Answer: This is an example of OVERSHOOT.
Explanation: In ecology, overshoot can be defined simply as a situation whereby the population of a species exceeds its environment's carrying capacity. Usually, there are conditions that restrict growth, which limits instances of overshoot.
Overshoot occurs when the birthrate is really too higher than the death rate and therefore the resources available in the environment cannot support the ecosystem.
This company sheep population increased exponentially with limited resources in the environment thereby causing damage to the whole population. This here is an example of OVERSHOOT.