These are examples of the projects, publications and data sets used to answer the NTL framework question. Other projects and data sets may be found using the keywords 'long-term change', 'climate forcing', 'drivers', or 'ecosystem services'.
In aquatic ecosystems, phytoplankton biomass may remain about constant while concentrations of the limiting nutrient are below detection. It has been thought that mixing events that add nutrients to the mixed layer may cause episodic algal blooms in eutrophic lakes. Another explanation may be that rapid rates of biotic recycling among primary producers and heterotrophic consumers could maintain high phytoplankton biomass. The recycling process has been difficult to observe because release and subsequent uptake may occur over a very short time scal ....
NTL has transformed our understanding of aquatic ecosystems by pioneering new approaches and perspectives for studying these environments. These transformations include:
NTL researchers developed the “lake landscape position” concept to explain spatial variability in water chemistry and community composition that results from a shifting balance of groundwater, surface water, and precipitation inputs to adjacent lakes.