The study looked at how seabirds on Malpelo Island in Colombia help transfer nutrients from the ocean to the land. By analyzing samples collected over several years, researchers found that the seabirds play a crucial role in connecting the marine and terrestrial ecosystems. The seabirds bring nutrients like guano, chick carcasses, and eggs from the ocean to the island, which helps support the island's ecosystem. The study used stable isotopes to show that there is a strong link between the two environments, with a significant overlap in the types of food sources used by animals on land and in the sea. This highlights the importance of conserving these seabirds to maintain the balance of the island's ecosystem.