In Southeast Asia there is an old saying, "There is only one tiger to a hill." Explain this saying in terms of energy flow in ecosystems. explain why large predatory animals such as tigers and sharks are relatively rare.

The rate that would change would be the  searching efficiency/attack rate. there are only two other rates in this model: the  growth rate of prey, and the  predator or consumer mortality rate.the  searching efficiency/attack rate is what indicates how effectively can a predator capture its prey whether in the searching process or actual capturing/attacking process.