Fig. 3

Ordination diagram of the sampling sites for the soil seed bank composition under the inside and outside canopies of three tree species by principal component analysis (PCA) in Babile Elephant Sanctuary of eastern Ethiopia. ARIC Acacia robusta inside canopy, AROC Acacia robusta outside canopy, BAIC Balanites aegyptiaca inside canopy, BAOC Balanites aegyptiaca outside canopy, ZSIC Ziziphus spina-Christi inside canopy, ZSOC Ziziphus spina-Christi outside canopy