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- Bestelmeyer, Brandon T.; Duniway, Michael C.; James, Darren K.; Burkett, Laura M.; Havstad, Kris M.
- Ecology letters 2013 v.16 pp. 339
- arid lands; desertification; ecosystems; grasses; grasslands; grazing; grazing intensity; models; plant competition; shrubs; vegetation cover; Chihuahuan Desert
- ... Theoretical models predict that drylands can cross critical thresholds, but experimental manipulations to evaluate them are non-existent. We used a long-term (13-year) pulse-perturbation experiment featuring heavy grazing and shrub removal to determine if critical thresholds and their determinants can be demonstrated in Chihuahuan Desert grasslands. We asked if cover values or patch-size metrics c ...