1. aKroto Research Institute, The University of Sheffield, Broad Lane, Sheffield, S3 7HQ, England.
2. bSchool of Biological & Environmental Sciences, University of Stirling, Stirling, Scotland.
3. cNorth Wyke Research, Okehampton, Devon, England.
4. dDepartment of Zoology, University of Oxford, Oxford, England.
5. eCentre for Sustainable Water Management, Lancaster Environment Centre, Lancaster, England.
6. fInstitute of Geography and Earth Sciences, University of Wales, Aberystwyth, Wales.
7. gSchool of Health and Related Research, The University of Sheffield, Sheffield, England.
8. hFarming and Food Science, Department for Environment Food and Rural Affairs, London, England.
9. iEnvironmental and Enteric Diseases Department, Health Protection Agency Centre for Infections, London, England.
10. jDivision of Biomedical and Life Sciences, School of Health and Medicine, Lancaster University, England.
11. kEnvironment Agency, Starcross, Exeter, England.
12. lSchool of Veterinary Science, University of Liverpool, England.