In biology, a niche is the role a species plays in its ecosystem—basically, how it lives, what it uses, and how it interacts with other organisms and its environment. It includes things like food, habitat conditions, predators, competition, and the species’ effect on the ecosystem.

Quick Scoop

A niche is not just where an organism lives ; that is its habitat. A niche is more like the organism’s “job” or way of life in nature.

Key idea

  • Habitat = the place where an organism lives.
  • Niche = the organism’s role, resources it uses, and interactions it has.
  • A species can have a fundamental niche , which is the full range of conditions it could live in, and a realized niche , which is the part it actually uses because of competition and other limits.

Simple example

A bee’s niche includes:

  • getting nectar and pollen,
  • pollinating flowers,
  • living in conditions where flowers are available,
  • avoiding predators and competing for resources.

If you want, I can also give you a 1-line exam answer or a difference between niche and habitat in table form.