You are studying the intertidal zone of a previously unstudied island. You find three species of barnacles on the rocks. Species A is most abundant in the upper intertidal zone, Species B in the middle intertidal, and Species C in the lower intertidal. You conduct three exclusion experiments: You find multiple rock-faces of the same size in all three areas (upper, middle, and lower), and exclude all but Species A from the first group, all but Species B from the second group, and all but Species C from the third group. These exclusions are maintained for two months, and then you count the number of individuals present in each area on each set of rocks. Based on the data below, what can you conclude?