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Related Experiment Videos

Play behavior: persistence, decrease, and energetic compensation during food shortage in deer fawns.

D Muller-Schwarze, B Stagge, C Muller-Schwarze

    Science (New York, N.Y.)
    |January 1, 1982
    PubMed
    Summary
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    White-tailed deer fawns maintained energy levels during a milk shortage by reducing play and increasing grazing. This highlights the adaptability of play behavior within a mammal

    Area of Science:

    • Ethology
    • Animal Behavior
    • Mammalian Ecology

    Background:

    • Play behavior is a significant component of activity budgets in young mammals.
    • Understanding how animals adjust behavior under nutritional stress is crucial for ecological studies.

    Purpose of the Study:

    • To investigate the behavioral responses of white-tailed deer fawns to a controlled milk shortage.
    • To determine if fawns could compensate energetically by altering their activity patterns.

    Main Methods:

    • Experimentally induced a 33% milk shortage in white-tailed deer fawns.
    • Monitored and quantified changes in play, general activity, and grazing behaviors.
    • Assessed energetic compensation through behavioral adjustments.

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    Main Results:

    • Fawns reduced play by 35% and general activity by 9%.
    • Grazing behavior increased by 62% in response to the milk shortage.
    • These adjustments led to nearly complete energetic compensation.

    Conclusions:

    • White-tailed deer fawns demonstrate significant behavioral plasticity to mitigate nutritional deficits.
    • Play behavior is a flexible component of the activity budget, adjustable under conditions of resource scarcity.
    • This study underscores the adaptive significance of play in mammals facing energetic challenges.