Predator-prey interactions are vital to the stability of many ecosystems . Yet, few studies have considered how they are mediated due to substantial challenges in quantifying behavior over appropriate temporal and spatial scales. Here, we employ high-resolution sonar imaging to track the motion and interactions among predatory fish and their schooling prey in a natural environment. In particular, we address the relationship between predator attack behavior and the capacity for prey to respond both directly and through collective propagation of changes in velocity by group members (...) Our results highlight the importance of collective behavior to the strategies employed by both predators and prey under conditions of considerable informational constraints.
The Dynamics of Coordinated Group Hunting and Collective Information Transfer among Schooling Prey
Nils Olav Handegard, Kevin M. Boswell, Christos C. Ioannou, Simon P. Leblanc, Dag B. Tjøstheim, Iain D. Couzin
Current Biology, 07 June 2012