Understanding Genetic Drift, Bottleneck Effect, and Founder Effect Practice Test

Which of the following is true of the bottleneck effect?

An ecologist observes a population of snakes on an island for one month every year. After the eleventh month, he sees that the snake population has been decimated, and decides to wait for the snakes to repopulate before coming back for further observation. When he returns five years later, he finds a very homogenous looking population of snakes. What is the name of the effect he observed?