1. Agroecology, University of Göttingen, Göttingen, Niedersachsen, Germany
2. Agroscope FAL Reckenholz, Swiss Federal Research Station for Agroecology and Agriculture, Zurich, Switzerland
3. Department of Forest Resources, Conservation and Ecotourism, Bogor Institute of Agriculture, Bogor, Indonesia
4. Celestion International, Ipswich, Suffolk, United Kingdom
5. Museum Zoologicum Bogoriense Research Centre for Biology-LIPI Jl, Bogor, Indonesia