Kristen Hoefke
I work on projects related to paleoenvironmental reconstruction and interpretation of terrestrial wetland sites across the US, including Alaska, Virginia, and Florida.
Biography
Education:
Environmental Science & Policy, Master of Science (2009)
Concentration: Environmental Biocomplexity
George Mason University
Honors Biology, Bachelor of Science (2006)
Magna cum Laude
George Mason University
Certifications:
Geographical Information Systems (GIS)
Science and Products
Wetlands in the Quaternary
Wetlands accumulate organic-rich sediment or peat stratigraphically, making them great archives of past environmental change. Wetlands also act as hydrologic buffers on the landscape and are important to global biogeochemical cycling. This project uses wetland archives from a range of environments to better understand how vegetation, hydrology, and hydroclimate has changed on decadal to multi-...
Macrofossil and Sediment Processing Laboratory
In the Macrofossil and sediment processing lab we analyze the physical, biological, and geochemical characteristics of peat and sediment samples collected from lake, wetland, and peat cores as proxies for past changes to these depositional environments on timescales of decades to millennia. We primarily study terrestrial wetland ecosystems from subtropical to arctic regions in order to...
Wetlands in the Quaternary Project
Wetlands accumulate organic-rich sediment or peat stratigraphically, making them great archives of past environmental change. Wetlands also act as hydrologic buffers on the landscape and are important to global biogeochemical cycling. This project uses wetland archives from a range of environments to better understand how vegetation, hydrology, and hydroclimate has changed on decadal to multi-...
Influence of permafrost type and site history on losses of permafrost carbon after thaw
We quantified permafrost peat plateau and post-thaw carbon (C) stocks across a chronosequence in Interior Alaska to evaluate the amount of C lost with thaw. Macrofossil reconstructions revealed three stratigraphic layers of peat: (1) a base layer of fen/marsh peat, (2) peat from a forested peat plateau (with permafrost) and, (3) collapse-scar bog...
Manies, Kristen L.; Jones, Miriam C.; Waldrop, Mark; Leewis, Mary-Catherine; Fuller, Christopher C.; Cornman, Robert S.; Hoefke, Kristen Impacts of Hurricane Irma on Florida Bay Islands, Everglades National Park, U.S.A.
Hurricane Irma made landfall in south Florida, USA, on September 10, 2017 as a category 4 storm. In January 2018, fieldwork was conducted on four previously (2014) sampled islands in Florida Bay, Everglades National Park to examine changes between 2014 and 2018. The objectives were to determine if the net impact of the storm was gain or loss of...
Wingard, G. Lynn; Bergstresser, Sarah E.; Stackhouse, Bethany; Jones, Miriam; Marot, Marci E.; Hoefke, Kristen; Daniels, Andre; Keller, Katherine