Globally, Indonesia is the most important country for tropical hornbill conservation. In Indonesia, the second largest island of Sumatra contains the richest diversity of hornbills. Southern Sumatra includes Lampung Province, which has lost approximately 44% of the forest cover. Average forest size has declined by a factor of four, and the number of forest fragments has doubled. This forest loss is severely reducing habitat for hornbills and other wildlife. Because of this major threat, understanding the effect of anthropogenic habitat change on distribution and occupancy patterns of hornbills is a prerequisite to their habitat conservation and management. I obtained presence and absence information on the Sumatran hornbill (Bucerotidae) using distance sampling in 18 forest patches across 3.5 million ha of Lampung province. I identified habitat relationships and resource selection among sites to describe the best habitat parameters and to predict hornbill occupancy in a fragmented landscape. I investigated the relationship between Sumatran hornbill occupancy and landscape metrics relative to the possibility of extinction and colonization probability in fragmented landscapes.

• M.S Candidate

• Y. Hadiprakarsa (Yoki)

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