Smith, Alistair M. S.
Kolden, Crystal A.
Bowman, David M. J. S.
Article History
First Online: 5 November 2018
Change Date: 14 November 2018
Change Type: Update
Change Details: In the version of this Comment originally published, an incorrect version of Fig. 2 was used in the PDF. This has now been amended in all online versions of the Comment.
Competing interests
: The authors declare no competing interests.