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Table 2 Results of the PERMANOVA test to estimate the effect and spatial variation of D. geminata on the diatom community in Chilean rivers. The sources of variation considered in the analyses were PA: Presence / Absence of D. geminata, Ba: basins, the combined factor PAxBa and Res: Residuals

From: Community signals of the effect of Didymosphenia geminata (Lyngbye) M. Schmidt on benthic diatom communities in Chilean rivers

Source df SS MS Pseudo-F P(perm) Unique perms P(MC)
PA 1 71,249 71,249 15.263 0.001 999 0.001
Wa 11 223,730 20,339 7.0661 0.001 991 0.001
PAxWa 11 63,151 5741 1.9945 0.001 996 0.001
Res 995 2,864,000 2878.4     
Total 1018 3,391,100