**7. Acknowledgements**

Part of this research on the forest environment was funded by a project on Trail Degradation at Bukit Timah Nature Reserve, NIE RP 19/02 KC. Many of the ground data could not have been collected without the help of students from various courses at National Institute of Education, Nanyang Technological University, Singapore. Support from National Parks Board, Singapore and help offered by the officers at Bukit Timah Nature Reserve for conducting this research are acknowledged. Visitors to the forest who helped by giving their views are also acknowledged.
