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Keywords: Performance
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Journal Articles
J Exp Biol (2022) 225 (10): jeb242955.
Published: 18 May 2022
... individuals adopted each antipredator strategy, and then quantified the performance capacities underlying each strategy. In particular, we measured bite force as a determinant for aggression, sprint velocity for fleeing, and degree of color change for crypsis. We found that aggression was predicted by traits...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (9): jeb243802.
Published: 5 May 2022
... conclude that recruitment of larvae and early juveniles to nursery areas might decrease under OAW conditions but individuals reaching juvenile phase might benefit from increased performance at higher temperatures. BL and WM were measured approximately every 30 days in F0 and every 3–4 weeks in F1...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243376.
Published: 8 March 2022
... and fluoromicrometry studies found nearly all the axial musculature (over 80%) provides effectively all (90–99%) of the power for high-performance suction feeding. The dominance of axial power suggests a new framework for studying the musculoskeletal biomechanics of fishes: the form and function of axial muscles...
Journal Articles
J Exp Biol (2022) 225 (Suppl_1): jeb243351.
Published: 8 March 2022
... and contract muscle, sometimes at the expense of other activities or expression of traits. Nevertheless, convergent pathways have also evolved to deal with critical trade-offs that are necessary to survive ubiquitous environmental challenges. We discuss how whole-animal performance traits, such as locomotion...
Journal Articles
J Exp Biol (2021) 224 (21): jeb242903.
Published: 29 October 2021
..., we measured muscle activity and shortening in bluegill sunfish ( Lepomis macrochirus ) using electromyography and sonomicrometry. We found that sunfish recruit epaxial regions in a dorsal-to-ventral manner to increase feeding performance, such that high-performance feeding activates all the epaxial...
Journal Articles
J Exp Biol (2021) 224 (14): jeb242506.
Published: 23 July 2021
...Oluwaseun M. Ajayi; J. D. Gantz; Geoffrey Finch; Richard E. Lee, Jr; David L. Denlinger; Joshua B. Benoit ABSTRACT Rapid hardening is a process that quickly improves an animal's performance following exposure to potentially damaging stress. In this study of the Antarctic midge, Belgica antarctica...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (Suppl_1): jeb238360.
Published: 24 February 2021
... drivers such as acidification and oxygen loss in aquatic environments or excess humidity or drought on land. Experimental findings support the hypothesis that the width and temperature range of thermal performance curves relate to biogeographical range. Current warming causes range shifts, hypothesized...
Journal Articles
J Exp Biol (2021) 224 (1): jeb228973.
Published: 4 January 2021
... of elevating tissue temperature to increase the rate of chemical processes. Yet, movement performance that is robust to changes in body temperature has been observed in numerous species. This thermally robust performance appears exceptional in light of the well-documented effects of temperature on muscle...
Journal Articles
J Exp Biol (2020) 223 (20): jeb227801.
Published: 27 October 2020
... of mitochondrial processes, as mitochondria play a crucial role in animals as the primary site of ATP production. Conventional measures of mitochondrial performance suggest that these organelles can function at temperatures much higher than those that limit whole-organism function, suggesting...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (20): jeb232132.
Published: 16 October 2020
...Andrew Z. Wang; Jerry F. Husak ABSTRACT Limited resources must be partitioned among traits that enhance fitness. Although survival-related traits often trade off with reproduction, survival-related traits themselves may trade off with each other under energy limitations. Whole-organism performance...
Journal Articles
J Exp Biol (2020) 223 (17): jeb211706.
Published: 6 September 2020
... of attachment (contact area) was investigated. This study found that many salamander species can cling fully inverted using only a portion of their ventral surface area to attach. Salamanders fall into three functional groups based on mass and maximum cling angle: (1) high-performing, very small salamanders, (2...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (15): jeb218503.
Published: 3 August 2020
.... In order to mitigate the impacts of invasive predators on native species in different landscapes, we must understand how the prey's morphology and performance determine their survival. Here, we evaluated how phenotypic traits related to escape performance predict the probability of survival...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (12): jeb221382.
Published: 16 June 2020
...Nadia Vicenzi; Alejandro Laspiur; Paola L. Sassi; Rubén Massarelli; John Krenz; Nora R. Ibargüengoytía ABSTRACT In ectotherms, temperature exerts a strong influence on the performance of physiological and ecological traits. One approach to understanding the impact of rising temperatures on animals...
Journal Articles
J Exp Biol (2020) 223 (6): jeb217570.
Published: 19 March 2020
... then investigated how this variation in feeding kinematics could explain scale-biting performance by measuring bite size (surface area removed) from standardized gelatin cubes. We found that a combination of larger peak gape and more obtuse lower jaw and suspensorium angles resulted in approximately 40% more...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (13): jeb203877.
Published: 10 July 2019
...Nancy A. Curtin; Roger C. Woledge; Timothy G. West; David Goodwin; Richard J. Piercy; Alan M. Wilson ABSTRACT Active muscle performs various mechanical functions during locomotion: work output during shortening, work absorption when resisting (but not preventing) lengthening, and impulse (force...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (12): jeb204867.
Published: 17 June 2019
...Samuel Ginot; Anthony Herrel; Julien Claude; Lionel Hautier ABSTRACT Morphological traits are frequently used as proxies for functional outputs such as bite force performance. This allows researchers to infer and interpret the impacts of functional variation, notably in adaptive terms. Despite...
Journal Articles
J Exp Biol (2019) 222 (6): jeb189654.
Published: 21 March 2019
...Christofer J. Clemente; Taylor J. M. Dick; Rebecca Wheatley; Joshua Gaschk; Ami Fadhillah Amir Abdul Nasir; Skye F. Cameron; Robbie S. Wilson ABSTRACT Characterisation of an organism's performance in different habitats provides insight into the conditions that allow it to survive and reproduce...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (5): jeb188805.
Published: 1 March 2019
... of the limbs is related to variation in locomotor performance. Although these studies have suggested direct relations between sprint speed and hindlimb morphology, few quantitative data exist. Consequently, it remains unclear whether selection acts in limb segment lengths, overall muscle mass or muscle...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (2): jeb190165.
Published: 16 January 2019
... be extended in some cases. High-predation populations lack this integration, which may be the result of direct selection or constraints imposed by selection on locomotion. As guppies invade new habitats they may be evolving a new, integrated performance phenotype from a non-integrated ancestor. * Author...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (18): jeb178236.
Published: 20 September 2018
... change. The emergence of non-invasive corticosterone (CORT) assays allows us to rapidly assess physiological responses to environmental change on a large scale. We lack, however, a basic understanding of how temperature affects CORT, and whether temperature and CORT interactively affect performance. Here...