An ecological niche is the place of a given organism within its ecosystem. A niche consist of limited resources such as food, shelter, space, light, desired temperatures, moisture for the organism to survive.
Two or more species of organisms may have similar basic needs and occupy the same niche. When different species population occupy the same niche, they compete for these limited natural resources.
Competition occurs when 2 or more organisms or populations in a community rely or need similar limiting resources.
