The authors surveyed understory vegetation across a gradient of increasing canopy loss, ranging from unmanaged forest to fuel treatments, fuel treatments followed by low-moderate severity wildfire, and high-severity wildfire only.
Stevens, Jens T., Hugh D. Safford, Susan Harrison and Andrew M. Latimer. 2015. Forest disturbance accelerates thermophilization of understory plant communities. Journal of Ecology in press. http://dx.doi.org/10.1111/1365-2745.12426