Prescribed fire is widely accepted as a conservation tool because fire is essential to the maintenance of native biodiversity in many terrestrial communities. Approaches to this land‐management technique vary greatly among continents, and sharing knowledge internationally can inform application of prescribed fire worldwide. In North America, decisions about how and when to apply prescribed fire are typically based on the histo...

To explore how gradients in nutrient availability influence the stoichiometry of freshwater autotrophs, we sampled algal and submerged vascular plant tissues, as well as water for C : N : P ratios in 41 of north Florida's spring‐fed rivers, which are ideal natural laboratories because of unparalleled temporal stability in chemistry, temperature, and flow. Water chemistry across springs spanned a molar inorganic N : P gradient...

We used eddy covariance and biomass measurements to quantify the carbon (C) dynamics of a naturally regenerated longleaf pine/slash pine flatwoods ecosystem in north Florida for 4 years, July 2000 to June 2002 and 2004 to 2005, to quantify how forest type, silvicultural intensity and environment influence stand‐level C balance. Precipitation over the study periods ranged from extreme drought (July 2000–June 2002) to above‐aver...

Models of tropical mixed forests for simulation of multiple-use forest management are of importance because of the significance of both timber and nontimber forest products (NTFP) to large numbers of rural poor. Models capable of accurately simulating multiple-use forest management and their impacts could be used to address questions such as, how much of a given NTFPs can be extracted before jeopardizing production of other pr...

A process-based model (SPM2) was developed to simulate net hourly exchanges of carbon for slash pine (Pinus elliottii var. elliottii) ecosystems in north-central Florida, and simulated values were compared to those obtained using eddy covariance measurements above the canopy. The SPM2 simulated relatively low hourly rates of net carbon exchange at high irradiance during the day, especially during the month of May. This discrep...