Research Project Activities
DENITRIFICATION
RESEARCH COORDINATION
NSF:
Denitrification
Research Coordination Network (RCN)
Rutgers University Institute
of Marine and Coastal Sciences:
Dr.
Sybil P. Seitzinger, Nutrient
Biogeochemistry Group
• 2007
October Short course for students: The nitrogen cycle with emphasis
on denitrification. International
Nitrogen Conference. Costa do Sauipe, Brazil.
• 2006
November Denitrification
Modeling Workshop. Institute of Ecosystem Studies. Millbrook, New
York.
GLOBAL
MODELING OF NUTRIENT EXPORT
UNESCO-Intergovernmental
Oceanographic Commission (IOC):
Global
Nutrient Export from Water(S)heds (Global NEWS) workgroup
Rutgers University Institute
of Marine and Coastal Sciences:
Dr.
Sybil P. Seitzinger, Nutrient
Biogeochemistry Group
• Submitted
to Ecol. Appl. Lee, R.Y., and Seitzinger, S. P.
Land-based dissolved inorganic nitrogen export to large marine ecosystems.
• Submitted
for UNEP. Seitzinger, S.P.,and Lee, R.Y. Land-based
nutrient loading to LMEs: A global watershed perspective on magnitudes
and sources. In: The UNEP Large Marine Ecosystems Report: A Perspective
on Changing Conditions in LMEs of the World's Regional Seas. Sherman,
K., and Hempel, G., eds.
• 2008
Intergovernmental Oceanographic Commission Technical Series. UNESCO.
Filling Gaps in LME Nitrogen Loadings Forecast for 64 LMEs: GEF/LME
global project promoting ecosystem-based approaches to fisheries conservation
and large marine ecosystems. Eds. Seitzinger, S., Sherman, K., Lee,
R., and Torres, J. 79.
•
2007 Final
Report to United Nations Environment Programme-Global Environment Facility.
Seitzinger, S.P.,and Lee, R.Y. Eutrophication: Filling
gaps in nitrogen loading forecasts for LMEs. Component three in GEF
MSP: Promoting ecosystem-based approaches to fisheries conservation
and large marine ecosystems. [pdf]
•
2007
December AGU Meeting. Seitzinger, S.*, Mayorga, E., Beusen, A.,
Bouwman, A.F., Dumont, E., Fekete, B., Harrison, J., Kroeze, C., Lee,
R., Vorosmarty, C., and Wisser, D. Past, Current and Future
Trajectories of Watershed Nutrient Sources, Forms and Exports: a Global
NEWS application to the Millennium Ecosystem Assessment scenarios.
[abstract]
• 2007
November ERF Meeting. Mayorga, E., Seitzinger, S., Beusen, A., Bouwman,
A.F., Dumont, E., Harrison, J., Kroeze, C., Lee, R.,
and Wisser, D. Scenarios of Watershed Nutrient Sources, Forms and Exports:
a Millennium Ecosystem Assessment "Global NEWS" Application.
[abstract]
• 2007
October International Nitrogen Conference. Seitzinger, S.*, Mayorga,
E., Beusen, A., Bouwman, A.F., Dumont, E., Fekete, B., Harrison, J.,
Kroeze, C., Lee, R., Vorosmarty, C., and Wisser, D.
Past, Current and Future Trajectories of Watershed Nutrient Sources,
Forms and Exports: a Global NEWS application to the Millennium Ecosystem
Assessment scenarios. [abstract]
• 2006
May Workshop. UNESCO-IOC. Paris, France.
• 2006
September GEF-LME
Nutrient Export Modeling Training Workshop. UNESCO-IOC. Paris, France.
AN
ASSESSMENT OF NITROGEN
International
Nitrogen Initiative (INI)
Rutgers University Institute
of Marine and Coastal Sciences:
Dr.
Sybil P. Seitzinger, Nutrient
Biogeochemistry Group
• 2007
October International Nitrogen
Conference. Erisman, J.W.*, Lee, R., Seitzinger,
S., and Galloway, J. Policies and partnerships for control of excess
reactive nitrogen in the environment. Costa do Sauipe, Brazil.
MICROBIAL
MATS IN MANGROVE
BIOCOMPLEXITY
TWIN CAYS, BELIZE
Smithsonian
Institution Environmental
Research Center:
Dr.
Ilka C. Feller, Animal-Plant Interaction Lab
University of Georgia Department
of Marine Sciences:
Dr. Samantha
B. Joye, Biogeochemistry/Molecular
Microbial Ecology Group
•
In preparation for Ecology. Lee, R. Y., Feller,
I. C., Lovelock, C. E., Fogel, M. L., Montoya, J. P., Wooller, M., Joye,
S. B. Ecosystem role of benthic microbial mats in carbon fixation on
oceanic mangrove islands.
•
In preparation for Mar. Ecol. Prog. Ser. Lee, R. Y.,
Meile, C. D., Joye, S. B. Patterns of net and gross primary production
in mangrove soils, Twin Cays, Belize: Field results and modeling.
•
2007 Biogeochemistry. Lee, R. Y., Porubsky, W. P.,
Feller, I. C., McKee, K. L., Joye, S. B. Porewater biogeochemistry and
soil metabolism in dwarf red mangrove habitats (Twin Cays, Belize).
DOI 10.1007/s10533-008-9176-9. [abstract] [pdf]
•
2006
University of Georgia Dissertation. Lee, R. Y. Primary
production, nitrogen cycling and the ecosystem role of mangrove microbial
mats on Twin Cays, Belize. 150 pp. [abstract]
[defense]
• 2006
Mar. Ecol. Prog. Ser. Lee, R. Y., and Joye, S. B. Seasonal
patterns of nitrogen fixation and denitrification in oceanic mangrove
habitats. 307:127-141. [abstract] [pdf]
• 2005
October ERF Meeting. Joye, S. B.*, Feller, I. C., and Lee,
R. Y. Primary production and nutrient fluxes in mangrove soils
and microbial mats. [abstract]
• 2005
March Biogeochemistry of Wetlands Symposium. Lee, R. Y.*,
Joye, S. B., and Meile, C. Primary production and respiration rates
of microbial mats in an oceanic mangrove ecosystem. [abstract]
• 2005
February ASLO Meeting. Joye, S. B.*, Lee, R. Y.,
Porubsky, W. P., and Weston, N. B. Environmental controls on denitrification
in temperate and tropical shallow sediments. [abstract]
•
2004 Atoll
Res. Bull. Joye, S. B., and Lee, R. Y. Benthic microbial
mats: Important sources of fixed nitrogen and carbon to the Twin Cays,
Belize ecosystem. 528. [abstract] [pdf]
• 2004
July INTECOL Conference. Joye, S. B., and Lee, R. Y.*
Benthic microbial mats: Important sources of fixed nitrogen and carbon
to the Twin Cays, Belize ecosystem. [abstract]
• 2003
February ASLO Meeting. Lee, R. Y.*, and Joye, S.
B. The importance of microbial mats in the C and N cycle of mangrove
ecosystems. [abstract]
• 2001
November ERF Meeting. Lee, R. Y.*, Wooller, M.
J., Fogel, M. L., and Joye, S. B. Ecosystem controls on nitrogen, carbon
and oxygen cycling in temperate and tropical intertidal sediments. [abstract]
MANGROVE
LEAF LEACHING OF CDOM
FLORIDA KEYS, FLORIDA, USA
Environmental
Protection Agency, Ecosystems
Research Division: Dr.
Richard G. Zepp
National
Network for Environmental Management Studies (NNEMS) Fellowship Program
• 2006
February ASLO Meeting. Shank, G. C.**, Lee, R.,
Zepp, R. G., Bartels, E. CDOM production by mangrove leaf litter and
Sargassum colonies in Florida Keys coastal waters. Eos Trans AGU 87:36,
Ocean Sci Meet Suppl, Abstract OS46N-24. [abstract]
BENTHIC
MICROALGAL MAT BIOGEOCHEMISTRY IN SALT MARSHES
LITTLE SATILLA RIVER AND SAPELO ISLAND, GEORGIA, USA
University
of Georgia Department
of Marine Sciences:
Dr. Samantha
B. Joye,
Biogeochemistry/Molecular Microbial Ecology Group
• 2001
June-August. Supervised NSF REU undergraduate student, Ellen Fragaszy,
project on potential denitrification in Georgia marshes.
• 2005
February ASLO Meeting. Joye, S. B.*, Lee, R. Y.,
Porubsky, W. P., and Weston, N. B. Environmental controls on denitrification
in temperate and tropical shallow sediments. [abstract]
•
2003
September LTER Meeting. Porubsky, W. P.**, Weston, W. P., Joye,
S. B., and Lee, R. Y. Diel and seasonal patterns of
benthic fluxes of nutrients, gases and dissolved organics from temperate
intertidal sediments of Georgia and South Carolina. [abstract]
• 2003
BioGeoChemistry of Tidal Flats: Proceedings of a Workshop held at the
Hanse Institute of Advanced Study, Delmenhorst, Germany, May 14-17,
2003. Forschungszentrum Terramare Berichte. Joye, S. B., Porubsky, W.
P., Weston, N. B., and Lee, R. Y. Benthic microalgal
production and nutrient dynamics in intertidal sediments. 12:67-70.
[abstract] [pdf]
• 2003
May Institute for Chemistry and Biology of the Marine Environment (ICBM)
Biogeochemistry of Tidal Flats Workshop. Joye, S. B.**, Porubsky,
W. P., Weston, N. B., and Lee, R. Y. Benthic microalgal
production and nutrient dynamics in intertidal sediments. [abstract]
• 2002
June ASLO Meeting. Porubsky, W. P.**, Weston, N. B., Lee,
R. Y., and Joye, S. B. Diel and seasonal patterns of benthic
fluxes of nutrients, gases, and dissolved organics from temperate intertidal
sediments. [abstract]
• 2001
November ERF Meeting. Lee, R. Y.*, Wooller, M.
J., Fogel, M. L., and Joye, S. B. Ecosystem controls on nitrogen, carbon
and oxygen cycling in temperate and tropical intertidal sediments. [abstract]
GEORGIA
COASTAL ECOSYSTEMS LTER
LITTLE SATILLA RIVER AND SAPELO ISLAND, GEORGIA, USA
University
of Georgia Department
of Marine Sciences:
Dr. Samantha
B. Joye,
Biogeochemistry/Molecular Microbial Ecology Group
• 2000
August Long-Term Ecological Research (LTER) Meeting. Georgia Coastal
Ecosystems (GCE) introduction.
SALT-WATER
INTRUSION AND COASTAL SEDIMENT NUTRIENT FLUXES GEORGIA AND SOUTH CAROLINA,
USA
University
of Georgia Department
of Marine Sciences:
Dr. Samantha
B. Joye,
Biogeochemistry/Molecular Microbial Ecology Group
• 2000
June ASLO Meeting. Joye, S. B.*, and Lee, R. Y.
Salt water intrusion into shallow coastal aquifers: Impact on sediment
nitrogen and phosphorus pools and potential for altering nutrient fluxes.
[abstract]
NUTRIENT
CHEMISTRY IN SUBTERRANEAN COASTAL AQUIFERS
LONG BAY, SOUTH CAROLINA, USA
University
of South Carolina Department
of Geological Sciences:
Dr. Willard S. Moore
University of Georgia
Department of Marine Sciences:
Dr. Samantha
B. Joye,
Biogeochemistry/Molecular Microbial Ecology Group
• 2002
Geophys. Res. Lett. Moore, W. S., Krest, J., Taylor, G., Roggenstein,
E., Joye, S., and Lee, R. Thermal evidence of water
exchange through a coastal aquifer: Implications for nutrient fluxes.
29(14): art. 1029. [abstract] [pdf]
GROUNDWATER
NUTRIENT CHEMISTRY
SAPELO ISLAND, GEORGIA, USA
University
of Georgia Department
of Marine Sciences:
Dr. Samantha
B. Joye,
Biogeochemistry/Molecular Microbial Ecology Group
Georgia Institute of Technology
School of Earth & Atmospheric
Sciences:
Dr. Carolyn
Ruppel, Geophysics
• 2000
March GSA Meeting. Hunter, K. S.*, Lee, R. Y., Boyd,
B., Schultz, G., Joye, S. B., Ruppel, C. Groundwater geochemistry at
the island-estuary interface at perturbed and pristine sites on a Georgia
Bight barrier island. [abstract]
POTENTIAL
RATES OF DENITRIFICATION ACROSS GALVESTON BAY
GALVESTON
BAY, TEXAS, USA
University
of Georgia Department
of Marine Sciences:
Dr. Samantha
B. Joye,
Biogeochemistry/Molecular Microbial Ecology Group
•
1999 September
ERF Meeting. Lee, R. Y.*, Carini, S. A., and Joye,
S. B. Seasonal variability of and nutrient controls on denitrification
in freshwater and brackish water sediments. [abstract]
DENITRIFICATION
(N2 AND N2O) AND NUTRIENT LOADING
WAQUOIT BAY, MASSACHUSETTS, USA
Marine
Biological Laboratory Boston
University Marine Program:
Dr.
Ivan Valiela, Valiela Lab
University of Georgia
Department of Marine Sciences:
Dr.
Samantha B. Joye, Joye
Biogeochemistry/Molecular Microbial Ecology Group
• 1998
June ASLO Meeting. Lee, R.*, Joye, S. B., Roberts,
B. J., and Valiela, I. Release of N2 and N2O from
salt marsh sediments subject to different land-derived N loads. [abstract]
ASLO/Hampton University scholarship to present 1997 REU research at
the poster session and the student symposium.
• 1997
October ERF Meeting. Lee, R.*, Joye, S. B., Roberts,
B. J., and Valiela, I. Release of N2 and N2O from
salt marsh sediments subject to different land-derived N loads. [abstract]
NSF scholarship to present 1997 REU research at the poster session.
• 1997
Biol. Bull. Lee, R., Joye, S. B., Roberts, B. J., and
Valiela, I. Release of N2 and N2O from salt marsh
sediments subject to different land-derived N loads. 193: 292-293. [abstract]
[pdf]
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