I am the
lab instructor for physiology and ecology classes for the
Macalester Biology Department. My regular course
assignments are
Biodiversity and Evolution Lab (BIOL270L) and Ecology Lab (BIOL285L),
but I have also helped with Cell Biology and Genetics discussion and
lab sections, Human Physiology lab, and Plant and Animal Physiology
lab. Until May 2009 I was also the resident naturalist at Macalester's
field station
-- the Katharine Ordway Natural History Study Area
(KONHSA). I'm still very involved with the field station, and like to
work it into my labs whenever I can. In addition to the field station,
I also help out with a number of other departmental resources
including the
greenhouse
and the new
flow
cytometer, which I also like to work into the curriculum whenever
possible.
I am also a PhD student at
the University of Alaska, Fairbanks. My
dissertation research
centers on symbiotic interactions between alder plants (Alnus spp.) and nitrogen-fixing Frankia bacteria on the
100-mile-wide floodplain of the Tanana River near Fairbanks. In this
area the symbiosis with Frankia
allows alder to colonize
newly-formed river terraces, which are very low in soil nitrogen (N).
The competitive edge provided to alder by Frankia during this process is
short-lived, however, because the alders quickly enhance the
availability of N in the soil, which helps other plant species colonize
these sites. Large changes in the community and ecosystem follow over
the next ~150 years, which changes the environmental context of the
relationship between alder and Frankia.
How this relationship responds to these changes is the subject of my
dissertation research.