Rivers play an integral role in shaping ecosystems by providing essential habitats, connecting landscapes, and facilitating nutrient cycling. They serve as corridors for aquatic and terrestrial species, enabling migration and genetic exchange. Additionally, rivers influence surrounding landscapes through processes like erosion and sediment deposition, creating diverse environments. They also support numerous ecosystems, from wetlands to floodplains, contributing to overall biodiversity. Protecting river ecosystems is vital for maintaining ecological balance and supporting resources for human communities.