1. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
2. Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
3. Potsdam Institute for Climate Impact Research - Telegraphenberg A 31, 14473 Potsdam, Germany
4. Department of Physics, Humboldt University of Berlin, 12489 Berlin, Germany
5. Institute for Complex Systems and Mathematical Biology, University of Aberdeen, Aberdeen AB24 3UE, United Kingdom
6. Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA