1. Imaging and Analysis Centre (IAC); Natural History Museum; London SW7 5BD UK
2. Division of Agriculture & Environmental Sciences; School of Biosciences, Univ. of Nottingham; Loughborough LE12 5RD UK
3. School of Water Energy and Environment, Cranfield Univ.; Cranfield MK43 0AL UK
4. Korea Forest Service; Seoul Korea
5. College of Science, Swansea Univ.; Swansea SA2 8PP UK