Kilham, S. S. Drexel University,
, . S. ,

Climate factors act on lakes in a wide variety of ways that affect the ratios of elements in organisms and their energy balance. Climate affects the loading of essential elements to lakes, usually through precipitation and runoff. Temperature affects a number of factors with the potential to alter stoichiometry, including duration of ice cover, onset of stratification, depth of stratification, and metabolism of organisms. Recent studies in the large lakes of the Yellowstone Ecosystem will illustrate some of the connections between global and regional climate factors, the ratios of the essential elements, and algal species abundances and distributions. For example, nitrogen loading via winter precipitation is an important forcing function which connects algal biomass and species composition to regional and global climate. Data from other lakes will be evaluated for similar relationships between in-lake ecological stoichiometry and regional or global scale climate phenomena.
Day: Wednesday, Feb. 3
Time: 03:45 - 04:00pm
Location: Sweeney Center
Code: SS49WE0345S