DOI: 10.5281/zenodo.4664513
title: Data, script, full methods and full results for: Rising temperature modulates pH niches of fen species

description: This package presents data, script, full methods and full results for the paper entitled Rising temperature modulates pH niches of fen species<strong> </strong> (under review). The aim of the paper is to model water level, temperature and pH niches at the European scale for 100 fen specialised taxa the best characterising European fens. We explicitly tested the hypothesis that macroclimate temperature modulates pH niches of the fen species, making calcicole species the most endangered. The data are presented as working data sheet, i.e., the presence-absence data for 100 tested species in 29,885 plots (the number after the heterogeneity-constrained resampling), supplemented by environmenal variables (GDD5, Minimum temperature of the coldest month, adjusted pH, indication of water table depth). The methods of data preparation, including selection of vegetation-plot data from European Vegetation Archive are described in a separate file. The list of used vegetation-plot databases, their GIVD codes and names of custodians are in separate table (Table 1: Data sources). We further present the R script used for data analysis and detailed results of niche modelling for all tested species.These full results are presented as contour plots representing GAM models of all fen species in relation to pH and climate temperature, with indicated number of samples and occurrence probabilities for individual cells defined as a part of pH temperature gradients. Adjusted r2 and pH ⨯ temperature interaction coefficients are presented. In addition, the GAMs of occurrence probabilities with respect to water table depths estimated by indicator values are presented for all individual fen species. The sheet showing descriptive statistics for individual taxa and the entire results of the Generalised Additive Models is uploaded as Supplementary_Table_1_CSV.
description: This is the update of Hájek et al. 2021a; doi: 10.5281/zenodo.4664514.
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