Refer to the figure below, and then answer the following question(s).

-The graph indicated by a "2" demonstrates which principle of community ecology?

Question

Refer to the figure below, and then answer the following question(s).
 
-The graph indicated by a "2" demonstrates which principle of community ecology?

Quizplus · Accepted Answer

The graph indicated by a "2" shows the principle of competitive exclusion, which states that two species cannot coexist indefinitely in the same habitat if their niches (the specific roles and resources they require) are identical. The graph shows how the population of one species (in this case, the darker line) declines to extinction when it competes with another species (the lighter line) for the same resources.

Refer to the Figure Below, and Then Answer the Following