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Keywords: Energetics
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Journal Articles
J Exp Biol (2022) 225 (18): jeb244755.
Published: 28 September 2022
.... Locomotion Energetics Biomechanics Spring–mass model McCamish Parkinson's Disease Innovation Program For decades, biomechanists and physiologists have sought to link the mechanics of running and hopping with the corresponding metabolic energy expenditure. One prevailing approach...
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
J Exp Biol (2022) 225 (15): jeb244471.
Published: 11 August 2022
... by The Company of Biologists Ltd 2022 Summary: A simple slope method reveals that 4 min of walking at speeds of 0.50–1.75 m s −1 is the minimum time required to produce an accurate net cost of transport curve. Metabolic power Metabolic rate Steady-state metabolism Energetics...
Journal Articles
J Exp Biol (2022) 225 (7): jeb242994.
Published: 6 April 2022
... little energy to sustain themselves under natural conditions. These data provide the first characterization of the energetics and consumer role of this vulnerable and understudied species in the wild, which is essential given growing pressures from climate change and expanding commercial fisheries...
Includes: Supplementary data
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
... that the simple models used here cannot be scaled down and used to adequately characterize a child's walking mechanics and energetics. The implications from this work are worth further consideration because simple models form the basis for more complex theoretical and computational models and aid in the design...
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
Journal Articles
J Exp Biol (2021) 224 (8): jeb238832.
Published: 16 April 2021
... 2021 © 2021. Published by The Company of Biologists Ltd 2021 Summary: Experiments demonstrate that tool type, nest-substrate presence and speed all affect the energetics of avian egg puncture in a naturalistic setting. Energetics Egg Peck Puncture Nest Obligate brood parasite...
Journal Articles
J Exp Biol (2021) 224 (6): jeb241083.
Published: 30 March 2021
... reveals inherent similarities in travel between grizzly bears and humans, increasing the risk of encounters on shared landscapes. Energetics Ursus arctos , GPS Movement ecology Locomotion Greater Yellowstone Ecosystem Energy is a limiting factor for many species of wildlife ( Parker et...
Journal Articles
J Exp Biol (2020) 223 (23): jeb216119.
Published: 4 December 2020
... as carrying loads at the waist, despite the expectation that swinging a mass about a limb should be much more costly. Arm swing Metabolic cost Energetics Locomotion Biomechanics It is quite common for animals to carry loads, but the metabolic rate associated with such activities will depend...
Journal Articles
J Exp Biol (2020) 223 (22): jeb233072.
Published: 19 November 2020
... Summary: Presentation of a method for the quantification of O 2 respiration rate in the tardigrades Richtersius coronifer and Macrobiotus macrocalix using microrespirometry. Energetics O 2 respiration rate Metabolism Tardigrada Semi-terrestrial and tidal tardigrades have attracted...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (16): jeb222703.
Published: 24 August 2020
... shape). First, we investigated whether a behavioral choice could explain the shells used in sites with different wave action. Then, we experimentally tested whether the shells most frequently used in sites with different wave action reduce the energetic cost of coping with water flow. Metabolic rate...
Journal Articles
J Exp Biol (2020) 223 (5): jeb219378.
Published: 6 March 2020
... temperature rise with the heat. Water loss Metabolism Energetics Thermal tolerance Pseudocheiridae Climate change As the world's climates warm, heatwaves are predicted to increase in intensity, frequency and duration ( Cowan et al., 2014 ; IPCC, 2013 ; Meehl and Tebaldi, 2004 ). Although...
Journal Articles
J Exp Biol (2019) 222 (24): jeb198226.
Published: 18 December 2019
... squid in an experimental environment enables development of techniques for classifying and quantifying short-term behavioral and long-term organismal activity patterns. Persistent monitoring Gait Movement patterns Energetics Biotelemetry Squid are diverse and ecologically important...
Journal Articles
J Exp Biol (2019) 222 (24): jeb208504.
Published: 12 December 2019
... but that they might mobilize fat stores at the onset of the breeding season to satisfy the energetic demands of reproduction and/or to decrease costs associated with larger fat stores, such as increased predation risk. * Author for correspondence ( rrimbach@gmail.com ) Competing interests The authors...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (21): jeb212563.
Published: 8 November 2019
..., the most energetically expensive mode of locomotion. As uninsulated appendages, bird bills present a potential avenue for efficient heat dissipation. Puffins possess large bills and are members of the bird family with the highest known flight cost. Here, we used infrared thermography to test whether wild...
Includes: Supplementary data