The ecology of the non-native red-eared sliders and their potential impacts on the native fauna of Singapore

Abstract

Red-eared sliders &40;Trachemys scripta elegans&41; have been considered pests worldwide due to the pet trade. However, nothing is known of this species&39; ability to adapt to a tropical equatorial climate. This study examines aspects of the red-eared slider&39;s ecology in Singapore. Populations were denser at ponds than at reservoirs and the species was found to be an opportunistic omnivore, exhibiting diurnal activity typical of this species. However it appears to be capable of modifying its reproductive strategy to produce smaller clutches of eggs at a higher frequency throughout the year. Despite being educated on the origin of this species, release of red- eared sliders is widely accepted and practiced among Singaporeans. The results of these studies indicate that the red-eared slider fulfills many criteria that characterise a successful invasive species. A framework was developed for the management of populations of red-eared sliders in Singapore and for application in neighbouring countries.