Element Linkage and Growth-Competition Tradeoffs in
Freshwater Zooplankton
This project will explore a new
model of element linkage in organisms. The model is highly
general and makes a single assumption Πthat organisms
maintain balanced growth or equal specific rates of change
of all elements within organism biomass. Using just that
assumption, the Element Linkage model ties together three
parameters: growth rate, organism stoichiometry, and a new
parameter referred to as the catalysis power.
Primary Production and Grazing Dynamics in the
Ultra-Oligotrophic Waters of Lake Superior
This project will improve estimates of lake-wide primary
productivity in Lake Superior using 14C
incubations on ship and in situ. It will make
some of the first estimates of grazing on phytoplankton and
bacterioplankton in the lake. It will help reduce
present uncertainties in the lake's C cycle.
IGERT: Non-Equilibrium Dynamics Across Space and Time:
A Common Approach for Engineers, Earth Scientists, and
Ecologists.
This training grant will bring together scholars of
ecology, civil engineering, and the earth sciences to study
the interplay between landscape changes and ecosystem
processes across a wide range of spatial and temporal scales
and across interfaces, such as agroecoregion or urban
boundaries, with an emphasis on non-equilibrium dynamics. It
recognizes the need for engineers to increasingly consider
environmental constraints in addition to economic
constraints, and the need for ecologists to understand
effects of physical processes and materials transport on
ecosystem dynamics.
