Dr. Havalend E. Steinmuller
Dr. Havalend E. Steinmuller is a Senior Marine Scientist at the Dauphin Island Sea Lab and an Assistant Professor at the University of South Alabama. Dr. Steinmuller came to Alabama from Florida, where she was a postdoctoral scholar at Florida State University’s Coastal and Marine Lab. Dr. Steinmuller holds a BS (2013) and MS (2015) from Louisiana State University, and a PhD (2019) from the University of Central Florida. She is a coastal biogeochemist interested in how coastal systems, specifically intertidal oyster reefs, mangroves, and tidal marshes, respond to disturbance (sea-level rise, eutrophication, extreme events, etc.).
- 2019 Ph.D. in Conservation Biology, Department of Biology, University of Central Florida
- 2015 M.S. in Oceanography and Coastal Sciences, Department of Oceanography and Coastal Sciences, Louisiana State University
- 2013 B.S. in Coastal Environmental Science, College of the Coast and Environment, Louisiana State University
I seek to answer research questions related to how coastal ecosystem function is impacted by disturbance across multiple scales, ranging from microbially-mediated biogeochemical reactions to ecosystem-level responses. Specifically, my interests include:
- Characterizing wetland vulnerability to sea-level rise and saltwater intrusion,
- Determining how vegetation change and mangrove encroachment alter biogeochemical processing of energy and nutrients,
- Understanding hurricane impacts on biogeochemical cycles and surface elevation dynamics in coastal environments,
- Determining how intertidal oyster reefs contribute to carbon and nutrient sequestration, and mediate eutrophication,
- Defining the role of carbon quality and geomorphic setting in ‘blue carbon’ storage
- Steinmuller, H.E., J. Garwood, E. Bourque, S.B. Lucas, K.M. Engelbert, J. L. Breithaupt. “Comparing
vertical change in riverine, bayside, and barrier island wetland soils in response
acute and chronic disturbance in Apalachicola Bay, FL”. Accepted in a special issue (Wetland Elevation Dynamics) of Estuaries and Coasts.
- Breithaupt, JL., and HE. Steinmuller. "Refining the global estimate of mangrove carbon burial rates using sedimentary and geomorphic settings." Geophysical Research Letters (2022): e2022GL100177.
- Steinmuller, H. E., J.L. Breithaupt, K. Engelbert, P. Assavapanuvat, T. S. Bianchi. “Coastal wetland
soil organic carbon storage at mangrove range limits in Apalachicola Bay, FL: Observations
expectations”. Accepted in a special issue (Mangroves in the Anthropocene) of Frontiers in Forests and Global Change.
- Hurst, N.R., B. Locher, H.E. Steinmuller, L. J. Walters, and L.G, Chambers. “Carbon Dynamics and Microbial Community Response
to Oyster Reef Restoration: Implications for Carbon Storage”.
Limnology and Oceanography (2022).
- Steinmuller, H.E., S. L. Stoffella, R. Vidales, M.S. Ross, S. Dattamudi, and L.J. Scinto. “Characterizing
hydrologic effects on soil physicochemical variations within coastal tree islands
and marshes in the Florida Everglades”. Soil Science Society of America Journal (2021).
- Steinmuller, H.E., T.E. Foster, C.R. Hinkle, L.G. Chambers. “Herbaceous encroachment increases soil nutrient content and supports higher rates of biogeochemical processing in a coastal marsh”. Science of the Total Environment (2020).
- Steinmuller, H.E., M.P. Hayes, N.R. Hurst, Y. Sapkota, R.L. Cook, J.R. White, X. Zuo, L.G. Chambers.
“Does edge erosion alter coastal wetland soil properties? A multi-method biogeochemical
Catena 187 (2020).
- Steinmuller, H.E., T. E Foster, P. Boudreau, C.R. Hinkle, L.G. Chambers. “Tipping points in the mangrove march: Characterization of biogeochemical cycling along the mangrove – salt marsh ecotone”. Ecosystems (2020).
- Breithaupt, J.L., N.R. Hurst, H.E. Steinmuller, E. Duga, J.M. Smoak, J. Kominoski, L.G. Chambers. “Comparing the biogeochemistry
of storm surge sediments and pre-storm soils in coastal
wetlands: Hurricane Irma and the Florida Everglades”. Accepted within a special issue (Impact of 2017 Hurricanes on Estuaries and Coasts in the Caribbean and the Gulf Coast States) of Estuaries and Coasts (2019).
- Steinmuller, H. E., and Lisa G. Chambers. "Characterization of coastal wetland soil organic matter: Implications for wetland submergence." Science of the Total Environment 677 (2019): 648-659.
- Chambers, L.G., H.E. Steinmuller, J. Breithaupt. “Toward a mechanistic understanding of peat collapse and its contribution to coastal wetland loss”. Ecology (2019) 100 (7):e02720.
- Steinmuller, H.E., K. Dittmer, J.R. White, L.G. Chambers. “Understanding the fate of soil organic matter in submerging coastal wetland soils: a microcosm approach.” Geoderma 337 (2019): 1267-1277.
- Steinmuller, H. E., and Lisa G. Chambers. "Can saltwater intrusion accelerate nutrient export from freshwater
wetland soils? An experimental approach." Soil Science Society of America Journal
82.1 (2018): 283-292.
- White, J.R., H.E. Steinmuller. "El ciclo del Nitrogeno en los humedales". Humedales de tratamiento: alternativa de tratamiento de aquas residuales aplicable en America Latina (2018). Steinmuller, Havalend E. 3
- Dittmer, K. M., Steinmuller, H.E., Chambers, L.G. “Temperature effects on greenhouse gas production from treatment
wetland soils along a nutrient gradient.” UCF Undergraduate
Research Journal 9 (2017).
- Chambers, L.G., Gaspar, S.A., Pilato, C.J., Steinmuller, H.E., McCarthy, K.J., Sacks, P.E., Walters, L.J. “How well do restored intertidal oyster reefs support key biogeochemical properties in a coastal lagoon?" Estuaries and Coasts (2017).
- Steinmuller, H.E., M.B. McKee, J.R. White, S. A. Graham, I.A. Mendelssohn. “A Decadal Scale Nutrient
Loading Study in a Coastal Wetland: Impacts on Soil Microbial Processes”. Ecological
Engineering (2016). 97:58-63.