Supporting Information Table S1 and Figs S1–S3
Table S1 Predictors of seedling ectomycorrhizal community composition using permANOVA
with different β-diversity metrics. Symbols indicate significant (* P < 0.05) and marginally nonsignificant (. P < 0.10) results.
Bray Curtis
P-value
0.177
0.001*
0.111
βsim
P-value
0.036*
0.051
0.126
0.017*
R2
Log10 dist. to
forest
Year
0.103
R2
Euclidean
P-value
0.222
0.001*
R2
0.035
0.230
Fig. S1 Daily weather data from the Bear Valley Weather station. Plot shows daily records from
80 100
60
40
20
20
15
10
5
1
2
3
4
5
DayOfRun
2
4
6
8
DayOfRun
0
Solar radiation kW-hr/m2
0
Avg. Wind Speed (m/s)
0
Mean Air Temp C
0
Daily Precip (mm)
2005 through 2012. Red lines indicate the time over which the current study took place.
6/05
12/05
6/06
12/06
6/07
12/07
6/08
12/08
6/09
12/09
6/10
12/10
6/11
12/11
6/12
12/12
Fig. S2 Taxonomic distribution of OTUs recovered from 454 pyrosequencing of the
basidiomycete spore community. Each bar chart shows the 20 most abundant taxon (in terms of
total sequence counts) at the respective taxonomic rank.
0
200
400
(a)
9/05
11/05
1/06
3/06
12
16
20
(b)
8
No. species
30 Day Precip (mm)
Fig. S3 Patterns of precipitation (a), species richness (b) and the number of fruit body
observations for Suillus pungens (c) and Thelephora terrestris (d). Data for b–d come from Peay
et al. (2007) and were collected in during the 2005–2006 fruiting season.
3/06
12
1/06
(c)
11/05
1/06
3/06
6
9/05
2
3
4
5
(d)
1
No. observation
11/05
2 4 6 8
No. observation
9/05
9/05
11/05
1/06
3/06
Peay KG, Bruns TD, Kennedy PG, Bergemann SE, Garbelotto M. 2007. A strong speciesarea relationship for eukaryotic soil microbes: island size matters for
ectomycorrhizal fungi. Ecology Letters 10: 470-480.