Maria Kristina Paler, School of Environmental Science and Management, University of the Philippines Los Baños, Los Baños, Laguna, Philippines; University of San Carlos, Department of Biology, Cebu City, Philippines, Clara Leistenschneider, Institute Man-Society-Environment, University of Basel, Switzerland, Department of Environmental Sciences, Basel, Switzerland, Veronica Migo, College of Engineering & Agro-Industrial Technology, University of the Philippines Los Baños, Department of Chemical Engineering, Los Baños, Laguna, Philippines and Patricia Burkhardt-Holm, Institute Man-Society-Environment, University of Basel, Department of Environmental Sciences, Basel, Switzerland