Schindler, Susanne
Gaillard, Jean‐Michel
Grüning, André
Neuhaus, Peter
Traill, Lochran W.
Tuljapurkar, Shripad
Coulson, Tim
Article History
Received: 12 August 2014
Accepted: 22 July 2015
First Online: 21 September 2015
Competing interests
: The authors declare no competing financial interests.