Electronic Supplementary Material Table S1. Each of the 28 species found in the study forest fragments was assigned to one of the species groups of Jenkins et al. (2003). While we mainly used the genus information to identify appropriate species groups, the family information was used for Maackia amurensis because the genus was not represented in Jenkins et al. (2003). In addition, five species (Euonymus sieboldianus,Hydrangea paniculata, Phellodendron amurense, Sambucus racemosa, and Syringa reticulata) whose families were not represented in Jenkins et al. (2003) were classified as mixed hardwoods. However, many of these species are shrubs and, thus, do not account for much of the total aboveground biomass.