Introduction; David J.W. Lane.- The state and conservation of Southeast Asian biodiversity; Navjot S. Sodhi et al.- Why tropical island endemics are acutely susceptible to global change; Damien A. Fordham, Barry W. Brook.- Conservation of Borneo biodiversity: do small lowland parks have a role, or are big inland sanctuaries sufficient? Brunei as an example; Peter S. Ashton.- Re-assessing current extinction rates; Nigel E. Stork.- Late quaternary turnover of mammals in Borneo: the zooarchaeological record; Earl of Cranbrook.- Loss of biodiversity and ecosystem functioning in Indo-Malayan peat swamp forests; Catherine M. Yule.- Invasive aliens on tropical East Asian islands; Richard T. Corlett.- Restoration of a tropical island: Cousine Island, Seychelles; Michael J. Samways et al.- Ecological aspects of endemic plant populations on Klang Gates quartz ridge, a habitat island in Peninsular Malaysia; K.M. Wong et al.- Bats of Borneo: diversity, distributions and representation in protected areas; Matthew J. Struebig et al.- Research priorities for bat conservation in Southeast Asia: a consensus approach; Tigga Kingston.- Insect extinctions on a small denuded Bornean island; Navjot S. Sodhi et al.- Vulnerable island carnivores: the endangered endemic dwarf procyonids from Cozumel Island; Katherine W. McFadden et al.- Distribution of endemic and threatened herpetofauna in Mt. Malindang, Mindanao, Philippines; Olga M. Nuñeza et al.- Fuelling the biodiversity crisis: species loss of ground-dwelling forest ants in oil palm plantations in Sabah, Malaysia (Borneo); Carsten A. Brühl, Thomas Eltz.- Effects of habitat fragmentation on the movement patterns and dispersal ability of the brown spiny rat (Maxomys rajah) in the Planted Forest Zone of Sarawak, Eastern Malaysia; Antony Bruce Shadbolt, Roslina Ragai.- Non-volant small mammal community responses to fragmentation of kerangas forests in Brunei Darussalam; Joseph K. Charles, Bee Biaw Ang.- Population genetic evidence for the east-west division of the narrow-barred Spanish mackerel (Scomberomorus commerson, Perciformes: Teleostei) along Wallace\'s Line; Zohrah Haji Sulaiman, Jennifer R. Ovenden.- Case studies on decapods crustaceans from the Philippines reveal deep, steep underwater slopes as prima habitats for \'rare\' species; Jose Christopher E. Mendoza et al.- The integration of biodiversity conservation with oil and gas exploration in sensitive tropical environments; Claude-Henri Chaîneau et al.