Wildlife is plentiful in the piney woods. there are over 100 species of birds and many small mammals, like cottontail rabbits and squirrels. what else must be included in the piney woods habitat to keep population in balance?

A predator species

Wildlife is plentiful in the piney woods and there are over 100 species of birds and many small mammals, like cottontails, rabbits and squirrels. All these species are relying for a same resource in order to maintain the population of these species a limiting factor is required which can cause elimination, extinction and migration of these species and limit their surplus population, hence maintain the balance of nature. A predator population can be a potent limiting factor here, as it can feed upon these species. Therefore, a predator species must be included in the piney woods habitat to keep population in balance.

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.