Skittering locomotion in cricket frogs: a form of porpoising.
| Autor: | Weiss T; Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061, USA., Gillis GB; Department of Biology, Mount Holyoke College, South Hadley, MA 01075, USA., Van Mullekom J; Department of Statistics, Virginia Tech, Blacksburg, VA 24061, USA., Socha JJ; Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24060, USA. |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of experimental biology [J Exp Biol] 2024 Nov 15; Vol. 227 (22). Date of Electronic Publication: 2024 Nov 15. |
| DOI: | 10.1242/jeb.249403 |
| Abstrakt: | Multiple species of frogs in the Ranidae family have been observed to 'skitter' across the water surface, but little is understood about the biomechanical or physical mechanisms that underlie this behavior. All documented descriptions are anecdotal, asserting simply that the frogs can cross the water surface without sinking. To study this form of interfacial locomotion, we recorded high-speed video of the northern cricket frog Acris crepitans and quantified its kinematics. We also compared its semi-aquatic behavior with the frogs' terrestrial locomotion. Contrary to expectations based on anecdotal knowledge, we found that cricket frogs do not maintain an above-surface position throughout the locomotor cycle. Instead, the frogs are completely submerged during both the launching and landing phase of a jump cycle, similar to porpoising in other animals. It is possible that leg-retraction time constrains these frogs from performing true surface-only locomotion. Competing Interests: Competing interests The authors declare no competing or financial interests. (© 2024. Published by The Company of Biologists Ltd.) |
| Databáze: | MEDLINE |
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