Fig 1.
Overview of quantitative analysis process.
Data set included in S1 Appendix.
Fig 2.
Engagement in platform projects, by actor type.
N = 97, from data recorded from platforms 2016-08-15. Actor types collected from project descriptions on platforms, project websites, and interviews with project coordinators (S1 Appendix, project analysis).
Fig 3.
Engagement in platform projects by actor type, country comparison.
N = 97, from data recorded from platforms 2016-08-15. Country reflects country the project takes place in, not necessarily the platform on which it is listed, as listed in the project description (S1 Appendix, project analysis).
Fig 4.
Disciplinary focus of platform projects.
N = 97, from data recorded 2016-08-15. Disciplinary categories imputed by authors from project descriptions (S1 Appendix, disciplines).
Fig 5.
N = 97, from data recorded 2016-08-15. Disciplinary clusters created by authors (S1 Appendix, disciplines).
Table 1.
Citizen science and related approaches.