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Powerpoint Bemutató Mezőfi et al., 2020: Beyond polyphagy and opportunism: natural prey of hunting spiders in the canopy of apple trees. Supplemental figures Arboreal hunting spider assemblage 1.72 2 GLM-g, F1,647 = 235.74, P < 0.001, R = 0.23 exp(-0.82 + 0.526x) 4 Season: Spring Summer 3 Fall 2 1.13 Prey width (mm)Prey thorax 1 0 0 1 2 3 Spider prosoma width (mm) Figure S1: Relationship between spider prosoma and prey thorax widths (jittered, N=649) for the arboreal hunting spider assemblage. On the marginal boxplots red squares indicate the mean values. Spring 16 1 2 3 4 5 6 7 8 9 10 11 13 Prey taxa Spiders N=325 C.xanth O.salt Ph.cesp E.tri Xys Club Prey Natural economic enemy Neutral Pest Figure S2: Spring aspect (N=325); throphic interactions between the most abundant hunting spider groups and the arthropod community in the canopy of apple trees in spring. The middle bars represent spider groups and upper and bottom bars represent the spiders’ prey divided taxonomically and according their economic status. The width of the links between the trophic levels depict the frequency of interactions and bar widths indicate the relative abundance of each category. Numbers refer to following prey taxa: 1 Acari, 2 Araneae, 3 Coleoptera, 4 Lepidoptera, 5 Formicidae, 6 Other Hymenoptera, 7 Brachycera, 8 Nematocera, 9 Auchenorrhyncha, 10 Heteroptera, 11 Sternorrhyncha, 13 Neuroptera, 16 Trichoptera; Spiders: C.xanth = Carrhotus xanthogramma, O.salt = Other salticids, Ph.cesp = Philodromus cespitum, E.tri = Ebrechtella tricuspidata, Xys = Xysticus spp., Club = Clubiona spp. Summer 13 15 1 2 3 4 5 6 7 8 9 10 11 12 14 Prey taxa Spiders N=325 C.xanth O.salt Ph.cesp E.tri Xys Club Prey economic Natural enemy Neutral Pest Figure S3: Summer aspect (N=325); throphic interactions between the most abundant hunting spider groups and the arthropod community in the canopy of apple trees in summer. The middle bars represent spider groups and upper and bottom bars represent the spiders’ prey divided taxonomically and according their economic status. The width of the links between the trophic levels depict the frequency of interactions and bar widths indicate the relative abundance of each category. Numbers refer to following prey taxa: 1 Acari, 2 Araneae, 3 Coleoptera, 4 Lepidoptera, 5 Formicidae, 6 Other Hymenoptera, 7 Brachycera, 8 Nematocera, 9 Auchenorrhyncha, 10 Heteroptera, 11 Sternorrhyncha, 12 Ephemeroptera, 13 Neuroptera, 14 Psocoptera, 15 Thysanoptera; Spiders: C.xanth = Carrhotus xanthogramma, O.salt = Other salticids, Ph.cesp = Philodromus cespitum, E.tri = Ebrechtella tricuspidata, Xys = Xysticus spp., Club = Clubiona spp. Fall 2 3 4 5 6 7 8 9 10 11 14 Prey taxa Ph . Spiders cesp N=134 C.xanth O.salt E.tri Xys Club Prey economic Natural enemy Neutral Pest Figure S4: Fall aspect (N=134); throphic interactions between the most abundant hunting spider groups and the arthropod community in the canopy of apple trees in fall. The middle bars represent spider groups and upper and bottom bars represent the spiders’ prey divided taxonomically and according their economic status. The width of the links between the trophic levels depict the frequency of interactions and bar widths indicate the relative abundance of each category. Numbers refer to following prey taxa: 2 Araneae, 3 Coleoptera, 4 Lepidoptera, 5 Formicidae, 6 Other Hymenoptera, 7 Brachycera, 8 Nematocera, 9 Auchenorrhyncha, 10 Heteroptera, 11 Sternorrhyncha, 14 Psocoptera; Spiders: C.xanth = Carrhotus xanthogramma, O.salt = Other salticids, Ph.cesp = Philodromus cespitum, E.tri = Ebrechtella tricuspidata, Xys = Xysticus spp., Club = Clubiona spp. A Spiders B Prey of spiders C Prey-predator ratio 4 4 ) ) ratio mm ( 2 mm 3 ( 3 width width 2 2 prosoma - 1 Thorax Prosoma 1 1 Thorax 0 B A B 0 B A A 0 AB B A Spring Summer Fall Spring Summer Fall Spring Summer Fall Season Season Season Figure S5: Seasonal variation in spider prosoma width (A), prey thorax width (B) and the prey thorax and spider prosoma ratio (C). On the boxplots red squares indicate the mean values. Different capital letters indicate significant differences between the seasons at P < 0.05 level. Carrhotus xanthogramma Philodromus cespitum 2.0 1.5 ratio 1.0 prosoma - horax T 0.5 0.0 juveniles adults juveniles adults Figure S6: Prey thorax and spider prosoma ratios (jittered) for the juveniles and adults of C. xanthogramma and Ph. cespitum. Note that adults comprise both the subadult and adult individuals. Red square – mean; black horizontal solid line – median; black vertical rectangle – interquartile range. Diptera and Sternorrhyncha prey of C. xanthogramma Diptera and Sternorrhyncha prey of Ph. cespitum 2 2 GLM-g, F1,71 = 40.77, P < 0.001, R = 0.3 GLM-g, F1,18 = 9.41, P = 0.007, R = 0.4 2 2 GLM-g, F1,29 = 27.5, P < 0.001, R = 0.22 GLM-g, F1,35 = 8.09, P = 0.007, R = 0.12 4 2 4 2 Prey: GLM-g, F1,62 = 32.62, P < 0.001, R = 0.45 Prey: GLM-g, F1,19 = 0.2, P = 0.659, R = 0.01 Brachycera Brachycera Nematocera Nematocera Sternorrhyncha Sternorrhyncha 3 3 exp(-0.578 + 0.54x) exp(-0.416 + 0.48x) exp(-1.41 + 0.746x) exp(-1.188 + 0.66x) exp(-0.913 + 0.273x) 2 2 Prey Prey thorax width (mm) Prey thorax width (mm) 1 1 0 0 0 1 2 3 0 1 2 3 Spider prosoma width (mm) Spider prosoma width (mm) Figure S7: Relationship between spider prosoma and prey thorax widths (jittered) for the two most abundant arboreal hunting spider species, Carrhotus xanthogramma and Philodromus cespitum, and their main prey taxa (Brachycera, Nematocera and Sternorrhyncha) in apple orchards. On the marginal boxplots red squares indicate the mean values..
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