How is natural selection related to the concept of niche?

Question

Niches are restricted because neighboring species with similar ecological characteristics prevent expansion into other niches or even narrow down niches. This continual struggle for existence is an important assumption of natural selection.

Isaac Ayoub · Accepted Answer

A niche is both an opportunity and a selector in natural selection.

If species variations are random, a niche environment might offer a special benefit to a certain variation, making it possible for it to take over as the dominant form of the organism there. A niche could serve as a "dead end" for further expansion or as a "springboard" for adaptation to a larger ecosphere.

Vivian Ahern · Answer

undefined Natural selection is related to the concept of niche because organisms within a niche are subject to selective pressures that can influence their survival and reproduction. Over time, individuals with traits that are better suited to their specific niche are more likely to survive and reproduce, leading to the propagation of those advantageous traits within the population. This process is a fundamental mechanism of natural selection, as it results in the adaptation of organisms to their respective niches over successive generations.