Authors: Håvard Kauserud; Einar Heegaard; Ulf Büntgen; Rune Halvorsen; Simon Egli; Beatrice Senn-Irlet; Irmgard Krisai-Greilhuber; Wolfgang Dämon; Tim Sparks; Jenni Nordén; Klaus Høiland; Paul Kirk; Mikhail Semenov; Lynne Boddy; Nils C Stenseth Journal: Proc Natl Acad Sci U S A Date: 2012-08-20 Impact factor: 11.205