Nudibranch from Ambon, Indonesia

Ambon, Indonesia

Ambon Island lies off the south-west coast of the much larger Seram island. It is on the north side of the Banda Sea, part of a chain of volcanic isles that form a circle around the sea. It is 51 km (32 miles) in length, and is of very irregular shape, being almost divided into two. The south-eastern and smaller portion, a peninsula (called Leitimor) is united to the northern (Hitoe) by a narrow neck of land. Ambon City lies on the north-west of Leitimor, facing Hitoe, and has a safe harbor on Amboina Bay.

The highest mountains, Wawani (1100 m/3609 ft) and Salahutu (1225 m/4020 ft.), have hot springs and solfataras. They are volcanoes, and the mountains of the neighboring Uliasser islands, extinct volcanoes. Granite and serpentine rocks predominate, but the shores of Amboyna Bay are of chalk, and contain stalactite caves.

Wild areas of Ambon Island are covered by tropical rain forest, part of the Seram rain forests eco-region, together with neighboring Seram. Seram, Ambon, and most of Maluku are part of Wallacea, the group of Indonesian islands that are separated by deep water from both the Asian and Australian continents, and have never been linked to the continents by land.

As a result of this isolation, Ambon has few indigenous mammals; birds are more abundant. The insect diversity of the island, however, is rich, particularly in butterflies. Seashells are obtained in great numbers and variety. Tortoise-shell is also exported.