Banda Sea

South of Buru, the northern Banda Sea lies between the island shores of the Moluccas. Buru, Ambon and Seram frame the water to the north, their forested interiors contrasting with the open basin offshore. These islands lie within Wallacea, where species from Asia and Australasia coexist without either side of the archipelago ever having joined the two continents.

Buru and Seram each support distinct tropical moist forest ecoregions. This separation matters because the islands' terrestrial habitats are as varied as the sea between them. The Banda-Flores marine ecoregion, rich in reefs and deep water, connects those land margins to the wider Coral Triangle. Island channels also create many local maritime conditions rather than one uniform tropical sea.

The Banda Islands rise within these waters, and Gunung Api and Manuk remain active volcanoes. Their slopes show that the sea's calm appearance rests on continuing tectonic movement. Along the northern approach, forest, reef, deep water and volcanic landforms are packed into a comparatively short distance. This makes the waters south of Buru a meeting place for sharply different habitats and histories.