Table 2. Fixed parameters estimates from GAMMs describing temporal and elevational changes in sporocarp biomass and diversity and their relationships with LSEA precipitation (mm) and temperature (°C) in P. sylvestris forest stands along an elevational gradient within a Mediterranean region (Catalonia).

Fixed terms	Year	Elevation	Precipitation	Temperature
Dependent variables
Total biomass	14.92 ± 2.85***	0.03 ± 0.65	6.74 ± 2.80**	1.52 ± 0.65**
Mycorrhizal biomass	14.22 ± 2.89***	0.12 ± 0.63	6.17 ± 2.88*	1.60 ± 0.54**
Saprotrophic biomass	0.37 ± 0.11***	−0.19 ± 0.27	2.62 ± 1.10*	0.43 ± 0.39
Total richness	2.17 ± 0.40***	0.05 ± 0.08	1.29 ± 0.44**	0.10 ± 0.12
Mycorrhizal richness	2.11 ± 0.41***	0.02 ± 0.07	1.55 ± 0.60**	0.07 ± 0.07
Saprotrophic richness	2.18 ± 0.44***	0.02 ± 0.11	2.31 ± 0.74**	−0.04 ± 0.25
Total evenness	−0.01 ± 0.01	0.02 ± 0.02	0.18 ± 0.08*	−0.02 ± 0.03
Mycorrhizal evenness	−0.01 ± 0.01	0.01 ± 0.02	0.12 ± 0.07*	−0.05 ± 0.02*
Saprotrophic evenness	0.01 ± 0.02	0.05 ± 0.02*	−0.03 ± 0.02	−0.02 ± 0.02

The dependent variables were also split by mycorrhizal and saprotrophic guilds. Estimates (±SE) are presented along with significance of each term. Significant parameters are represented in bold: *P < 0.05; **P < 0.01; ***P < 0.001.