What question did this study set out to answer?

To examine the evolutionary diversification and motor control mechanisms underlying feeding kinematics and biomechanics across amphibian lineages.

December 1, 2001American Zoologist

The Evolution of the Motor Control of Feeding in Amphibians

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Authors

SDStephen M. DebanUniversity of South Florida JOJames C. O’ReillyOhio University KNKiisa C. NishikawaUniversity of North Carolina at Chapel Hill

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Implication

Comparative evolutionary analysis reveals diverse motor control strategies during feeding across amphibians, suggesting that movement decoupling enhances strike accuracy.

Key Points

To examine the evolutionary diversification and motor control mechanisms underlying feeding kinematics and biomechanics across amphibian lineages.
Synthesized comparative kinematic, biomechanical, and motor control data across diverse amphibian taxa, including salamanders, toads, and frogs.
Evaluated functional trade-offs between tight tongue-jaw coordination and movement decoupling relative to strike accuracy and environmental modulation.
Stereotypy is the exception rather than the rule in amphibians, with ancestral lissamphibians possessing capacity for feeding modulation.
Motor control evolved along two trajectories: enhanced modulation via feedback or feed-forward mechanisms, versus biomechanically constrained movements requiring rigid coordination.
Decoupling tongue and jaw movements associates with higher accuracy in hydrostatic frogs and ballistic salamanders, whereas complex multi-joint coordination limits accuracy in ballistic frogs.

Cite This Study

Deban et al. (2001) studied this question.

synapsesocial.com/papers/6a9aa428899d9bcd85016e8d https://doi.org/10.1093/icb/41.6.1280

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Implication

Comparative evolutionary analysis reveals diverse motor control strategies during feeding across amphibians, suggesting that movement decoupling enhances strike accuracy.

The Evolution of the Motor Control of Feeding in Amphibians

Discussion

Member takes

Implication

Key Points

Cite This Study

The Evolution of the Motor Control of Feeding in Amphibians

Discussion

Member takes

Implication

Key Points

Cite This Study

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