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Keywords: energetics
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Journal Articles
Journal Articles
J Exp Biol (2023) 226 (21): jeb245296.
Published: 8 November 2023
...Adam F. Parlin; Mitchell J. Kendzel; Orley R. Taylor, Jr; Theresa M. Culley; Stephen F. Matter; Patrick A. Guerra ABSTRACT Migration is an energetically taxing phenomenon as animals move across vast, heterogeneous landscapes where the cost of transport is impacted by permissible ambient conditions...
Includes: Supplementary data
Journal Articles
JEB: 100 years of discovery
Series: CENTENARY ARTICLE
J Exp Biol (2023) 226 (21): jeb245782.
Published: 3 November 2023
...Kevin T. Roberts; Andre Szejner-Sigal; Philipp Lehmann ABSTRACT In seasonal environments, many animals, including insects, enter dormancy, where they are limited to a fixed energy budget. The inability to replenish energetic stores during these periods suggests insects should be constrained by pre...
Journal Articles
J Exp Biol (2023) 226 (15): jeb245256.
Published: 8 August 2023
... control lines in organ mass; V̇ O 2 ,max and BMR are uncorrelated. These results offer limited support for the aerobic capacity model, but are relevant to the ‘behavior evolves first’ model. Basal metabolic rate Behavior Endothermy Energetics Experimental evolution Locomotion...
Includes: Supplementary data
Journal Articles
J Exp Biol (2023) 226 (13): jeb245657.
Published: 14 July 2023
... some evidence for an energetic advantage from sex reversal in both species but do not exclude energetic processes as a constraint on the distribution of sex reversal in nature. Overall, there has been little attention focused on how growth or survival differs in sex-reversed individuals compared...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2023) 226 (12): jeb245614.
Published: 15 June 2023
... observed a U -shaped relationship between movement frequency and metabolic power that could be explained by muscle mechanics. Participants became increasingly ‘tuned’ to exploit tendon compliance and minimise active muscle work the closer they moved to an ‘energetically ideal’ frequency. However...
Includes: Supplementary data
Journal Articles
JEB: 100 years of discovery
Series: CENTENARY ARTICLE
J Exp Biol (2023) 226 (7): jeb245310.
Published: 6 April 2023
... important attributes of its life history and biology. Although evolution may guide animals to different sizes, shapes, energetic profiles or ecological niches, it is the laws of physics that limit biological processes and, in turn, affect how animals interact with their environment. Consideration of scaling...
Journal Articles
JEB: 100 years of discovery
Series: CENTENARY ARTICLE
J Exp Biol (2023) 226 (5): jeb245272.
Published: 14 March 2023
...Amanda McGrosky; Herman Pontzer ABSTRACT Total energy expenditure (TEE) represents the total energy allocated to growth, reproduction and body maintenance, as well as the energy expended on physical activity. Early experimental work in animal energetics focused on the costs of specific tasks (basal...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (18): jeb244755.
Published: 28 September 2022
... running and hopping. Accounting for these changes improves the ‘cost of generating force’ hypothesis application across step frequencies in bouncing gaits. Locomotion Energetics Biomechanics Spring–mass model McCamish Parkinson's Disease Innovation Program For decades...
Journal Articles
J Exp Biol (2022) 225 (18): jeb244163.
Published: 16 September 2022
... of these differences, phocids are expected to have greater energetic costs when moving on land compared with otariids. The mechanical costs of transport (COT) and power outputs of terrestrial locomotion were first obtained from one male and two female adult California sea lions through video recording locomotion...
Includes: Supplementary data
Journal Articles
Journal Articles
Journal Articles
J Exp Biol (2022) 225 (4): jeb243121.
Published: 24 February 2022
...Austin S. Allen; Andrew J. Read; K. Alex Shorter; Joaquin Gabaldon; Ashley M. Blawas; Julie Rocho-Levine; Andreas Fahlman ABSTRACT Estimates of the energetic costs of locomotion (COL) at different activity levels are necessary to answer fundamental eco-physiological questions and to understand...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (4): jeb243548.
Published: 16 February 2022
....2002.330304.x Norton , D. W. ( 1973 ). Ecological energetics of Calidrine Sandpipers breeding in Northern Alaska . Diss. Abst. Int. 34 , 2267 - 2268 . Osborne , O. E. , O'Hara , P. D. , Whelan , S. , Zandbergen , P. , Hatch , S. A. and Elliott , K. H. ( 2020...
Journal Articles
J Exp Biol (2021) 224 (23): jeb242993.
Published: 9 December 2021
... resulted in walruses hauling out on land where they have to travel farther to access productive benthic habitat while potentially increasing energetic costs. Despite the need to better understand the impact of sea ice loss on energy expenditure, knowledge about metabolic demands of specific behaviours...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (22): jeb243040.
Published: 16 November 2021
.... Published by The Company of Biologists Ltd 2021 Highlighted Article: Differences in the mechanics and energetics of walking suggest that children cannot be simply modeled as scaled-down versions of adults. Child Locomotion Energetics Metabolic Spring University of Houston...
Journal Articles
J Exp Biol (2021) 224 (15): jeb242218.
Published: 5 August 2021
...Rebecca Rimbach; Ahmad Amireh; Austin Allen; Brian Hare; Emily Guarino; Chana Kaufman; Hannah Salomons; Herman Pontzer ABSTRACT Marine mammals are thought to have an energetically expensive lifestyle because endothermy is costly in marine environments. However, measurements of total energy...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (13): jeb234567.
Published: 5 July 2021
... of difficulty and velocity. Here, we assessed the effects of velocity, route difficulty and anatomical variation on the energetic cost of climbing within humans. Twelve experienced rock climbers climbed on an indoor wall over a range of difficulty levels and velocities, with energy expenditure measured via...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (8): jeb235846.
Published: 26 April 2021
... accompanying reproduction remains equivocal. In fact, many studies have found no difference in DEE between reproducing and non-reproducing females. One of the hypotheses explaining the lack of difference is the concept of an ‘energetic ceiling’. However, it is unclear whether the lack of increase in energy...
Includes: Supplementary data