A niche encompasses:
* What the organism eats: Its food source and how it obtains it.
* Where it lives: Its habitat and preferred location within that habitat.
* How it interacts with other species: Its relationships with predators, prey, competitors, and symbionts.
* Its impact on the environment: How it influences the physical and chemical conditions of its habitat.
In essence, a niche is the organism's "job" within the ecosystem.
