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Functional Morphology and Diversity$
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Les Watling and Martin Thiel

Print publication date: 2013

Print ISBN-13: 9780195398038

Published to Oxford Scholarship Online: May 2015

DOI: 10.1093/acprof:osobl/9780195398038.001.0001

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Appendage Diversity and Modes of Locomotion

Appendage Diversity and Modes of Locomotion


(p.261) 9 Appendage Diversity and Modes of Locomotion
Functional Morphology and Diversity

Jim Belanger

Oxford University Press

Crustaceans display a dazzling array of limb morphologies. In this review, I address this diversity from a functional perspective, by linking structure to behavioral demands. A general description of crustacean limb anatomy is provided, followed by a discussion of how the physical requirements of legged locomotion may have affected this. Factors considered include the dynamics of pedestrian locomotion, effects of animal size and speed, the differing demands of walking on land versus underwater, and the constraints of an exoskeleton. Patterns of limb coordination, along with the mechanisms producing these, are also briefly reviewed. Finally, the use of energy-conserving mechanisms such as tendon springs is considered.

Keywords:   crustaceans, Crustacea, limb morphology, limb anatomy, locomotion, limb coordination, tendon springs

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