What is the main outcome of competitive exclusion?

The main outcome of competitive exclusion is the extinction of one species. This concept, derived from the competitive exclusion principle, states that two species competing for the same resources cannot coexist if the resources are limited. In such scenarios, one species will outcompete the other for those resources, leading to the decline and eventual local extinction of the less competitive species.

This principle highlights the importance of resource availability and niche differentiation in an ecosystem. When two species share the same niche and have similar needs, one will usually dominate, effectively excluding the other from that niche. This outcome emphasizes the intricate balance of ecosystems, showcasing how competition can shape community dynamics and biodiversity. The extinction of one species as a result of competitive exclusion can lead to changes in ecosystem structures and functions, impacting the overall biodiversity.