Table 1 Model-averaged estimates (conditional average) of best models (ΔAICc < 2) investigating the effects of plant species traits and pollinator roles in the network

From: Species traits, landscape quality and floral resource overlap with honeybees determine virus transmission in plant–pollinator networks

Response

 

Estimate

s.e.

Adj. s.e.

z value

P value

FDR P value

Species traits and roles models

BQCV load in wild pollinator

Intercept

12.05

0.58

0.58

20.65

<0.0001

 

Betweenness

−0.46

0.18

0.18

2.60

0.009

0.027

Corolla length

−0.48

0.24

0.24

2.00

0.045

0.082

d’

0.27

0.20

0.20

1.34

0.181

0.197

Dish flowers

−0.74

0.19

0.19

3.94

<0.0001

0.001

Resource overlap

2.03

0.32

0.32

6.24

<0.0001

<0.0001

Sampling round 3

−1.83

0.32

0.32

5.63

<0.0001

<0.0001

DWV-B load in wild pollinator

Intercept

8.47

0.50

0.50

16.96

<0.0001

 

Betweenness

−0.16

0.14

0.14

1.10

0.269

0.330

Corolla length

−0.19

0.17

0.17

1.11

0.268

0.330

d′

0.33

0.19

0.19

1.73

0.084

0.264

Flower volume

−0.27

0.17

0.17

1.55

0.122

0.298

Resource overlap

0.80

0.28

0.28

2.85

0.004

0.050

Sampling round 3

−0.76

0.29

0.29

2.60

0.009

0.051

Community and landscape models

BQCV load in wild pollinator

Intercept

11.45

0.83

0.83

13.73

<0.0001

 

H flowers

−0.70

0.41

0.41

1.70

0.088

0.135

HB load BQCV

1.00

0.27

0.27

3.74

0.0002

0.001

HB density

0.37

0.22

0.22

1.71

0.087

0.135

Pollinator abundance

0.84

0.36

0.36

2.33

0.020

0.051

Pollinator habitat

−0.70

0.48

0.48

1.45

0.147

0.189

Sampling round 3

−1.76

0.65

0.65

2.70

0.007

0.023

DWV-B load in wild pollinator

Intercept

0.85

0.56

0.56

15.12

<0.0001

 

H flowers

0.39

0.28

0.28

1.39

0.164

0.306

HB load DWV-B

0.44

0.23

0.23

1.92

0.055

0.202

HB density

−0.15

0.19

0.19

0.79

0.432

0.475

Pollinator abundance

0.81

0.30

0.30

2.71

0.007

0.050

Pollinator habitat

−0.61

0.38

0.38

1.60

0.109

0.298

Sampling round 3

−0.73

0.51

0.51

1.44

0.150

0.306

  1. Plant species traits and pollinator roles in the network include: CWM flower volume, CWM corolla length of plants; specialization (d′), resource overlap with honeybees (HB), proportion of dish flowers visited and weighted betweenness (Betweenness) of pollinators) or the effects of species community and landscape variables (percentage cover of pollinator habitat (%), flower Shannon diversity (H flowers), viral load in honeybees—BQCV or DWV-B—(HB load), honeybee density (HB density) and wild pollinator abundance) on viral loads of pollinator species (log-transformed, only virus-positive individuals). Sampling round was included in all models because of the data structure (two sampling rounds in each landscape). Z-tests were used to derive P values from averaged LMM. The table shows the estimates and (adjusted) standard errors (s.e., adj. s.e.), z and P values as well as P values corrected with the FDR correction.
  2. Significant results (FDR P < 0.05) are shown in bold.
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