1. Global Economic Dynamics and the Biosphere, Royal Swedish Academy of Sciences, SE104-05 Stockholm, Sweden;,
2. Stockholm Resilience Centre, Stockholm University, SE106-91 Stockholm, Sweden
3. Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, SE104-05 Stockholm, Sweden
4. Institute for Contemporary Evolution, Davis, California 95616, USA;
5. Department of Entomology and Nematology, University of California, Davis, California 95616, USA