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Sean C Cadigan, Nathon A Smith, Te K Jones

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    Bats adjust their echolocation calls and hunting strategies based on prey movement predictability. Unpredictable prey prompts more frequent calls and delayed capture for successful hunting.

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    Area of Science:

    • Behavioral Ecology
    • Neuroethology
    • Bioacoustics

    Background:

    • Predator-prey interactions are crucial for survival.
    • Echolocating bats provide a model for studying sensory-motor control during hunting.
    • Understanding how motion predictability affects tracking is key.

    Purpose of the Study:

    • To investigate how short-term changes in target motion predictability impact bats' longer-term motor plans during prey tracking.
    • To characterize the influence of target motion predictability on bats' behavioral control.

    Main Methods:

    • Utilized a controlled prey motion paradigm with echolocating bats.
    • Applied computational methods to analyze target motion predictability and behavioral control.
    • Examined sonar call patterns and transitions between hunting phases.

    Main Results:

    • Bats increase sonar call rate when tracking unpredictable prey, indicating enhanced information gathering.
    • Target motion unpredictability delays the transition from tracking to capture phases.
    • Motor control changes appear sequentially, first in vocalization, then in auditory processing (ear motion).

    Conclusions:

    • Prey motion predictability significantly influences both immediate sonar control and long-term hunting strategies in bats.
    • Bats adapt their hunting behavior to optimize information acquisition for successful prey capture.
    • The sequential motor adjustments suggest a complex, ordered neural processing pathway for dynamic hunting scenarios.