Online Resource 1 Summary table of total bryophyte species richness observed and estimated for each host species within each forest type.

Broadleaved laurel forest / Ericaceous forest
Erica / Myrica / Ilex / Laurus / Erica / Myrica / Ilex / Laurus
No. plots / 22 / 27 / 21 / 28 / 23 / 18 / 18 / 15
No. trees (mean per plot) / 55 (2.5) / 58(2.1) / 56(2.7) / 77(2.8) / 69(3.0) / 48 (2.7) / 34(1.9) / 34(1.8)
No. microplots / 220 / 232 / 224 / 308 / 276 / 192 / 136 / 136
Observed richness
Bryophytes / 26 / 31 / 26 / 29 / 30 / 28 / 30 / 31
Liverworts / 16 / 19 / 15 / 15 / 18 / 17 / 16 / 16
Mosses / 10 / 12 / 11 / 14 / 12 / 11 / 14 / 15
Relation liverwort/moss / 1.6 / 1.6 / 1.3 / 1.1 / 1.5 / 1.5 / 1.1 / 1.1
No. uniques / 1 / 2 / 1 / 1 / 3 / 1 / 2 / 2
No. duplicates / 1 / 2 / 1 / 1 / 2 / 3 / 1 / 2
Estimated richness
Chao 2 / 32.4 / 38.5 / 32.0 / 30.5 / 40.1 / 33.3 / 38.1 / 39
Jacknife 2 / 36.6 / 43.7 / 34.6 / 31.9 / 41.5 / 37.6 / 42.3 / 36.4
Bootstrap / 29.6 / 36.1 / 28.6 / 30.5 / 33.9 / 31.7 / 33.9 / 34.6
Michaelis-Menton / 24.3 / 28.6 / 24.5 / 28.4 / 27.7 / 26.7 / 28.4 / 30.1
Completeness
Chao 2 / 0.80 / 0.81 / 0.81 / 0.95 / 0.75 / 0.84 / 0.79 / 0.79
Jacknife 2 / 0.71 / 0.71 / 0.75 / 0.91 / 0.72 / 0.74 / 0.71 / 0.85
Bootstrap / 0.88 / 0.86 / 0.91 / 0.95 / 0.88 / 0.88 / 0.88 / 0.90
Michaelis-Menton / 1.07 / 1.08 / 1.06 / 1.02 / 1.08 / 1.05 / 1.06 / 1.03
Mean completeness / 0.87 / 0.86 / 0.88 / 0.96 / 0.86 / 0.88 / 0.86 / 0.89

The percentage of completeness is the ratio of observed to estimated species richness. Very high values of completeness values are given in bold (values higher than 85%). Total richness values observed for liverworts and mosses also are included. Observed richness: total number of species; uniques: species represented by only one microplot; duplicates: species represented by only two microplots; Erica: Erica arborea; Myrica: Myrica faya; Ilex: Ilex canariensis; Laurus: Laurus novocanariensis.