Summary about bryophyte, land-use intensity, productivity and indicator value data.

<p>Mean, minimum, maximum and SE of bryophyte diversity, vascular plant species, land-use measures, aboveground vascular plant biomass, nutrient content of biomass (Ca = calcium, K = potassium; Mg = magnesium, P = phosphorus; N = nitrogen), and mean Ellenberg indicator values for vascular plants for the two regions. Letters (^{a, b}) indicate significant group differences between the regions.</p

Spearman correlations of CCA-axes and environmental variables.

<p>Spearman correlations of CCA-axes and environmental variables (n = 83). Only significant correlations are shown. Levels of significance:</p>**<p> = 0.0001*</p><p> = 0.01</p><p>Factors included in CCA factors are given in bold. Further details concerning single variables are given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0051520#pone-0051520-t001" target="_blank">Table 1</a>.</p

Frequency distribution of bryophyte species.

<p>Relative frequency distribution of the species richness of all, pleurocarpous, and acrocarpous bryophyte species per 16 m² plots in grasslands (<i>n</i> = 85).</p

Relationship between species richness of bryophytes and vascular plants.

<p>Relationship between species richness of bryophytes and vascular plants (<i>n</i> = 85; y = 0.17x - 0.15; R² = 0.47; F = 74.1; P<0.0001).</p

Relationships between bryophyte species richness and intensities of land-use and productivity.

<p>Relationships between total bryophyte species richness and intensities of land-use practices, mean annual amount of N fertilizer [kg*ha⁻¹*year⁻¹]; mean annual number of cuts [Cuts*year⁻¹] from 2006–2008, aboveground community biomass of vascular plants [g*m⁻²], Nitrogen concentrations in biomass [[g/kg⁻¹]], mean Ellenberg indicator values for vascular plants for nutrients (N) and for moisture (M) on 85 grassland plots.</p

Summaries of multiple regression analyses.

<p>Summaries of multiple regressions of species richness of acrocarpous, pleurocarpous and all bryophytes as well as bryophyte cover on intensities of land-use procedures (Model A); aboveground biomass and their nutrient content (Model B), and mean Ellenberg indicator values for vascular plants (Model C) in the two regions. Levels of significance:</p>***<p> = p<0.0001;</p>**<p> = 0.0001*</p><p> = 0.01</p><p>Further details concerning single variables are given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0051520#pone-0051520-t001" target="_blank">Table 1</a>.</p

CCA-ordination of bryophyte species richness and environmental variables for stands (a) and species (b).

<p>CCA-ordination of bryophyte species and environmental factors in grasslands (n = 83). Stands and environmental factors (a) and species (b) of the same ordination are plotted separately to ease readability. Hainich-Dün: open circles; Schorfheide-Chorin: stars. Plots in the dotted circle are situated on either Gleyosols or Histisols. N and K are nutrient concentrations in aboveground vascular plant biomass and Ellenberg indicator values given are gained from vascular plant vegetation. Longer vectors indicate stronger correlations between variables and axes. See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0051520#pone-0051520-t001" target="_blank">Table 1</a> for further details on single variables.</p

Summary of ANCOVA models of isotopic abundances testing for relationships with the time since certification (only organic plots, <i>n</i> = 21).

a<p>Significance levels: ***  = <i>p</i><0.001; **  = 0.001<<i>p</i><0.01; *  = 0.01<<i>p</i><0.05.</p><p>“Grassland type”  =  pasture, meadow or mown pasture.^a</p

δ¹³C abundances in soil of a) organic vs. conventional grasslands and b) organic grasslands in relation to the time since certification (<i>r</i>_s = −0.70; <i>p</i><0.001).

<p>Letters indicate significant group differences according to ANOVA analyses (for details see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0078134#pone-0078134-t001" target="_blank">Table 1</a> & <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0078134#pone-0078134-t002" target="_blank">2</a>).</p

Results of quadratic discriminant analysis (QDA) of management types (organic vs. conventional) deduced from regionally standardized δ¹⁵N and δ¹³C isotopic abundances of soil and/or hay samples of grasslands.

<p>Results of quadratic discriminant analysis (QDA) of management types (organic vs. conventional) deduced from regionally standardized δ¹⁵N and δ¹³C isotopic abundances of soil and/or hay samples of grasslands.</p