Blar i forfatter "Codd, Jonathan"

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    • Does posture explain the kinematic differences in a grounded running gait between male and female Svalbard rock ptarmigan (Lagopus muta hyperborea) moving on snow? 

      Marmol-Guijarro, Andres; Nudds, Robert; Folkow, Lars; Lees, John; Codd, Jonathan (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-05)
      The majority of locomotor research is conducted on treadmills and few studies attempt to understand the differences between this and animals moving in the wild. For example, animals may adjust their gait kinematics or limb posture, to a more compliant limb, to increase stability of locomotion to prevent limb failure or falling on different substrates. Here, using video recordings, we compared locomotor ...

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

      Marmol-Guijarro, Andres; Nudds, Robert; Folkow, Lars; Codd, Jonathan (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-27)
      Using Froude numbers (<i>Fr</i>) 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 ...