
Figure 1
Ten steps of public participation in scientific research projects, adapted from Bonney et al. (2009).

Figure 2
PRISMA flow diagram illustrating the study selection process.
Table 1
Distribution of participant categories and types in the reviewed papers. NGOs: nongovernmental organizations.
| CATEGORY | TYPES OF PARTICIPANTS | % OF PAPERS WITH PARTICIPANT TYPE |
|---|---|---|
| Citizens | Farmers | 100% |
| Farmers’ associations | 18% | |
| Local community | 9% | |
| Experts | Technicians | 15% |
| Scientists | 24% | |
| Facilitators | 41% | |
| NGOs | NGOs | 21% |
| Private companies | Processers | 15% |
| Suppliers | 9% | |
| Certifying bodies | 3% | |
| Industries | 6% | |
| Investment companies | 3% | |
| Not specified private companies | 3% | |
| Public organizations | Governing agencies | 24% |
| Environmental protection institutions | 6% |

Figure 3
Classification of barriers and facilitators into overarching themes.
