Which human-induced change results in increased competition caused by an initial increase in the number of organisms in a habitat?

Human-induced change refer to the change made by human to the environments

example of Some human-induced change that results in increased competition caused by an initial increase in the number of organism in a habitat are :
- Increasing the amount of livestock on the farm, in which the livestocks freely eat from the Grass of the farm
- Releasing snakes to annihilate rodents in agricultural farm

hope this helps