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Impact of flower-dwelling crab spiders on plant-pollinator mutualisms

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Academic year: 2022

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Appendix A

Fig. 1. Pictures of (A) a dried spider and (B) a paper spider.

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Appendix A

Brechbühl, Kropf & Bacher Figure 1 A

Appendix A

Brechbühl, Kropf & Bacher Figure 1 B

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Appendix A

Table 1. Minimum adequate linear mixed effects models of the reaction pollinators (time spent on inflorescences) to flower species, spider treatments (paper spiders and spider specimens were compared to the control) and covariates. NA: data from C. scabiosa only; -: variables not included in the minimum adequate model. Diameter of inflorescences was never included in the minimum adequate model.

All pollinators Bumblebees Honeybees Solitary bees Syrphid flies

t-value p t-value p t-value p t-value p t-value p

(Intercept) 7.91 <0.001 - - - - 1.94 0.062 5.32 <0.001

Flower species 1.11 0.414 NA NA NA NA - - - -

Paper spider -1.95 0.062 - - - - -0.75 0.459 -0.91 0.372

Dried Spider -3.06 0.005 - - - - -2.14 0.041 -2.47 0.019

Flower species * paper spider 0.26 0.795 - - - - - -

Flower species * dried spider 2.57 0.016 - - - -

Height - - - 1.71 0.097 - -

Spider size 1.77 0.089 - - - -

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