Fig. 3. Interactions among regime shifts in the Causse Méjan case study. A is a partial assessment, and B is the complete assessment (see text). The boxes represent potential thresholds in various domains, e.g., ecological vs. economic, at various scales. For instance, when grazing pressure is low, there is a threshold of pine seed rain that, once crossed, prevents mechanical clearing of seedlings and leads to a regime shift from grassland to woodland at the patch scale. The arrows between boxes show interactions among thresholds (see text).