The role of the ecological niche in an ecosystem is to define how species interact with their environment and utilize resources. An ecological niche encompasses an organism’s habitat, its role in the food web, and its relationships with other species. It is crucial for maintaining biodiversity and ecosystem stability. Different species can coexist by occupying unique niches or by resource partitioning, thereby reducing competition. Understanding ecological niches helps in conservation efforts, as preserving them can aid in sustaining species diversity and ecosystem function.