One species will be driven to extinction by the species that is the better competitor. It may be a better competitor because it is more successful at capturing food, because it can exist on less food, or because it is more resistant to disease. In Gause's experiment, P. aurelia was the better competitor because it was more resistant to the toxic chemical waste products that accumulated in the densely populated flask. An area is covered with a glacier for 2000 years. Due to global warming, the glacier melts.
Plants begin to grow where once it was barren.
This is an example of a. primary succession b. secondary succession Primary succession occurs in areas that were barren. The area where the ocean meets the land is called the intertidal zone. However, the space in this rocky intertidal zone is limited and competition among these species is fierce. Robert Paine, a professor at the University of Washington, asked what would happen if he took the starfish out of the intertidal zone. He isolated one area of the intertidal zone by putting up barriers.