Climate and Hydrology Shape the Growth and Water Use Efficiency in South Florida's ( <scp>USA</scp> ) Pine and Cypress Forests

grew faster in springs (April-May) when seasonal standing water depths are the lowest. Relative location within the landscape was not an important factor driving tree growth. The iWUE of all species increased significantly with rising mean annual temperature and vapor pressure deficit (VPD), while precipitation and water depth had differential effects on each species' iWUE. Overall, our results highlight the complexity of factors driving tree growth rates and iWUE of these tree species at the southern ends of their distributions, as well as the potential for future climate-driven changes in tree growth and performance across south Florida's natural ecosystems.