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NEW- Postdoctoral Position Available -- July 2, 2018
Postdoctoral Research Associate in Plant Ecophysiology / NB50676169
A postdoctoral position is available in the Environmental Sciences Division and Climate Change Science Institute of Oak Ridge National Laboratory to investigate plant carbon physiology and water relations in context of climate change. You will join a multi-disciplinary team of investigators undertaking a broad, integrated field experimental study to assess and model the response of a northern peatland ecosystem to increases in temperature and exposures to elevated atmospheric CO2 concentrations.
Follow this link to official job posting: http://bit.ly/2x57YiB
You will possess a Ph.D. with comprehensive experience in plant physiological ecology and one or more of the following disciplines: photosynthesis/respiration, plant water relations, biophysics, mechanistic modeling of plant physiological processes, or global change ecology. Prior experience with experimental field ecological research and associated laboratory approaches (including gas exchange and fluorescence, sap flow, respiration and stable isotopes) and an appreciation of data-model interactions is highly desirable. Your research will focus on one or more of the following: photosynthetic and respiratory acclimation to elevated CO2 and T, plant hydraulics, phenology, morphology and biochemistry; although focused self-directed research is expected. While woody plants dominate the shrub level and overstory at the site, herbs, grasses and non-vascular plants are also of interest and some work may be focused on these non-woody species. The position will require extensive self-directed fieldwork at the flagship ‘Spruce and Peatland Responses Under Climatic and Environmental Change’ (SPRUCE) experimental field site in northern Minnesota (http://mnspruce.ornl.gov/). Residency at ORNL in Tennessee or at the MN field site is a possibility. Ability to work as part of a team and be comfortable in a multi-disciplinary environment is critical. You will be a self-starter and have a proven record of research that resulted into high-quality peer-reviewed journal publications, and national and international presentations.
SPRUCE Experiment: http://mnspruce.ornl.gov
Climate Change Science Institute: http://climatechangescience.ornl.gov/
Questions regarding the position can be directed to Jeff Warren, email@example.com
SPRUCE: Sphagnum Productivity and Community Composition in the SPRUCE Experimental Plots
This data set reports annual dry matter production of Sphagnum in replicated growth columns, the composition of the moss community, and plot-average Sphagnum productivity in the SPRUCE experimental study plots located in the S1-Bog. Data are reported for 2016 (October 2015 to October 2016) and 2017 (October 2016 to October 2017).
SPRUCE Vegetation Phenology in Experimental Plots from Phenocam Imagery, 2015-2017
This data set consists of PhenoCam data from the SPRUCE experiment from the beginning of whole ecosystem warming in August 2015 through the end of 2017. Digital cameras, or phenocams, installed in each SPRUCE enclosure track seasonal variation in vegetation “greenness”, a proxy for vegetation phenology and associated physiological activity. Regions of interest (ROIs) were defined for vegetation types (1) Picea trees (EN, evergreen needleleaf); (2) Larix trees (DN, deciduous needleleaf); and (3) the mixed shrub layer (SH, shrubs).
This data set consists of two sets of data files: (1) standard “3-day summary product files” for each camera and each ROI (i.e. vegetation type), characterizing vegetation color at a 3-day time step and (2) a “transition date file” containing the estimated “greenness rising” (spring) and “greenness falling” (autumn) transition dates.
SPRUCE Ground Observations of Phenology in Experimental Plots, 2016-2017
This data set consists of phenological transition dates, as derived from direct observations of vegetative and reproductive phenology recorded by a human observer, from the SPRUCE experiment during the 2+ years (August 2015 through December 2017) of whole-ecosystem warming. For 2016, only springtime (April - June) phenological events are included. For 2017 (April - December), spring and autumn events are included.
Beginning in April 2016, human observers have been directly tracking the phenology of both woody and herbaceous species on a weekly schedule within the SPRUCE experimental chambers. The observed date report here is the first survey date on which an event/phenophase was definitively observed.