Craig Williamson
Global Change Limnology Laboratory


Jasmine Saros Jasmine Saros from the University of Maine is a key collaborator in our alpine lake research in the Beartooth Mountains. In the late 1990's she initiated the current limnological research efforts in the Beartooths with her work on the effects of anthropogenic nitrogen deposition on diatom community structure. Sediment cores demonstrated that recent changes in diatom community structure in the Beartooths lag behind similar changes in the southern Rocky Mountains of Colorado where human habitation is more prevalent. Our collaboration has added UV radiation and zooplankton grazing as an additional factor to consider in changes in diatom communities among lakes of differing UV transparency.

Janet Fischer Janet Fischer, a faculty member at Franklin and Marshall College, focuses her research on community ecology in aquatic systems and the ways in which zooplankton communities respond to environmental stress. She has worked in Lake Giles and Lake Lacawac investigating the effects of UV on respiration rates in Daphnia and diel vertical migration in zooplankton. She is extending her research on zooplankton migration in response to stress to the lakes of the Canadian Rockies, with a particular interest in testing metacommunity ecology theory.

Mark Olson Mark Olson (pictured left with son Trevor) from Franklin and Marshall College is a key collaborator in our work investigating fish spawning behavior in highly transparent systems. He has worked in Lake Giles and Lake Lacawac looking at the photorepair abilities of larval fish and the UV-induced mortality risk of fish in nests. He is also one of the lead investigators in the UV and metacommunity ecology work in the Canadian Rocky Mountains.

Geoff Schladow Geoff Schladow is the director of the UC Davis Tahoe Environmental Research Center, the largest limnological research center west of the Great Lakes. He is responsible not only for coordinating research efforts at TERC, but also making that research accessible to the public and lake managers who might use it to inform management decisions designed to Keep Tahoe Blue.

Monika WinderMonika Winder is a research scientist with the Tahoe Environmental Research Center. She is interested in the response of lake ecosystems to environmental changes and the interactions between physical and biological processes. Her research ranges from the effects of UV on zooplankton life history to changes in alpine zooplankton communities as a result of human disturbance to ways in which climate change affects lake processes. Monika is collaborating with the Global Change Limnology Lab in the deuterium stable isotope research, helping to sort out if this isotope can be used to in alpine systems as an indicator of the source of organic material in lakes.