Because of the large number of species, we present the roles in each group of webs in separate files. In all cases, position numbers are as in Fig. S7, Appendix S6. Species_roles_monthly_nd_yearonly.xls contains the roles of species in the monthly webs, with tentatively dated observations excluded. This is the only monthly roles file containing species roles in 2010 or 2011 as there were no tentatively-dated observations in either year
