Geraldine Raphaela Joseph





I am a fourth year student in NUS. I am currently working on my final year project, which aims to elucidate the preferred artificial micro breeding habitat of Kalophrynus pleurostigma (black-spotted sticky frog) in Bukit Timah Nature Reserve, Singapore. This is a continuation of a previous honours student’s (Teo Yea Tian) work, who attempted to see if Kalophrynus pleurostigma would take to the artificial structures that she had introduced in the hopes of enriching their breeding habitat. The success of her project meant that this species is receptive to artificial structures that could be used to aid in its conservation.


Some of the main problems faced during her project were the predation of tadpoles by dragonfly nymphs and the displacement of set-ups by thirsty macaques. Besides attempting to address these problems, I am trying to determine the preferred surface area and depth of artificial structures for Kalophrynus pleurostigma. I was thrilled when I found tadpoles and eggs in my set-ups recently. I hope that the frogs will continue to utilise my set-ups and that their numbers will increase in time to come.