Examining the accuracy of trackways for predicting gait selection and speed of locomotion

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 substrat...

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Bibliographic Details
Published in:Frontiers in Zoology
Main Authors: Marmol-Guijarro, Andres, Nudds, Robert, Folkow, Lars, Codd, Jonathan
Format: Article in Journal/Newspaper
Language:English
Published: Springer Nature 2020
Subjects:
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488
Svalbard
Online Access:https://hdl.handle.net/10037/20224
https://doi.org/10.1186/s12983-020-00363-z
Description
Summary: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.

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