Canopy light dynamics and its impact on photosynthesis

Canopies create complex light dynamics for leaves in the understory due to the distribution
of foliage and the movement of that foliage. My graduate studies at the University of
California, Davis focused on the leaf flutter habit of poplars, in particular, aspen and
cottonwood. We (Dr. Robert W. Pearcy was my advisor) found that flutter enhances canopy
light penetration and dynamics, which can have substantial impacts on whole canopy
carbon gain. Currently, I have developed a model to predict the light interception of
individual fluttering leaves in full sun. This model has allowed me to test certain hypotheses
regarding the effects of flutter on leaves at the top of the canopy as well as the understory.
I am also interested in testing canopies for species other than poplars and hope to increase
our understanding of canopy motion in general.