What behavioral modification technique did Paul use to deter a bear from visiting campsites?

The use of motion sensors with lights as a behavioral modification technique to deter bears from visiting campsites is particularly effective because it leverages the natural instincts of bears. Bears are generally wary of human activity and unfamiliar stimuli. The sudden activation of lights when a bear approaches a campsite can startle the animal, creating a negative experience associated with that location.

This method effectively creates an environment that is less inviting to bears, as they tend to avoid areas where they feel threatened or surprised. By combining the element of surprise with illumination, motion sensors can effectively disrupt a bear's natural exploratory behavior, encouraging them to steer clear of campsites in the future.

The use of light as a deterrent is often more successful than other methods that might inadvertently encourage bears in their foraging behaviors, such as food incentives or even noises. Additionally, compared to practices like trapping and relocation, which can be logistically challenging and stressful for the bear, motion sensors with lights provide a humane and preventative solution to minimizing human-bear interactions at campsites.