Ecological Archives M074-006-A2

Diego P. Vázquez and Daniel Simberloff. 2004. Indirect effects of an introduced ungulate on pollination and plant reproduction. Ecological Monographs 74:281–308.

Appendix D. An ANOVA table of mixed-model analysis of the effect of cattle on absolute and relative population density.

 

 

ANOVA

 

Species

Response variable

Source

Numerator df

Denominator df

MS

F

P

ES

                 

Alstroemeria aurea

Absolute density

G

1

3

64747.0

8.40

0.0626

0.37

 

 

P

3

3

115241.0

14.95

0.0261

 

 

 

G × P

3

232

7707.6

3.06

0.0291

 

 

Relative density

G

1

3

32.0

32.00

0.0109

 

 

 

P

3

3

2.3

2.33

0.2523

 

 

 

 

 

 

 

 

 

 

Aristotelia chilensis

Absolute density

G

1

3

320178.0

60.37

0.0044

1.00

 

 

P

3

3

25982.0

4.90

0.1123

 

 

 

G × P

3

232

5303.3

1.68

0.1721

 

 

Relative density

G

1

3

10.1

2.73

0.1970

 

 

 

P

3

3

6.8

1.82

0.3175

 

 

 

 

 

 

 

 

 

 

Berberis buxifolia

Absolute density

G

1

3

58219.0

7.05

0.0767

0.34

 

 

P

3

3

9404.0

1.14

0.4588

 

 

 

G × P

3

232

8261.3

6.36

0.0004

 

 

Relative density

G

1

3

15.1

5.58

0.0991

 

 

 

P

3

3

4.6

1.69

0.3381

 

 

 

 

 

 

 

 

 

 

Berberis darwinii

Absolute density

G

1

3

24.1

0.00

0.9819

0.00

 

 

P

3

3

16211.0

0.26

0.8531

 

 

 

G × P

3

232

63095.0

16.38

<.0001

 

 

Relative density

G

1

3

8.0

2.40

0.2191

 

 

 

P

3

3

8.0

2.40

0.2455

 

 

 

 

 

 

 

 

 

 

Calceolaria crenatiflora

Absolute density

G

1

3

60.0

0.16

0.7177

0.05

 

 

P

3

3

220.0

0.58

0.6677

 

 

 

× P

3

232

380.0

2.16

0.0934

 

 

Relative density

G

1

3

0.0

0.00

1.0000

 

 

 

P

3

3

2.7

0.50

0.7082

 

 

 

 

 

 

 

 

 

 

Cynanchum diemii

Absolute density

G

1

3

99145.0

7.80

0.0683

0.36

 

 

P

3

3

105622.0

8.31

0.0578

 

 

 

G × P

3

232

12715.0

6.12

0.0005

 

 

Relative density

G

1

3

10.1

6.94

0.0780

 

 

 

P

3

3

9.0

6.17

0.0846

 

 

 

 

 

 

 

 

 

 

Gavilea odoratissima

Absolute density

G

1

3

4628.8

0.33

0.6041

0.07

 

 

P

3

3

8127.8

0.59

0.6644

 

 

 

G × P

3

232

13877.0

8.17

<.0001

 

 

Relative density

G

1

3

2.0

1.00

0.3910

 

 

 

P

3

3

2.0

1.00

0.5000

 

 

 

 

 

 

 

 

 

 

Rosa eglanteria

Absolute density

G

1

3

17306.0

1.59

0.2969

0.16

 

 

P

3

3

820.1

0.08

0.9693

 

 

 

G × P

3

232

10906.0

5.37

0.0014

 

 

Relative density

G

1

3

4.5

2.16

0.2380

 

 

 

P

3

3

10.3

4.92

0.1170

 

 

 

 

 

 

 

 

 

 

Ribes magellanicum

Absolute density

G

1

3

171254.0

7.55

0.0708

0.35

 

 

P

3

3

45369.0

2.00

0.2916

 

 

 

G × P

3

232

22671.0

9.56

<.0001

 

 

Relative density

G

1

3

24.5

11.31

0.0436

 

 

 

P

3

3

3.7

1.69

0.3381

 

 

 

 

 

 

 

 

 

 

Schinus patagonicus

Absolute density

G

1

3

889.4

0.01

0.9221

0.01

 

 

P

3

3

78445.0

0.99

0.5024

 

 

 

G × P

3

232

79027.0

28.09

<.0001

 

 

Relative density

G

1

3

18.0

2.84

0.1904

 

 

 

P

3

3

1.7

0.26

0.8491

 

 

 

 

 

 

 

 

 

 

Vicia nigricans

Absolute density

G

1

3

16434.0

0.76

0.4468

0.11

 

 

P

3

3

18110.0

0.84

0.5552

 

 

 

G × P

3

232

21556.0

6.53

0.0003

 

 

Relative density

G

1

3

0.5

0.05

0.8437

 

 

 

P

3

3

3.0

0.28

0.8402

 

   Notes: Tests were conducted on data ranks. For absolute density, main effects of grazing (G) and pair (P) and their interaction (G × P) are given, together with the standardized effect size (ES); for relative density, only main effects are given (interaction cannot be calculated because of lack of replicates within sites; see methods). P values <0.1 are in bold.



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