1. Institut für Theoretische Physik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany
2. Institute of Physics, Saratov State University, 83 Astrakhanskaya Street, Saratov 410012, Russia
3. Bernstein Center for Computational Neuroscience Berlin, Humboldt-Universität, 10115 Berlin, Germany
4. Potsdam Institute for Climate Impact Research, Telegraphenberg A 31, 14473 Potsdam, Germany
5. Institute of Physics, Humboldt University Berlin, 12489 Berlin, Germany
6. Biology Department, Saratov State University, 83 Astrakhanskaya Street, Saratov 410012, Russia