DOI: 10.5061/dryad.fxpnvx10p
title: Data from: Mast seeding in European beech (Fagus sylvatica L.) is associated with reduced fungal sporocarp production and community diversity

description: A time series of seed production data from European beech (Fagus
 sylvatica) was combined with a fungal census (1977 to 2006) from La
 Chanéaz Fungus Reserve to evaluate the relationship between mast seeding
 and fungal resource availability. Annual fungal species' counts,
 traits, contemporaneous weather and seed production data are available
 here, alongside the code used to complete the analyses.
description: The fungal census was conducted in the 75-hectare La Chanéaz
 Fungal Reserve, established in 1975, near Payerne, Switzerland (Swiss
 Federal Institute for Forest, Snow and Landscape Research WSL; 46 degrees
 47’ 55” to 46 degrees 48’ 10” N and 6 degrees 59’ 52” to 7 degrees 00’ 30”
 E (Straatsma <em>et al.</em> 2001). The site is an old-growth
 forest on the Swiss Central Plateau (mean altitude 585-m), dominated by
 multi-story beech (<em>Fagus sylvatica)</em>, with
 interspersed spruce (<em>Picea abies</em>), larch
 (<em>Larix decidua</em>), oak (<em>Quercus
 robur</em>), pine (<em>Pinus sylvestris </em>and
 <em>Pinus strobus</em>), maple (<em>Acer
 pseudoplatanus</em>) and ash (<em>Fraxinus
 excelsior</em>) growing on calcaric cambisol. The study area was
 enclosed by 2-m fences to deter mushroom pickers and other animals from
 harvesting the fruiting fungi. From 1975–2006, a total of 115,417 epigeous
 sporocarps from fungi with macroscopic sporocarps were recorded and
 identified. Surveys were conducted on a weekly basis, during the May to
 November growing season, among five 300 m<sup>2</sup> plots.
 These plots were subdivided into three 100 m<sup>2</sup>
 subplots, each of which experienced a distinct mushroom surveying /
 harvesting procedure: picking, cutting, and no harvest. From the years
 1980–1983, only edible species were recorded. European
 beech seed production data were compiled from the MASTREE+ database (10.1111/gcb.16130). We compiled all &gt;5-year records of seed production within the ‘southern region’ identified by Vacchiano et al (2017, 10.1111/nph.14600) resulting in 80 unique time series of beech seed production.  To combine these datasets, we standardized each dataset to its range, resulting in a seed production score from 0-1 for each year. We used the annual mean of datasets as the region-level index of mast seeding. Historical daily precipitation and temperature data from 1977–­2006 were compiled from the nearest weather station (Meteo Payerne, 7 km away; 46 degrees 48’ 42” N, 6 degrees 56’ 33” E; 490 m altitude) of the Federal Office of Meteorology and Climatology, MeteoSwiss (http://www.meteoschweiz.admin). Daily temperature and precipitation were averaged across the years.  Fungal traits for all taxa were compiled from Knudsen and Vesterholt (2008) and Breitenbach and Kränzlin (1991, 1994, 2000, 2005). The following sporocarp traits were extracted from the texts: nutritional mode or guild (i.e., saprotroph or ectomycorrhizal), mean spore breadth and volume, calculated from spore breadth and length assuming an ellipsoidal shape, mean cap area calculated from mean diameter, sporocarp biomass calculated from mean cap area. The FungalTraits database and expert knowledge were also used to assign guild to species (10.1007/s13225-020-00466-2).
description: # Data from: Mast seeding in European beech (Fagus sylvatica L.) is
 associated with reduced fungal sporocarp production and community
 diversity
 [https://doi.org/10.5061/dryad.fxpnvx10p](https://doi.org/10.5061/dryad.fxpnvx10p) Dataset includes fungal census data, environmental data, beech seed production data, and fungal species trait data. ## Description of the data and file structure Four files containing relevant data are included. The first to be called in the code is environmental dataset ("env.csv"), which contains mean annual temperature (meanTemp), precipitation (meanPrecip), and beech seed production data (prod) for 1977–2006. The second dataset is the fungal census data ("census.csv"), which contains sums of weekly counts of fungal species from 1977–2006. Column names are as follows: pl.id is the plot identifier (one of five), spl.id is the subplot identifier (one of three per plot), year.id is year, Species.name is species, count is the number of fruitbodies observed on a weekly basis for that species in that year, ecol_red is the guild of fungus (saprotrophic versus ectomycorrhizal), prod is beech seed production, meanTemp is mean annual temperature (centigrade), meanPrecip is mean annual precipitation (millimeter). The third dataset contains census plot (pl.id) x subplot (spl.id) x year (year.id) combinations that are used to infer non-observations of species. The fourth dataset contains trait data for the fungal species. Species.name is species, biomassPer is the biomass in milligrams inferred from cap area, GENUS is the fungal genus, Ectomycorrhiza_exploration_type_template is the exploration type of ectomycorrhizal species, freq is the frequency that a species across the census (summed presence/absence at the subplot level), meanWeek is the mean week number a species was observed, Spore_vol is the mean volume of the spore in cubic micrometers, nitro is ectomycorrhizal species' nitrophobicity (tol = tolerant, phob = nitrophobic), ecol_red is guild, Spore_b is mean spore breadth in micrometers. Missing data is denoted by "NA". ## Code/Software Code to reproduce the findings and figures in the associated study was developed in R 4.3.0 ("codeForSubmission.R"). 10 packages were loaded: dplyr 1.1.4 ggplot2 3.5.0 patchwork 1.2.0 glmmTMB 1.1.9 ggeffects 1.5.1 corrplot 0.92 vegan 2.6-4 jtools 2.2.2 DHARMa 0.4.6