IslandLifeData: A global cross-realm database of species occurrences and functional traits across oceanic archipelagos

IslandLifeData is a standardized global database of species occurrences, functional traits, and environmental descriptors for plants, birds, corals, and reef fishes across 19 oceanic archipelagos and 133 islands worldwide. The database includes 8,371 native species and integrates taxonomic and functional information with contemporary and historical island characteristics, including area, age, isolation, climate, and Last Glacial Maximum connectivity. By bringing together terrestrial and marine biodiversity data within a common framework, IslandLifeData supports comparative analyses of biodiversity patterns, species turnover, functional diversity, dispersal, and community assembly across oceanic islands.