1. Department of Agronomy, National Taiwan University, Taipei 10617, Taiwan
2. Institute of Statistics, National Tsing Hua University, Hsin-Chu 30043, Taiwan
3. Bavarian Environment Agency, Biodiversitätszentrum Rhön, Marktplatz 11, 97653 Bischofsheim i.d.R., Germany
4. Field Station Fabrikschleichach, Biocenter, University of Würzburg, Glashüttenstr. 5, 96181 Rauhenebrach, Germany
5. Hessian Agency for Nature Conservation, Environment and Geology, Biodiversity Center, Europastraße 10, 35394 Gießen, Germany