vetmeduni.ac.at...
Journal Articles
J Exp Biol (2018) 221 (12): jeb171108.
Published: 20 June 2018
... kennicottii ), which occupy the Sonoran Desert of southwestern North America, an area of extreme heat and aridity. We exposed wild-caught birds to progressively increasing air temperatures ( T a ) and measured resting metabolic rate (RMR), evaporative water loss (EWL), body temperature ( T b ) and heat...
Journal Articles
J Exp Biol (2018) 221 (6): jeb168930.
Published: 23 March 2018
... in resting metabolic rate above clearly defined upper critical limits of thermoneutrality and increases in evaporative water loss to levels equivalent to 700–1000% of baseline rates at thermoneutral T a . Maximum cooling capacity, quantified as the fraction of metabolic heat production dissipated...
Journal Articles
J Exp Biol (2017) 220 (19): 3488–3498.
Published: 1 October 2017
... that is mediated by low rates of resting metabolism and a very efficient evaporative process that uses a gular flutter mechanism. Caprimulgiformes Hyperthermia Respirometry Evaporative water loss Resting metabolic rate Heat tolerance limit Birds inhabiting hot subtropical deserts face...
Journal Articles
J Exp Biol (2017) 220 (18): 3290–3300.
Published: 15 September 2017
... measurements in seven Sonoran Desert passerine bird species show that heat tolerance limits did not scale with body mass among species, but were ∼50°C for all species. Evaporative water loss Resting metabolic rate Upper critical temperature Body temperature Heat tolerance limit Passerines...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (13): 2436–2444.
Published: 1 July 2017
... torquatus ; ∼86 g) and apostlebird ( Struthidea cinerea ; ∼118 g). At air temperatures ( T a ) exceeding body temperature ( T b ), all five species showed increases in T b to maximum values around 44–45°C, accompanied by rapid increases in resting metabolic rate above clearly defined upper critical limits...
Journal Articles
J Exp Biol (2017) 220 (5): 844–855.
Published: 1 March 2017
..., resting metabolic rate (RMR), organ mass and physiological and biochemical markers of metabolic activity in the Chinese bulbul ( Pycnonotus sinensis ). Groups of Chinese bulbuls were acclimated in a laboratory to the following conditions: (1) warm and long photoperiod, (2) warm and short photoperiod, (3...
Journal Articles
J Exp Biol (2016) 219 (15): 2260–2264.
Published: 1 August 2016
... to disproportionately high rates of mortality at the end of lactation in this species. To examine and quantify metabolic changes associated with reproduction, we measured the resting metabolic rate (RMR) of a female sea otter across gestation, lactation and non-reproductive periods. Concurrently, measurements were made...
Journal Articles
J Exp Biol (2015) 218 (22): 3636–3646.
Published: 1 November 2015
... low resting metabolic rates and low rates of evaporative water loss at their T uc (0.71 W and 1.20 g H 2 O h −1 , respectively), but were more sensitive to increasing air temperature, reaching their HTL at T air of 52°C. Mourning doves and white-winged doves maintained low resting metabolic rates...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (20): 3593–3596.
Published: 15 October 2014
... no competing financial interests. 26 5 2014 14 8 2014 © 2014. Published by The Company of Biologists Ltd 2014 Endothermy Multivariate mixed models Performance Resting metabolic rate RMR V O 2 ,max Metabolic rate (MR) is a fundamental measure in ecology and evolution...
Journal Articles
J Exp Biol (2011) 214 (23): 4010–4020.
Published: 1 December 2011
... study using respirometry (1) to investigate the energetic costs associated with diving in resting and actively swimming adult sea turtles, and (2) to assess the suitability of the accelerometry method to study sea turtle energetics. Resting metabolic rates of our adult green turtles during submergence...
Journal Articles
J Exp Biol (2011) 214 (21): 3605–3612.
Published: 1 November 2011
... indicate that future research may reveal this as a more common pattern than currently assumed in tropical animals, which may have implications in the context of the effect of even small temperature changes on tropical species. resting metabolic rate energy expenditure Molossus foraging strategy...
Journal Articles
J Exp Biol (2011) 214 (6): 988–995.
Published: 15 March 2011
... be driven by the ability of animals to dissipate body heat. To distinguish between the two mechanisms, body mass change, food intake, reproductive output (using litter size and mass) and serum prolactin (PRL) levels were measured in striped hamsters lactating at 23, 30 and 5°C. Resting metabolic rate (RMR...