Data from: Toward a geography of omnivory: omnivores increase carnivory when sodium is limiting

Ant_dN_Field_Lab_Data_201715N stable isotope, chemistry, and NaCl and Sugar usage data for ants species from 20 forests from Georgia to Maine, USA.Ant_dN_Field_Lab_Data_201715N 数据集包含采自美国佐治亚州至缅因州20片森林的蚂蚁物种的稳定同位素（stable isotope）、化学特征，以及氯化钠（NaCl）与糖类使用情况的相关数据。