Data collection and filtering processes (a) data sources (b) raw data (timeframe and number of entries) obtained after extracting the data for Spain; raw data were segregated in two groups (c) robust data and (d) non-robust data using three variables, acquisition, implementation and reliability (e) expanded data to obtain comparable yearly costs.

  Part of: Angulo E, Ballesteros-Mejia L, Novoa A, Duboscq-Carra VG, Diagne C, Courchamp F (2021) Economic costs of invasive alien species in Spain. In: Zenni RD, McDermott S, GarcĂ­a-Berthou E, Essl F (Eds) The economic costs of biological invasions around the world. NeoBiota 67: 267-297.