Examining the accuracy of trackways for predicting gait selection and speed of locomotion
From Springer Nature via Jisc Publications Router History: received 2020-03-11, accepted 2020-05-20, registration 2020-05-21, pub-electronic 2020-05-27, online 2020-05-27, collection 2020-12 Publication status: Published Funder: Biotechnology and Biological Sciences Research Council; doi: http://dx....
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ftchesteruniv:oai:chesterrep.openrepository.com:10034/624732 2023-05-15T15:14:25+02:00 Examining the accuracy of trackways for predicting gait selection and speed of locomotion Marmol-Guijarro, Andres Nudds, Robert Folkow, Lars Codd, Jonathan 2020-05-20 http://hdl.handle.net/10034/624732 https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363.pdf?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363_nlm.xml?sequence=3 en eng BioMed Central https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363.pdf?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363_nlm.xml?sequence=3 Frontiers in Zoology, volume 17, issue 1, page 17 http://hdl.handle.net/10034/624732 Licence for this article: http://creativecommons.org/licenses/by/4.0/ CC-BY eissn: 1742-9994 Research Gait Locomotion Arctic Biomechanics Snow Track Speed article 2020 ftchesteruniv 2022-03-02T19:58:28Z From Springer Nature via Jisc Publications Router History: received 2020-03-11, accepted 2020-05-20, registration 2020-05-21, pub-electronic 2020-05-27, online 2020-05-27, collection 2020-12 Publication status: Published Funder: Biotechnology and Biological Sciences Research Council; doi: http://dx.doi.org/10.13039/501100000268; Grant(s): BB/G011338/1 Funder: Secretaría de Educación Superior, Ciencia, Tecnología e Innovación; doi: http://dx.doi.org/10.13039/501100004299 Abstract: Background: Using Froude numbers (Fr) and relative stride length (stride length: hip height), trackways have been widely used to determine the speed and gait of an animal. This approach, however, is limited by the ability to estimate hip height accurately and by the lack of information related to the substrate properties when the tracks were made, in particular for extinct fauna. By studying the Svalbard ptarmigan moving on snow, we assessed the accuracy of trackway predictions from a species-specific model and two additional Fr based models by ground truthing data extracted from videos as the tracks were being made. Results: The species-specific model accounted for more than 60% of the variability in speed for walking and aerial running, but only accounted for 19% when grounded running, likely due to its stabilizing role while moving faster over a changing substrate. The error in speed estimated was 0–35% for all gaits when using the species-specific model, whereas Fr based estimates produced errors up to 55%. The highest errors were associated with the walking gait. The transition between pendular to bouncing gaits fell close to the estimates using relative stride length described for other extant vertebrates. Conversely, the transition from grounded to aerial running appears to be species specific and highly dependent on posture and substrate. Conclusion: Altogether, this study highlights that using trackways to derive predictions on the locomotor speed and gait, using stride length as the only predictor, are problematic as accurate predictions require information from the animal in question. Article in Journal/Newspaper Arctic Svalbard University of Chester: Chester Digital Repository Arctic Svalbard Frontiers in Zoology 17 1 |
institution |
Open Polar |
collection |
University of Chester: Chester Digital Repository |
op_collection_id |
ftchesteruniv |
language |
English |
topic |
Research Gait Locomotion Arctic Biomechanics Snow Track Speed |
spellingShingle |
Research Gait Locomotion Arctic Biomechanics Snow Track Speed Marmol-Guijarro, Andres Nudds, Robert Folkow, Lars Codd, Jonathan Examining the accuracy of trackways for predicting gait selection and speed of locomotion |
topic_facet |
Research Gait Locomotion Arctic Biomechanics Snow Track Speed |
description |
From Springer Nature via Jisc Publications Router History: received 2020-03-11, accepted 2020-05-20, registration 2020-05-21, pub-electronic 2020-05-27, online 2020-05-27, collection 2020-12 Publication status: Published Funder: Biotechnology and Biological Sciences Research Council; doi: http://dx.doi.org/10.13039/501100000268; Grant(s): BB/G011338/1 Funder: Secretaría de Educación Superior, Ciencia, Tecnología e Innovación; doi: http://dx.doi.org/10.13039/501100004299 Abstract: Background: Using Froude numbers (Fr) and relative stride length (stride length: hip height), trackways have been widely used to determine the speed and gait of an animal. This approach, however, is limited by the ability to estimate hip height accurately and by the lack of information related to the substrate properties when the tracks were made, in particular for extinct fauna. By studying the Svalbard ptarmigan moving on snow, we assessed the accuracy of trackway predictions from a species-specific model and two additional Fr based models by ground truthing data extracted from videos as the tracks were being made. Results: The species-specific model accounted for more than 60% of the variability in speed for walking and aerial running, but only accounted for 19% when grounded running, likely due to its stabilizing role while moving faster over a changing substrate. The error in speed estimated was 0–35% for all gaits when using the species-specific model, whereas Fr based estimates produced errors up to 55%. The highest errors were associated with the walking gait. The transition between pendular to bouncing gaits fell close to the estimates using relative stride length described for other extant vertebrates. Conversely, the transition from grounded to aerial running appears to be species specific and highly dependent on posture and substrate. Conclusion: Altogether, this study highlights that using trackways to derive predictions on the locomotor speed and gait, using stride length as the only predictor, are problematic as accurate predictions require information from the animal in question. |
format |
Article in Journal/Newspaper |
author |
Marmol-Guijarro, Andres Nudds, Robert Folkow, Lars Codd, Jonathan |
author_facet |
Marmol-Guijarro, Andres Nudds, Robert Folkow, Lars Codd, Jonathan |
author_sort |
Marmol-Guijarro, Andres |
title |
Examining the accuracy of trackways for predicting gait selection and speed of locomotion |
title_short |
Examining the accuracy of trackways for predicting gait selection and speed of locomotion |
title_full |
Examining the accuracy of trackways for predicting gait selection and speed of locomotion |
title_fullStr |
Examining the accuracy of trackways for predicting gait selection and speed of locomotion |
title_full_unstemmed |
Examining the accuracy of trackways for predicting gait selection and speed of locomotion |
title_sort |
examining the accuracy of trackways for predicting gait selection and speed of locomotion |
publisher |
BioMed Central |
publishDate |
2020 |
url |
http://hdl.handle.net/10034/624732 https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363.pdf?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363_nlm.xml?sequence=3 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Svalbard |
genre_facet |
Arctic Svalbard |
op_source |
eissn: 1742-9994 |
op_relation |
https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363.pdf?sequence=2 https://chesterrep.openrepository.com/bitstream/handle/10034/624732/12983_2020_Article_363_nlm.xml?sequence=3 Frontiers in Zoology, volume 17, issue 1, page 17 http://hdl.handle.net/10034/624732 |
op_rights |
Licence for this article: http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
container_title |
Frontiers in Zoology |
container_volume |
17 |
container_issue |
1 |
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