The Myers lab at Washington University in St. Louis (http://www.myersecologylab.com) seeks two seasonal field technicians to participate in two large-scale research projects at Washington University's Tyson Research Center (http://tyson.wustl.edu): 1) a 35-year study of forest diversity and dynamics in a large-scale, temperate-forest plot that is part of the Smithsonian ForestGEO global network of forest-research plots (http://www.forestgeo.si.edu); and 2) a landscape-scale experiment investigating the importance of plant functional traits in determining responses of plant diversity to environmental change (prescribed fire & soil-resource availability) and natural enemies (seed predators & herbivores). The technicians will develop skills and gain experience in: 1) field protocols for censuses of long-term forest plots, including plant identification, tree mapping, and measurements of growth and mortality; 2) data collection for large-scale field experiments, including surveys of plant species composition and functional traits across environmental gradients; 3) management of large data sets; and 4) mentoring of undergraduate and high school students in field research.