Postdoctoral Research Opportunities in Wetland Biogeochemistry and Plant 
Ecology

The Roberts Lab of Ecosystem Ecology and Biogeochemistry at the Louisiana 
Universities Marine Consortium (LUMCON) is seeking two postdoctoral research 
associates (one in wetland biogeochemistry and one in plant ecology) to 
organize and lead a series field studies and manipulative experiments 
studying the effects of the Macondo Oil Spill on coastal marsh ecosystems. 
The postdocs will join a large, multi-institution team of researchers on the 
Coastal Waters Consortium (CWC) project (http://cwc.lumcon.edu/) funded by 
the Gulf of Mexico Research Initiative to study the impacts of the oil spill 
and future spills on marshes and coastal environments.  Specifically, they 
will be collaborating with the wetland biogeochemistry and microbial ecology 
group led by Drs. Brian Roberts (LUMCON), Anne Giblin (Marine Biological 
Laboratory), and Anne Bernhard (Connecticut College).  Our group’s overall 
objectives since beginning this project in 2012 have been to 1) improve 
understanding of temporal and spatial patterns in marsh biogeochemical 
process rates, associated microbial communities and factors regulating these 
communities and rates; and 2) evaluate the impact of oil exposure on marsh 
biogeochemical processes and associated microbial communities. The postdocs 
will have the opportunity to build on extensive data sets with the goal of 
examining continued impacts as well as the recovery of marsh 
biogeochemistry, microbial communities, and plant dynamics impacted by the 
spill. These data sets include multiple years of sampling on wetland 
biogeochemistry (greenhouse gas fluxes, nitrification, 
denitrification/DNRA/anammox, phosphorus sorption, iron reduction), 
associated microbial communities (ammonia oxidizers, denitrifiers, methane 
oxidizers), and plant above and below ground biomass, production and 
decomposition. Over the next three years, we intend to expand our work in 
several areas including examining: impacts of oil exposure on carbon sinks; 
how plant stress responses link to biogeochemical fluxes; how spatial 
variability between marsh subhabitats in process rates and communities and 
their susceptibility to oiling influence our ability to scale up to the 
whole ecosystem; and how vegetation and salinity alterations might influence 
impacts expected as result of future spills.  This research will include a 
combination of field/lab studies and manipulative experiments at multiple 
scales including the use of a large scale marsh mesocosm facility being 
built as part of CWC.  The post-docs will be based at the LUMCON but may be 
expected to travel periodically to work with collaborators. This is a unique 
opportunity to collaborate with top scientists from around the United States 
in a large, interdisciplinary research project of great importance to the US 
Gulf Coast and other ecosystems impacted by oil-related activities.

Qualifications:  The candidates must have a Ph.D. in ecology, wetland 
science, biogeochemistry, plant ecology or a related field. The preferred 
candidate for the biogeochemistry position will have experience with field 
and laboratory measures of biogeochemical and ecosystem process rates 
including the use of stable isotope techniques. The preferred candidate for 
the plant ecology position will have experience making ground-based 
measurements of spectral reflectance to determine plant physiological status 
and detect stress and have experience making integrated plant-soil 
greenhouse gas flux measurements. Both candidates will also be expected to 
participate in field work that may require physical effort to transport 
equipment in field sites throughout Louisiana that are accessible only by 
small boats.  The ability to work in a group setting is essential, as these 
researchers will work collaboratively with the PIs, other post docs, 
graduate and undergraduate students, and research associates/technicians on 
this project as well as personnel on the larger CWC effort.  High 
organizational and communication skills, creativity in methodological 
development, and understanding of basic experimental design and statistical 
analyses are required for this position   

Duration and Start Date:  Initial appointments are for 1 year, and may be 
renewed for a total of 2.5 years depending on satisfactory performance.  The 
desired start date is spring 2015, but is negotiable.

Location:  Both positions will be based at the Louisiana Universities Marine 
Consortium (LUMCON) Marine Center in Cocodrie, LA (visit 
http:///www.lumcon.edu for information on the facility). The field sites are 
located along the Louisiana coast between LUMCON and the Mississippi River. 

To Apply:  Send 1) a letter of interest that describes your interest in the 
position, your career goals, and details your work and educational 
experience most relevant to the position, 2) curriculum vitae, 3) up to 3 
relevant reprints, and 4) contact information for 3 references to Dr. Brian 
Roberts ([email protected]) with “Wetland biogeochemistry postdoc 
position” or “Wetland plant ecology postdoc position” in the subject line. 
For more information, contact Dr. Brian Roberts by email or phone (985-851-
2821).

Deadline:  Review of applications will commence immediately and continue 
until the position is filled.  

LUMCON is an Equal Opportunity/Affirmative Action Employer that actively 
seeks diversity among its employees.

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