Answer:
As the city council of Jacksonville, Montana is thinking of turning grassy areas into large ponds which is not acceptable by the farmers because they are concerned it will affect the sheep population. Farmers are right because grassy areas form a habitat for the sheep population in that area and make a balance between predators and prey.
As we can see the data of the relationship between predators and prey, growth in grassy areas in years maintains a balance of predators and prey where wolfs are not harming many sheep but if grassy areas will be detroyed, it will be easy for wolfs to dominate sheep population.