註釋 Long Pine Key in Everglades National Park is recognized as one of the most important regions in south Florida for vascular plant diversity yet faces numerous environmental and anthropogenic stressors. The Key spans gradients of elevation, water depth, and burn frequency and connects the rare marl prairie ecosystem at low elevation with the globally imperiled pine rockland ecosystem at high elevation. In Chapter 1, I combine historical plant community data with current resampling efforts to examine the impacts of 20 years of fire and hydrologic restoration on the plant communities on Long Pine Key and to assess the environmental drivers of species richness and community composition. In Chapter 2, I examine the distribution of plant functional traits, life history strategies, and flammability traits across different environmental gradients mediated by individual species abundance and test for correlations between plant functional traits and flammability traits. In Chapter 3, I combine historical plant composition data with plant functional traits, flammability traits, environmental conditions, and historical measures of fire intensity to determine the relative importance of traits, community composition, and environmental variables on fire behavior across Long Pine Key. 