highly significantp < 2.2 × 10 −16
There was a highly significant effect of orchard on epiphyte species richness per tree ( F 4,607 = 358.17, p < 2.2 × 10 −16 ) and a highly significant effect of cultivar nested within orchard ( F 5,607 = 20.92, p < 2.2 × 10 −16 ; Appendix S2).