  When faced with an imminent risk of predation, many animals react to escape
consumption. Antipredator strategies are performed by individuals acting as a
group to intimidate predators and minimize the damage when attacked. We study
the antipredator prey response in spatial tritrophic systems with cyclic
species dominance using the rock-paper-scissors game. The impact of the
antipredator behavior is local, with the predation probability reducing
exponentially with the number of preys in the predator's neighborhood. In
contrast to the standard Lotka-Volterra implementation of the
rock-paper-scissors model, where no spiral waves appear, our outcomes show that
the antipredator behavior leads to spiral patterns from random initial
conditions. The results show that the predation risk decreases exponentially
with the level of antipredator strength. Finally, we investigate the
coexistence probability and verify that antipredator behavior may jeopardize
biodiversity for high mobility. Our findings may help biologists to understand
ecosystems formed by species whose individuals behave strategically to resist
predation.
