North Temperate Lakes Long Term Ecological Research studies the ecology of lakes as one of a network of sites established by the National Science Foundation. We are interested in how biophysical setting, climate, and changing land use and cover interact to shape lake characteristics and dynamics over time (past, present, future).
Our primary study sites include a set of seven northern Wisconsin and four southern Wisconsin lakes and their surrounding landscapes. The project, which started in 1981, is administered by the Center for Limnology at the University of Wisconsin-Madison.
Long term research at the NTL-LTER site, which was established in 1981, provided unexpected insights into the effect of climate shifts on lake-groundwater interactions. Five years after the site was established, the region experienced a severe 4-year drought. The availability of continuous, long-term data before, during, and after the drought allowed Anderson et al. (1993) to show that local flowpaths of groundwater to lakes were much more dynamic and transient than previously thought. Crystal Lake, an NTL-LTER seepage lake located high in the landscape received up to 10% of it's water inputs from groundwater during wet periods, but became totally isolated from groundwater inputs during the drought ....
This material is based upon work supported by the National Science Foundation under Cooperative Agreement #DEB-0822700, NTL LTER. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.