Fig 4: Regression analysis of the number of pollen tubes on stigmas as a
function of environmental pollinator species richness. The coloured
lines and areas respectively indicate the estimated relationship and its
confidence intervals with Generalised linear mixed models, see methods
for further details.
Table 1: Output of different Generalised linear mixed models of
pollinator species richness, Connectance, individual pollinator degree.
Final models were selected through backward stepwise selection using AIC
criterion. ΔAIC reports the difference in AIC values between full and
final models. βi: regression coefficient of a given variable; χ2: chi
square values; df: degrees of freedom. P value stands for statistical
significance after log likelihood ratio test, and it is in bold if below
0.05. The regression coefficients for each of the three pollinator
species considered in interaction with the predictors in the individual
pollinator degree model correspond to a - Xylocopa fenestrata, b
-Lasioglossum albescens , and c - Braunsapis picitarsis.