Dynamic Morphospaces for Animal Locomotion: A Case Study in Bird Flight
Lydia A France1,2, Christina Harvey, Graham K Taylor1,2
1Department of Biology, University of Oxford, South Parks Road, Oxford OX1 3EL, UK.
Integrative and Comparative Biology
|June 4, 2026
Summary
This study introduces kinematic morphospaces to analyze animal locomotion, revealing coordinated movement patterns. These methods enable comparing diverse gaits and inform bio-inspired engineering designs.
Area of Science:
- Evolutionary biology
- Biomechanics
- Comparative morphology
Background:
- Morphospaces map biological shapes in geometric spaces, showing diversity concentrates on key axes.
- Understanding animal locomotion requires integrating form and dynamic behavior.
Purpose of the Study:
- To extend the morphospace concept from static form to dynamic animal locomotion.
- To provide a framework for describing, comparing, and translating locomotion across species.
- To connect evolutionary morphology with locomotor biomechanics and bio-inspired design.
Main Methods:
- Constructing kinematic morphospaces from landmark data to create a shared coordinate system.
- Utilizing Dynamic Mode Decomposition to analyze the temporal sequencing of shape changes.
- Applying these methods to avian flight as a case study.
Main Results:
- Kinematic morphospaces facilitate dimensionality reduction, reconstruction, and projection of movement data.
- The framework allows for formal comparison of locomotor subspaces across individuals and species.
- Avian flight data demonstrates the utility of morphospaces in understanding complex movements.
Conclusions:
- Extending morphospaces to behavior offers a principled approach to animal locomotion analysis.
- This framework bridges evolutionary biology and biomechanics, aiding in understanding movement diversity.
- Biological morphospaces can serve as a foundation for bio-informed engineering design.
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