Extended Data Figure 8: Frequency distribution of MPA management, ecological and other key variables.
From: Capacity shortfalls hinder the performance of marine protected areas globally
a–n, White bars indicate the distribution of scores from the latest available management assessments in 433 MPAs (a–j); MPAs where fish biomass data were available (n ≤ 218 MPAs) (k–n). Grey bars indicate MPAs used in the analysis modelling the relationship between management processes and ecological impact (n ≤ 62 MPAs). Indicators for inclusive decision-making (b) and enforcement (g) have a maximum score of 2. Non-integer values were reported scores by few managers, or represent the median value of multiple assessments in the latest year. k, Mean (MPA-level) response ratios (natural log scale) for fish biomass. l, Proportion of survey sites for an MPA sampled from within a prohibited-fishing (no-take) zone (0, all multi-use area; 1, all no-take/prohibited fishing area). m, MPA age (years between establishment and fish survey). n, MPA size (thousand km2). MPA age and size were transformed to the log scale for the analysis.
