INTRODUCED SPECIES IN SINGAPORE: AN OVERVIEW

An overview of the invasive alien species situation in Singapore is presented. An updated checklist of introduced or alien animals in Singapore is provided; of the 142 species of invertebrates and vertebrates documented, more than 70% are considered established. A brief introduction and discussion of pertinent definitions and terminology for describing invasive alien species, with particular reference to Singapore, is included. In addition, important pathways for biological invasion into Singapore are highlighted, and legislation and institutional roles with respect to alien species issues in Singapore are summarized, featuring examples of management programmes. The article concludes by identifying areas emphasized in recently published alien species research in Singapore and knowledge gaps that need to be filled.