2 Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway.
3 Department of Physiology, Institute of Basic Medical Sciences, University of Oslo, N-0317 Oslo, Norway.
4 Department of Computer Science, University of Oslo, N-0316 Oslo, Norway.
5 Department of Biomedical and Specialty Surgical Sciences, Faculty of Medicine, Pharmacy and Prevention, University of Ferrara, 35-441221 Ferrara, Italy.