2. Development of a Spatially-Related Phytochemical Database for a Chihuahuan Desert Shrubland Mary E. Lucero 1, Rick Estell 1, Ken Ramsey 2, Kris Havstad 1 1 USDA-ARS Jornada Experimental Range, Las Cruces New Mexico (http://jornada-www.nmsu.edu/) 2 Jornada Basin LTER, New Mexico State University, Las Cruces, NM (http://jornada-www.nmsu.edu/) We examine soil and vegetation dynamics involved in arid land degradation and desertification at multiple scales.

3. Phytochemistry plays a role in such vegetation dynamics as allelopathy, herbivore deterrence, and plant-plant competition. Our goals are to:  determine the volatile composition of JER plants  define how these volatiles interact with key soil microbes, herbivores, and competitive plants  identify areas where phytochemical interactions contribute to success or failure of a plant species.  Apply findings to development of remediation strategies.

4. PhytoChemistry Database Protocols Chemicals Datasets marker gene sequences (TBA) Essential Oil Projects LTER plant species list Primary Key ID Plant species code Related Dataset ID’s (examples: Oil yield, DMA, GCMS, GCFID) X, Y, Z GPS coordinates and related details GCMS-TIC of essential oil from Dalea scoparia Image (*.gif) or ASCII? We want to avoid re-creating MS software *.CDF files not as universal as we would like