Stereotypy, flexibility and coordination: key concepts in behavioral functional morphology

Area of Science:

• Functional morphology
• Animal behavior
• Biomechanics

Background:

• Animal movement and motor control are key areas in functional morphology.
• Current literature lacks a universal terminology to describe variability in animal behavior and motor control.
• Existing terms can be ambiguous, leading to confusion between low variability and inability to adapt.

Purpose of the Study:

• To introduce and define precise terminology for describing animal behavior variability.
• To propose 'stereotypy' for low behavioral variability and 'flexibility' for adaptability.
• To clarify the distinction between stereotypy and flexibility, and their relationship with coordination.

Main Methods:

• Conceptual analysis and definition of terms.
• Discussion of existing literature in functional morphology.
• Examples illustrating the application of proposed terms.

Main Results:

• Proposed definition: Stereotypy quantifies behavioral variability under consistent conditions.
• Proposed definition: Flexibility quantifies the ability to alter behavior across different conditions.
• Demonstrated that stereotypy and flexibility are not necessarily correlated and can apply independently to coordination.

Conclusions:

• Clear definitions of stereotypy, flexibility, and coordination enhance scientific communication in functional morphology.
• Distinguishing between low variability (stereotypy) and inflexibility is crucial.
• These terms can illuminate differences in behavioral performance and coordination across taxa.