1. School of Mathematics and Statistics; Centre for Research into Ecological and Environmental Modelling; The Observatory; Buchanan Gardens; University of St Andrews; Fife KY16 9LZ UK
2. Statistics in Ecology; Environment and Conservation (SEEC); Department of Statistical Sciences; University of Cape Town; Private Bag X3 Rondebosch 7701 South Africa
3. Panthera; 8 West 40th Street 18th Floor New York NY 10018 USA
4. Environmental Research Institute (ERI); University of Belize; PO Box 340 Belmopan Belize
5. Cambridge Infectious Diseases (CID); University of Cambridge; Madingley Road Cambridge CB3 0ES UK