1. Centre for the Study of Agriculture, Food, and Environment, University of Otago, Dunedin, New Zealand
2. Department of Statistics, University of California, Irvine, CA
3. Department of Statistics, Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
4. EPICentre, Institute of Veterinary, Animal, and Biomedical Sciences, Massey University, Palmerston North, New Zealand.