The Department of Plant Sciences, University of California-Davis, has 10 fully funded Research Fellowships (M. Sc. and Ph.D.) available for highly qualified students in the areas of plant ecology, agroecology, conservation ecology, landscape ecology, restoration ecology, and plant ecophysiology. These Research Fellowships are for 4yrs for the Ph.D. and 2 years for the MS. For more details and details on the application process see:
http://www.plantsciences.ucdavis.edu/plantsciences/grad_studies/raships.htm