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The Hobbie Lab

Research Interests

My research focuses on three main areas:

  1. the influence of changes in atmospheric composition and climate on ecosystem processes;

  2. the effects of urbanization and suburbanization on biogeochemical cycles; and

  3. the influence of plant species on biogeochemical processes.

In the area of global change, I aim to understand how global nutrient cycles affect carbon cycling; how variation in biodiversity, atmospheric carbon dioxide, nitrogen inputs, warming, and precipitation influence grassland ecosystems; and how warming alters community and ecosystem processes at the southern boreal-temperate forest ecotone. In the area of urban ecology, I am studying the effects of urban and suburban development on biogeochemical cycling. In particular we are focusing on quantifying sources of nutrient pollutants to subwatersheds of the Mississippi River and how nutrients move from land to stormwater. We are also studying the role of human choices in both creating and solving urban environmental problems. In all of this work, the influence of plants on soils is an underyling theme.

New Grand Challenges Course for Spring 2015!

GCC 5008, Policy and Science of Global Environmental Change, Tuesdays and Thursdays, 10:15-11:30, Instructors: Sarah Hobbie, Steve Polasky, Elizabeth Wilson

This course replaces EEB/FRNM 5146 and PA 5790 (Section 2).

Lab News
  • Rachel King attended Iso-Camp this summer at the University of Utah.

  • We're excited that Melissa Pastore is joining the lab as a PhD student this fall. Welcome, Melissa!

  • Congratulations to Clare Kazanski on being awarded an NSF Doctoral Dissertation Improvement Grant for her work on how fungi mediate the response of soil carbon cycling to global change.

  • Congratulations to Rachel King on receiving on Honorable Mention for the NSF Graduate Research Fellowship.

  • It's been quite a year in the Hobbie lab. Congratulations to Pamela Weisenhorn, Daniel Nidzgorski, William Eddy, Charlotte Riggs, and Christine O'Connell for earning their PhDs! Pamela is a postdoc at Argonne National Lab, Daniel is a postdoc with a MNDrive project, William is a postdoc at the University of Illinois, Charlotte is a postdoc in the Soil, Water and Climate department at the University of Minnesota, and Christine O'Connell is a postdoc at the University of California, Berkeley. We wish them all the best in these new adventures!

  • Sarah has a new paper out in Trends in Ecology and Evolution. Charlotte has new papers out in Oecologia and Biogeochemistry.

Google Profile and Publications


Ecology, Evolution + Behavior
Cedar Creek Ecosystem Science Reserve
NSF LTER program
Institute on the Environment

Contact information:

Sarah E Hobbie

Professor, Dept. of Ecology, Evolution & Behavior
Office: 502 Ecology
Office Phone: 612-625-6269
Lab Phone: 612-624-7734