Intercept and biomass based GLM output using various biodiversity related parameters. The full exclosure treatment is used as the intercept, while the other treatments are shown with their effect relative to the intercept value. Deviance is listed as the percentage explained by the GLM model relative to the NULL model for 1) treatment alone and 2) for both treatment, location and block. Levels of significance are: * = p < 0.05, ** = p < 0.01, *** = p < 0.001.