Understories are a vital component of forest ecosystems, as they host a majority of plant species found in forests. Bracken Fern, commonly known as Pteridium aquilinum, is the dominant species in the understories of the forests in Northern Michigan. Dominant species, such as bracken fern, can have effects on ecosystems that are proportional to their high biomass. I was interested in understanding how the removal of Bracken fern could affect microclimate across understories at the University of Michigan Biological Station, and how those microclimatic changes could, in turn, affect seedling traits and, consequently, seedling success. You can read my M.S. thesis to learn more about the cool findings of this project!
I will be continuing some of this work during my PhD, as the first chapter of my dissertation will focus on how the removal of bracken fern impacts microbial activty and function.
In a single day, plants experience a wide array of stressors from being consumed by herbivores, experiencing water-limited conditions, and undergoing periods of extreme heat or cold. Lowbush blueberry (Vaccinium angustifolium) is a plant that thrives in sunny environments, and often preforms less than optimally in highly shaded areas. That environmental difference, sun versus shade, can lead to changes in traits related to plant performance, defense, and nutrient acquisition strategies.
The second chapter of my PhD will explore how shade stress affects leaf traits such as leaf area and the concentration of chemicals related to UV protection, and ericoid mycorrhizal colonization as a root trait.