1. Rushurgent Working Group, National Institute of Geological Sciences, College of Science, University of the Philippines, Diliman, Quezon City, Philippines
2. Institute of Renewable Natural Resources, University of the Philippines, Los Baños, Laguna, Philippines
3. Department of Environmental Science, School of Science and Engineering, Ateneo de Manila University, Quezon City, Philippines
4. School of Environmental Science and Management, University of the Philippines, Los Baños, Laguna, Philippines