Siti Nurhidayu Abu Bakar or “Ayu”, is a Senior Lecturer of Forest Hydrology at Faculty of Forestry, Universiti Putra Malaysia (UPM) and Head of Forest Ecosystem Services Programme, Institute of Tropical Forests and Forest Products (INTROP), UPM. She obtained a Bachelor and Masters Degree in Civil Engineering from Universiti Teknologi Malaysia, and PhD in Forest Hydrology from Lancaster Environment Centre, Lancaster University, UK. She served UPM’s Faculty of Forestry since 2006 as a tutor, and became a Senior Lecturer since 2012. She has taught several courses including Forest Engineering, Forest Roads, Catchment Management and Forest Hydrology Techniques for Bachelor of Forest Science students. She obtained research grants from UPM for Hydrology Quantification in the Klang Valley, Flood Mitigation in Kelantan from Ministry of Education, Malaysia, Hydrology Quantification in Oil Palm/Forest Catchments in Langat-HELP River Basin from Humid Tropic Centre-UNESCO and Forest Adaptation on Climate Change project from UBC/APFNET. She also involved in various research projects including; CBA for Central Forest Spine; Biodiversity evaluation within Reservoir area; Flood Damage Quantification in Kota Marudu, Sabahp; Mangrove Hydrology Index establishment, Matang, Perak; etc. She is also actively involved as an instructor in various environmental education programmes with public, university and school students since 2011 for Water Education and River Conservation Modules.