ABSTRACT
Nusa Tenggara Timur (NTT) Province in eastern Indonesia comprises the eastern Lesser Sunda Islands of Flores, Sumba, Roti, Savu, the western half of the island of Timor, and numerous smaller islands. The islands rise from the sea to altitudes of up to 2,500 m above sea level (asl) along central mountain ridges that are rugged and steep. Deep, eroded streams carry water from the mountains to wide, shallow rivers that flow along narrow plains to the sea. Most streams flow intermittently, raging after rains but without water for much of the year. The few big, permanent rivers flow strongly after rains and become trickles as the dry season progresses.
