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Rethinking Negative Reinforcement in Zoo Animal Welfare: A Constructional Approach to Distance as a Reinforcer to
Barbara Heidenreich1, Annette Pedersen2
1Animal Training Fundamentals, Austin, TX 78745, USA.
Animals : an Open Access Journal From MDPI
|July 28, 2026
Summary
Negative reinforcement shaping effectively addresses fear and aggression in zoo animals by targeting the function of their behavior. This constructional approach offers a welfare-positive alternative for managing avoidance and promoting calm responses.
Area of Science:
- Animal Behavior
- Applied Behavior Analysis
- Zoo Animal Welfare
Background:
- Fear and aggression in zoo animals are often maintained by negative reinforcement, where behavior removes an aversive stimulus.
- Traditional methods like desensitization may be ineffective as they don't address the maintaining contingency.
- This can lead to incomplete behavioral change in zoo populations.
Purpose of the Study:
- To present negative reinforcement shaping as a functionally aligned, welfare-positive intervention within the constructional approach.
- To review empirical literature and address misconceptions regarding this behavioral intervention.
- To provide procedural guidance for applying negative reinforcement shaping.
Main Methods:
- Review of empirical literature on negative reinforcement shaping.
- Application of the constructional approach and contingency analysis.
- Case studies involving an Amur tiger and an orangutan at zoos.
Main Results:
- A tiger's aggressive responses were replaced with calm, affiliative behavior in 42 minutes, enabling positive reinforcement-based medical care.
- An orangutan's avoidance of a holding area was resolved in 15 minutes, leading to calm presence.
- Demonstrated successful application of negative reinforcement shaping for distancing-maintained behaviors.
Conclusions:
- Negative reinforcement shaping is a viable, function-based alternative for managing distancing-maintained behaviors in zoo animals.
- The constructional approach, emphasizing genuine choice, facilitates a transition to positive reinforcement.
- This method is accessible to practitioners with foundational behavior analysis training.
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