Figure 2 Mean (±1SE) values of total biomass (A) and root mass fraction (B) for four congeneric pairs of invasive and native plant species under a factorial combination of two levels of soil treatments (live vs sterilized) and two levels of harvest time treatments (first vs second). The 4 subgraphs above represent the mean values of total biomass of Sphagneticola (a-1), Paspalum(a-2), Solidago (a-3), Alternanthera (a-4) respectively, under a factorial combination of two levels of soil treatments (livevs sterilized) and two levels of harvest time treatments (firstvs second). And the 4 subgraphs below represent the mean values of root mass fraction of Sphagneticola (b-1),Paspalum (b-2),Solidago (b-3), Alternanthera (b-4) respectively, under a factorial combination of two levels of soil treatments (live vssterilized) and two levels of harvest time treatments (first vssecond). Model terms (I: invasion status; S: soil treatment; H: harvest treatment) whose 95% credible intervals do not overlap with zero are indicated with asterisks (*), and those whose 90% credible intervals do not overlap with zero are indicated with daggers (†).