Interspecies competition significantly impacts biological communities as it influences population dynamics, community structure, and biodiversity. When species compete for limited resources such as food, water, and habitat, it can lead to resource partitioning, where species adapt to utilize different resources to coexist. This can enhance ecological diversity and resilience. In extreme cases, competition may lead to the decline or extinction of less competitive species, altering community composition. Understanding these dynamics is essential for managing ecosystems and conserving endangered species.