1. Department of Landscape Architecture, Faculty of Agriculture, IPB University (Bogor Agricultural University), Bogor 16680, Indonesia
2. Department of Forest Resources Conservation & Ecotourism, Faculty of Forestry and Environment, IPB University (Bogor Agricultural University), Bogor 16680, Indonesia
3. Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
4. Basilornis Consults, Muntendampad 15, 6835 BE Arnhem, The Netherlands