Q: Imagine a community with the following 5 trophic levels: plants, crickets, mice, snakes, and hawks. Predict would happen if more hawks entered the community through immigration. Explain your reasoning. You can describe more than one possible outcome if you wish.
So if there were plants, crickets, mice and snakes living in one area, then hawks migrate into the community, a lot of things would happen.
First of all, hawkes can eat almost anything: mice, moles, rabbits, rats, owls, lizards, snakes, frogs, bats, fish, toads, squirrels, etc.
So the hawks will eat the snakes first, and when until most of the population of snakes is gone, there will be no more.
So then the hawks will eat the mice and the crickets. And when there is nothing else to hunt down, the hawk will move on to another habitat. Which will let the population of snakes, mice, and crickets, to grow.
This is only one example of what would happen if hawks migrated into the area, there are many other possibilities, of course. But this is what I think what would happen.