1. Institute of Entomology Biology Centre of the Czech Academy of Sciences Ceske Budejovice Czech Republic
2. Department of Biological Sciences National University of Singapore Singapore Singapore
3. Faculty of Science University of South Bohemia Ceske Budejovice Czech Republic
4. Guangxi Key Laboratory of Forest Ecology and Conservation College of Forestry Guangxi University Nanning China
5. Field Ornithology Group of Sri Lanka Department of Zoology University of Colombo Colombo Sri Lanka