The ecological niche is an important concept of community structure. The niche of any species includes all the attributes of an animal’s lifestyle: where it looks for food, what it eats, where it nests, and what conditions of temperature and moisture it requires. Theoretically, competition results when the niches of two species overlap.
Although the niche concept is dif?cult to quantity, it is valuable for perceiving community structure. It illustrates that community members tend to complement each other in resource use. They tend to partition resources rather than compete for them. The niche concept is also helpful for visualizing the role of an animal in the environment.