About the Authors

Bernard Cazelles

To whom correspondence should be addressed. E-mail: cazelles@biologie.ens.fr

Affiliations CNRS UMR 7625, Ecole Normale Supérieure, Paris, France, IRD UR GEODES, Bondy, France

Mario Chavez

Affiliation LENA-CNRS UPR 640, CHU Pitié-Salpêtrière, Paris, France

Anthony J McMichael

Affiliation National Centre for Epidemiology and Population Health, Australian National University, Canberra, Australian Capital Territory, Australia

Simon Hales

Affiliation National Centre for Epidemiology and Population Health, Australian National University, Canberra, Australian Capital Territory, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

BC and SH designed the study. MC and BC analyzed the data. BC, AJM, and SH contributed to the writing of the paper.