Natural reserves play a crucial role in preserving biodiversity by providing protected spaces for various species to thrive undisturbed. They help maintain healthy ecosystems and support essential processes such as pollination, water purification, and climate regulation. Additionally, natural reserves serve as valuable sites for scientific research and education, promoting awareness of conservation needs. By protecting habitats from development and degradation, reserves contribute to the long-term survival of endangered species and help maintain genetic diversity, which is essential for overall ecosystem resilience.