A multidisciplinary approach was used to study the Late-Glacial and Post-Glacial history of a Swiss Plateau lake. Pollen analysis revealed thirteen major changes in vegetation. A series of coordinated fluctuations in vegetation and lacustrine trophic status were found, which were partially interpreted as the result of climatic changes. Oxygen isotope ratios revealed three major shifts in temperature which correspond with alterations in vegetation composition, sediment composition and lake trophic status. Cladoceran microfossils and fossil pigments were used as indicators of trophic status and reflected periods during which the lake was partially anoxic.