Figure 1: Mean percent colonization of cheatgrass roots by AMF structures across the lifespan of cheatgrass collected from two patches in an invaded shortgrass prairie near Fort Collins, CO, USA. Left y-axis gives percent colonization for vesicles, arbuscules, hyphae, and total AMF colonization. Right y-axis gives soil temperature at a depth of 15 cm, measured at the Colorado State University Fort Collins Weather Station, approximately 5.5 km from the study sites.