Responses of the plant community to experimental treatments.

Plant community metrics were compared between native perennial and non-native annual grass-dominated communities using a t-test, and between grazed and ungrazed treatments using paired t-tests. Negative numbers indicate that annual grass or grazed plots have a greater response value (richness, evenness, etc.) than perennial grass or ungrazed plots. The 95% confidence interval range is shown for each test. (Significance levels: **, p<0.01; *, p< 0.05; †, p<0.1).
§Values in row represent the 95% confidence range for a difference in the plant community response between plant provenance/life history treatments {native perennial vs. non-native annual grass plots}.
‡Values in row represent the 95% confidence range for a difference in the plant community response between grazing treatments {grazed vs. ungrazed plots}.
Responses of the plant community to experimental treatments.