We highly acknowledged Exequiel Cabanda for the comments and suggestions on the previous drafts of this paper.
We also thank Christopher Connolly, Andrew Davey, Stephen Freeman, David Goulson and Alison Johnston for useful comments on earlier drafts of this paper.
The authors wish to thank Inkeri Parkkari and Mikko Räsänen from the Finnish Transport Safety Agency, and Auli Forsberg and Arja Toola from the Finnish Transport Agency for their helpful suggestions on earlier drafts of this paper.
We thank O. S. Andersen, R. Horn, and A. F. James for critical comments on earlier drafts of this paper, and B. Roux for his suggestion on DSMM.
I would like to thank Steve Bagley and several anonymous reviewers for their useful feedback on various drafts of this paper, and the Nature Publishing Group for their careful editing of the final draft.
We thank T. Baumiller, S. Gatesy, and P. Meyers for discussions, and M. Carrano, M. D'Emic, T. Ikejiri, D. Pol, and E. Rainforth for comments on previous drafts of this paper.
All commented on drafts of this paper.
All authors commented on drafts of this paper.
JMSN was responsible for writing the drafts of this paper.
JM and ML initiated, supervised, conducted, and commented on all drafts of this paper.
LF helped to design the study and contributed to drafts of this paper.
