Ecological Archives A025-045-A3

Jennifer C. Geib, James P. Strange, Candace Galen. 2015. Bumble bee nest abundance, foraging distance, and host-plant reproduction: implications for management and conservation. Ecological Applications 25:768–778. http://dx.doi.org/10.1890/14-0151.1

Appendix C. Four ANOVA and ANCOVA tables for statistical analyses discussed in Results.

Table C1. ANOVA testing for differences in total estimated colony abundance (effective colony abundance, Nc) of Bombus species on Pennsylvania Mountain, CO. (A) test for variation in Nc among sites and among Bombus species, (B) test for variation in Nc among Bombus species and elevations, (C) Differences in Nc among Bombus tongue length groups and elevations.

 

Source

df

SS

F Ratio

Prob > F

A)

site

3

5.37

1.37

.3135

 

species

3

15.58

3.97

.0468

 

error

9

11.77

 

 

B)

species

3

15.58

5.03

.0302

 

elevation

1

3.77

3.65

.0924

 

species*elevation

3

5.11

1.65

.2541

 

error

8

8.26

 

 

C)

tongue

2

14.47

6.74

.0140

 

elevation

1

4.65

4.33

.0642

 

tongue*elevation

2

3.74

1.74

.2247

 

error

10

10.74

 

 

 

Table C2. ANOVA for variation in (A) mean separation distance between sisters of each Bombus species and (B) mean foraging distance among Bombus species.

 

Source

df

SS

F Ratio

Prob > F

A) Mean separation distance between sisters of each Bombus species

 

species

3

498941

4.86

0.0046

 

error

54

1847680

 

 

B) Mean foraging distance among Bombus species

 

species

3

69299

4.20

0.0096

 

error

54

296797

 

 

 

Table C3. ANCOVA testing for relationships between clover reproductive rates and (A-C) habitat-level nest abundance (Nc) of B. balteatus, and (D-F) clover reproductive rates and habitat-level summed Nc for all Bombus species.

 

Source

df

Type III SS

F Ratio

Prob > F

 

 

Source

df

Type III SS

F Ratio

Prob > F

A) Mean fruits/flower and B.balteatus Nc

 

D) Mean fruits/flower and ΣNc

Whole model

 

 

 

 

 

Whole model

 

 

 

 

 

Nc

1

0.684

9.48

0.0023

 

 

ΣNc

1

2.182

31.73

<.0001

 

plant species

1

0.043

0.60

0.4404

 

 

plant species

1

0.037

0.55

0.4607

 

Nc * plant species

1

0.542

7.51

0.0065

 

 

ΣNc* plant species

1

0.171

2.48

0.1162

 

error

321

23.17

 

 

 

 

error

321

22.08

 

 

T. dasyphyllum

 

 

 

 

 

 

 

 

 

 

 

 

Nc

1

0.004

0.06

0.8021

 

 

 

 

 

 

 

 

error

156

9.968

 

 

 

 

 

 

 

 

 

T. parryi

 

 

 

 

 

 

 

 

 

 

 

 

Nc

1

1.260

15.76

0.0001

 

 

 

 

 

 

 

 

error

165

13.21

 

 

 

 

 

 

 

 

 

B) Mean seeds/fruit and B.balteatus Nc

 

E) Mean seeds/fruit and ΣNe

Whole model

 

 

 

 

 

Whole model

 

 

 

 

 

Nc

1

0.218

1.35

0.2462

 

 

ΣNc

1

0.002

0.01

0.9139

 

plant species

1

0.377

2.34

0.1273

 

 

plant species

1

0.250

1.54

0.2149

 

Nc * plant species

1

0.011

0.07

0.7984

 

 

ΣNc * plant species

1

0.066

0.41

0.5229

 

error

321

51.79

 

 

 

 

error

321

51.95

 

 

C) Mean seeds/flower and B.balteatus Nc

 

F) Mean seeds/flower and ΣNc

Whole model

 

 

 

 

 

Whole model

 

 

 

 

 

Nc

1

0.233

2.91

0.0889

 

 

ΣNc

1

0.192

2.40

0.1221

 

plant species

1

0.097

1.21

0.2722

 

 

plant species

1

0.073

0.91

0.3409

 

Nc* plant species

1

0.074

0.92

0.3380

 

 

ΣNc * plant species

1

0.058

0.73

0.3944

 

error

321

25.65

 

 

 

 

error

321

25.71

 

 


 

Table C4. ANCOVA testing for relationships between clover reproductive rates and (A-C) habitat-level forager abundance (Ni) of B. balteatus, and (D-F) habitat-level summed Nifor all Bombus species.

 

Source

df

Type III SS

F Ratio

Prob > F

 

 

Source

df

Type III SS

F Ratio

Prob > F

A) Mean fruits/flower and B.balteatus Ni

 

D) Mean fruits/flower and ΣNi

Whole model

 

 

 

 

 

Whole model

 

 

 

 

 

Ni

1

0.709

9.81

0.0019

 

 

ΣNi

1

1.750

25.15

<.0001

 

plant species

1

0.036

0.50

0.4812

 

 

plant species

1

0.157

2.25

0.1343

 

Ni * plant species

1

0.500

6.91

0.0090

 

 

ΣNi * plant species

1

0.294

4.22

0.0407

 

error

321

23.20

 

 

 

 

error

321

22.34

 

 

T. dasyphyllum

 

 

 

 

 

T. dasyphyllum

 

 

 

 

 

Ni

1

0.009

0.14

0.7087

 

 

ΣNi

1

0.295

4.76

0.0307

 

error

156

9.963

 

 

 

 

error

156

9.677

 

 

T. parryi

 

 

 

 

 

T. parryi

 

 

 

 

 

 

Ni

1

1.230

15.28

0.0001

 

 

ΣNi

1

1.800

23.45

<.0001

 

error

165

13.24

 

 

 

 

error

165

12.67

 

 

B) Mean seeds/fruit and B.balteatus Ni

 

E) Mean seeds/fruit and ΣNi

Whole model

 

 

 

 

 

Whole model

 

 

 

 

 

Ni

1

0.149

0.92

0.3378

 

 

ΣNi

1

0.135

0.84

0.3603

 

plant species

1

0.376

2.33

0.1281

 

 

plant species

1

0.143

0.89

0.3465

 

Ni* plant species

1

0.012

0.08

0.7829

 

 

ΣNi * plant species

1

0.046

0.28

0.5954

 

error

321

51.86

 

 

 

 

error

321

51.83

 

 

C) Mean seeds/flower and B.balteatus Ni

 

F) Mean seeds/flower and ΣNi

Whole model

 

 

 

 

 

Whole model

 

 

 

 

 

Ni

1

0.187

2.33

0.1275

 

 

ΣNi

1

0.366

4.61

0.0326

 

plant species

1

0.086

1.07

0.3023

 

 

plant species

1

0.109

1.37

0.2424

 

Ni * plant species

1

0.063

0.79

0.3748

 

 

ΣNi * plant species

1

0.096

1.21

0.2727

 

error

321

25.71

 

 

 

 

error

321

25.49

 

 


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