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Keywords: metabolic rate
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Journal Articles
J Exp Biol (2022) 225 (10): jeb243294.
Published: 26 May 2022
... elevational distribution and tested their physiological response to novel abiotic conditions. First, at a central aviary within their current elevational range, we measured hovering metabolic rate to assess their response to oxygen conditions and torpor use to assess their response to thermal conditions...
Journal Articles
J Exp Biol (2022) 225 (9): jeb243802.
Published: 5 May 2022
...) to investigate the effects of climate change on larval and juvenile growth and metabolic rate. We found that in F1, OA as a single stressor at ambient temperature did not affect larval or juvenile growth and OW increased developmental time and growth rate, but OAW decreased larval size at metamorphosis. Larval...
Includes: Supplementary data
Journal Articles
J Exp Biol jeb.244239.
Published: 3 May 2022
... Aerobic scope Exercise Hypoxia Maximum oxygen uptake Metabolic rate Natural Sciences and Engineering Research Council of Canada https://dx.doi.org/10.13039/501100000038 Characterizing the hypoxic performance of a fish using a new metric: PAAS-50 Yangfan Zhang a,b*, Daniel W. Montgomery...
Journal Articles
J Exp Biol (2022) 225 (8): jeb243407.
Published: 21 April 2022
...Connor Reeve; Lauren E. Rowsey; Ben Speers-Roesch ABSTRACT Winter dormancy is a seasonal survival strategy common among temperate ectotherms, characterized by inactivity, fasting and low metabolic rates. Previous reports of metabolic rate depression (MRD) in winter-dormant ectotherms, including...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243313.
Published: 8 March 2022
... factors to affect variation in metabolic rate both within and across species. Such causal interactions are revealed by significant effects of these factors on the body-mass scaling slope of metabolic rate. I discuss five possible major kinds of methods for removing body-size effects that attempt...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (24): jeb243504.
Published: 13 December 2021
... to constant temperatures caused some changes in aerobic scope at the three measurement temperatures via adjustments in standard and maximum metabolic rates, and growth rates were lower in the 23°C-acclimated group than in all other groups. The metabolic parameters and growth rates of the thermally variable...
Journal Articles
J Exp Biol (2021) 224 (23): jeb243456.
Published: 9 December 2021
... of ambient temperature on metabolic rate, respiratory quotient, and torpor in an arctic hibernator . Am. J Physiol. Reg. Int. Comp. Physiol. 279 , R255 - R262 . 10.1152/ajpregu.2000.279.1.R255 Bürkner , P.-C. ( 2017 ). brms: An R Package for Bayesian Multilevel Models using Stan . J...
Journal Articles
J Exp Biol (2021) 224 (23): jeb242993.
Published: 9 December 2021
... in walruses is scarce. In the present study, 3 adult female Pacific walruses ( Odobenus rosmarus divergens ) housed in professional care participated in flow-through respirometry trials to measure metabolic rates while floating inactive at the water surface during a minimum of 5 min, during a 180 s stationary...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (22): jeb242364.
Published: 26 November 2021
... embryonic changes suggest that this initiates key ionoregulatory and respiratory functions in preparation for a fast pace of life. Ionoregulatory hypothesis Oxygen hypothesis Gas exchange Metabolic rate Ionocytes Ontogeny Australian Research Council http://dx.doi.org/10.13039...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (18): jeb242522.
Published: 14 September 2021
...Shaun S. Killen; Emil A. F. Christensen; Daphne Cortese; Libor Závorka; Tommy Norin; Lucy Cotgrove; Amélie Crespel; Amelia Munson; Julie J. H. Nati; Magdalene Papatheodoulou; David J. McKenzie ABSTRACT Interest in the measurement of metabolic rates is growing rapidly, because of the importance...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (16): jeb242597.
Published: 20 August 2021
...Qiaohui Hu; Thomas J. Nelson; Roger S. Seymour ABSTRACT The metabolic rate of vertebrate bone tissue is related to bone growth, repair and homeostasis, which are all dependent on life stage. Bone metabolic rate is difficult to measure directly, but absolute blood flow rate ( ) should reflect local...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (16): jeb241885.
Published: 12 August 2021
... ( nuclear protein 1 , Na + /K + /2Cl − co-transporter-1-a ) at temperatures ≥20°C. We then examined the effects of acclimation temperature on metabolic rate (MR) and physiological parameters in fish exposed to an acute exhaustive exercise and air exposure stress. Fish acclimated to temperatures ≥20°C...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (13): jeb202747.
Published: 7 July 2021
... a new way of studying the energetics of giant marine vertebrates, for which captive experiments are limited or impossible. Metabolic rate Energy budget Locomotion Electronic tag As summarised in Fig. 1 , few data on the oxygen consumption rates (during resting or routine conditions...
Journal Articles
J Exp Biol (2021) 224 (8): jeb242210.
Published: 30 April 2021
...Brad A. Seibel; Alyssa Andres; Matthew A. Birk; Alexandra L. Burns; C. Tracy Shaw; Alexander W. Timpe; Christina J. Welsh ABSTRACT The critical oxygen partial pressure ( P crit ), typically defined as the P O 2 below which an animal's metabolic rate (MR) is unsustainable, is widely interpreted...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (7): jeb236398.
Published: 15 April 2021
.... Cricket Flight Immunocompetence Metabolic rate Multiple stressor Wing dimorphism Ongoing global climate change exposes animals to environmental stressors, such as heat waves, which can impose fitness-related costs, including reduced reproduction, somatic growth, locomotor capacity and immune...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (Suppl_1): jeb229211.
Published: 24 February 2021
... ), evaporative water loss (EWL) and resting metabolic rate (RMR) measured under standardized conditions of very low humidity in 56 arid-zone species. Maximum T b during acute heat exposure varied from 42.5±1.3°C in caprimulgids to 44.5±0.5°C in passerines. Among passerines, both maximum T b and the difference...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (4): jeb236216.
Published: 16 February 2021
...Chihiro Kinoshita; Takuya Fukuoka; Tomoko Narazaki; Yasuaki Niizuma; Katsufumi Sato ABSTRACT Animals with high resting metabolic rates and low drag coefficients typically have fast optimal swim speeds in order to minimise energy costs per unit travel distance. The cruising swim speeds of sea...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (3): jeb232512.
Published: 4 February 2021
...-related stressor effects in marine ecosystems . J. Exp. Biol . 213 , 881 - 893 . 10.1242/jeb.037523 Pörtner , H. O. and Grieshaber , M. K. ( 1993 ). Critical PO2(s) in oxyconforming and oxyregulating animals: Gas exchange, metabolic rate and the mode of energy production...
Journal Articles
J Exp Biol (2021) 224 (2): jeb233379.
Published: 19 January 2021
.... An analysis of temperature sensitivity ( Q 10 values) revealed that protein synthesis, the major ATP-consuming process in larvae of C. gigas , is more sensitive to temperature change ( Q 10 value of 2.9±0.18) than metabolic rate ( Q 10 of 2.0±0.15). Ion transport by Na + /K + -ATPase measured in vivo has a Q...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (1): jeb227264.
Published: 12 January 2021
... requires energy, increasing metabolic rate relative to resting situations. We analysed the respiratory pattern and energetic cost of pedestrian locomotion in the blood-sucking bug Rhodnius prolixus using flow-through respirometry, by measuring carbon dioxide emission and water loss before, during and after...
Includes: Supplementary data