Statistical analysis of ecosystem metrics.

Results from the ANOVA at the end of the experiment, using log transformed data. The median and interquartile range (IQR) are reported for the last sampling date in the original units of the metric (i.e. not log transformed). The ‘Flatness ’, ‘Levels ’, and ‘Parallelism’ columns show the p-values for each of these tests in the profile analysis (see text). Metrics without these tests were only measured once at the end of the experiment. PAR is photosynthetically active radiation, is the absorption co-efficient at 320 nm. Loadings for the first three axes from the linear discriminant analysis (LDA) explain 20%, 19%, and 15% of the discriminant function, respectively.