what is niche
1 The term niche is used to describe the role an organism or population plays within its community or ecosystem. 2  It encompasses all relationships that the organism (or population) has with its environment and with other organisms and populations in its environment.iche journalism is exactly that: journalism in a certain specific area, a niche. Niche journalism allows journalists to focus on their target audience. You see niche journa â¦ lism all over the Internet and television.