University of Michigan , Ecology and Evolutionary Biology
BART Enrollment Year: 2008
Email Address: jcrumsey at umich.edu
Biosphere Mentor Knute Nadelhoffer
Atmospehric Mentor: Mary Anne Carroll
Jasmine Crumsey graduated from Albany University in 2007. Holding B.S. degrees in biology and science education, she hopes to improve the bridges between scientific research and science education, particularly environmental education. At the University of Michigan, she is pursuing a PhD in Ecology and Evolutionary Biology, exploring the involvement of biogeochemistry in ecosystem function with Dr.Knute Nadelhoffer. In the future, she aims to serve as an educator at the collegiate level, establishing cooperative programs with educational institutions to stimulate and enhance interest in earth science among K-12 students.
Spatiotemporal Variation in Greenhouse Gas Fluxes from Forest Soils: Earthworms as modulators of soil-atmosphere CO2, CH4, and N2O exchange Soil-atmosphere exchanges of greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) contribute to significant changes in atmospheric chemical cycles and climate. European and Asian earthworms introduced into northern temperate forests drastically alter physical, chemical, and biological properties of soil, potentially having significant effects on CO2, CH4, and N2O fluxes. The proposed research will elucidate the spatial distribution of invasive earthworm communities in soils of the University of Michigan Biological Station (UMBS), and investigate potential relationships between earthworm distribution and CO2, CH4 and N2O fluxes at the scale of the forest ecosystem. Measurements involve sampling earthworm populations and gas fluxes in three different soil conditions, manipulating earthworm populations, and employing geostatistical analyses to evaluate spatial and temporal relationships. Findings of this study will contribute to broader questions concerning shifts in carbon and nitrogen storage, and mechanisms governing soil-atmosphere gas exchange in temperate forest soils