Redundancy analysis biplot based on Bray–Curtis dissimilarity matrix of ectomycorrhizal fungal communities associated with Betula papyrifera (square), Pinus banksiana (circle), Pinus strobus (triangle), and Quercus macrocarpa (diamond), and constrained to measured daily mean soil moisture and temperature from ambient (Control), warming (W) and reduced rainfall (RR) and combined (W+RR) treatments. Point colors correspond to treatment, and shape corresponds to the associated tree host. The relative contribution of each axis to the total inertia in the data, as well as to the constrained space only, respectively, are indicated in percent at the axis titles.