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Keywords: energetic cost
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Journal Articles
J Exp Biol (2019) 222 (17): jeb202895.
Published: 3 September 2019
... them to take faster, shorter, more efficient strides. Biomechanics Energetic cost Metabolic cost Gait Stride frequency Assistive device Running expends more energy than any other commonly used form of locomotion, including walking, swimming and flying ( Alexander, 2005 ; Butler...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (20): 3641–3648.
Published: 15 October 2017
... that the large claw does not increase energetic costs during sustainable locomotion. Following non-sustainable, strenuous locomotion, however, there was a trend for clawed crabs to have higher concentrations of lactate in their blood than declawed crabs, suggesting that bearing a large claw may increase...
Journal Articles
J Exp Biol (2017) 220 (6): 995–1007.
Published: 15 March 2017
... consumed the greater the volume filtered. Together, these data suggest that sponges have active control over the volume of water they process, which may be an adaptation to reduce the energetic cost of filtration in times of high stress. * Author for correspondence ( sleys@ualberta.ca ) Competing...
Includes: Supplementary data
Journal Articles
J Exp Biol (2016) 219 (19): 3106–3113.
Published: 1 October 2016
...-offs but also by movement variability, which can influence the average cost actually experienced in practice. A higher energetic cost is expected for either alternative, lifting the foot higher or scuffing the foot harder as a function of vertical foot lift (Eqn 1). The cost of increasingly positive...
Journal Articles
J Exp Biol (2015) 218 (22): 3541–3550.
Published: 1 November 2015
... advantage, perhaps in its timing or spatial location, that is not presently understood. To gain insight into this matter, we proposed and tested a mechanistic explanation for the disadvantages of reduced ankle push-off. Ankle push-off Biomechanics Energetic cost Locomotion Dynamic walking model...
Journal Articles
J Exp Biol (2013) 216 (13): 2459–2468.
Published: 1 July 2013
... across species. If we assume our energy estimates pertain to each EOD cycle and that each cycle is independent, then the energetic cost is also expected to increase proportionately with EOD frequency. Similar estimates of energy are found for more realistic multi-pole electric field models ( Chen et...
Journal Articles
J Exp Biol (2013) 216 (1): 43–46.
Published: 1 January 2013
... intraspecific variability observed in host manipulation in nature ( Thomas et al., 2011 ) as the intensity of the manipulation could be related to the host condition. Empirical data on energetic costs associated with manipulated behaviours in different systems are clearly required. The HERC hypothesis...
Journal Articles
J Exp Biol (2011) 214 (5): 829–835.
Published: 1 March 2011
... energetic cost migration osmoregulation phenotypic flexibility shorebird The basal metabolic rate (BMR) of a homoeothermic vertebrate is the sum of metabolic activities during the inactive period of the day in a thermoneutral environment and post-absorptive state ( McNab, 1997 ; Hulbert...
Journal Articles
J Exp Biol (2009) 212 (2): 231–237.
Published: 15 January 2009
...T. G. Valencak; F. Tataruch; T. Ruf SUMMARY European hares ( Lepus europaeus ) in central Europe have high energetic costs of reproduction, mainly due to precocial, rapidly growing young that rely largely on energy-rich milk. Thus, hares in this climate build up large fat stores during winter...
Journal Articles
J Exp Biol (2008) 211 (6): 1012–1020.
Published: 15 March 2008
...Vielka L. Salazar; Philip K. Stoddard SUMMARY To understand the evolution of sexually dimorphic communication signals, we must quantify their costs, including their energetic costs, the regulation of these costs, and the difference between the costs for the sexes. Here, we provide the first direct...
Journal Articles
J Exp Biol (2006) 209 (1): 158–170.
Published: 1 January 2006
... energetic cost Our intent in this study was to build upon well-established methods for studies of protein synthesis in developing sea urchins to define the costs and energetic implications of such synthesis for energy metabolism. The protocol used in our study for measuring rates of protein...
Journal Articles
J Exp Biol (2005) 208 (13): 2569–2579.
Published: 1 July 2005
... © The Company of Biologists Limited 2005 2005 acidophile cytosolic pH membrane potential energetic cost Chlamydomonas sp Extremely acidic aquatic environments, <pH 3, are rare in comparison to the neutral and slightly alkaline conditions that occur in open lakes and oceans...