Ecological Archives M074-006-A5

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

Appendix G. An ANOVA table of mixed-model analysis of the effect of cattle on plant reproduction for four species whose density was significantly lower in grazed sites.

 
 
 

ANOVA

Species

Year

Variable

Source

Numerator df

Denominator df

MS

F

P

                 

Alstroemeria aurea

1999–2000

Fruits per flower

G

1

3

702279.0

6.08

0.0889

 
 
 

P

3

3

281560.0

2.30

0.2555

 
 
 

× P

3

590

122221.0

7.69

<.0001

 
 

Seeds per fruit

G

1

3

28487.0

2.95

0.1835

 
 
 

P

3

3

5745.4

0.58

0.6672

 
 
 

G × P

3

152

9906.9

5.45

0.0014

 
 

Seeds per flower

G

1

3

27385.0

3.72

0.1480

 
 
 

P

3

3

8544.0

1.13

0.4599

 
 
 

G × P

3

152

7531.3

4.16

0.0073

 

2000–2001

Fruits per flower

G

1

3

3476925.0

3.42

0.1591

 
 
 

P

3

3

2144566.0

1.60

0.3540

 
 
 

G × P

3

990

1338633.0

25.17

<.0001

 
 

Seeds per fruit

G

1

3

3684123.0

10.52

0.0413

 
 
 

P

3

3

340750.0

0.77

0.5813

 
 
 

× P

3

948

440771.0

6.25

0.0003

 
 

Seeds per flower

G

1

3

4703186.0

6.36

0.0824

 
 
 

P

3

3

1097257.0

1.14

0.4571

 
 
 

G × P

3

948

958522.0

14.48

<.0001

 
 
 
 
 
 
 
 
 

Aristotelia chilensis

1999–2000

Fruits per flower

G

1

2

2142.86

7.05

0.0963

 
 
 

P

2

2

942.16

3.19

0.2647

 
 
 

G × P

2

63

298.37

0.79

0.4580

 

2000–2001

Fruits per flower

G

1

3

3136.9

3.51

0.1321

 
 
 

P

3

3

6343.0

7.85

0.0622

 
 
 

× P

3

160

808.0

0.35

0.7906

 
 

Seeds per fruit

G

1

3

124.4

0.01

0.9317

 
 
 

P

3

3

5636.8

0.38

0.7786

 
 
 

G × P

3

154

15003.0

8.09

<.0001

 
 

Seeds per flower

G

1

3

4014.3

1.13

0.3611

 
 
 

P

3

3

7206.9

1.99

0.2927

 
 
 

G × P

3

154

3615.9

1.77

0.1560

 
 
 
 
 
 
 
 
 

Cynanchum diemii

1999–2000

Fruits per flower

G

1

2

1732.5

3.05

0.2218

 
 
 

P

2

2

744.5

0.65

0.6050

 
 
 

G × P

2

63

1140.6

2.26

0.1124

 

2000–2001

Fruits per flower

G

1

2

319.4

0.20

0.6970

 
 
 

P

2

2

556.4

0.35

0.7420

 
 
 

× P

2

65

1600.0

5.11

0.0087

 
 

Seeds per fruit

G

1

2

325.2

0.63

0.5100

 
 
 

P

2

2

132.9

0.25

0.7987

 
 
 

G × P

2

32

527.3

5.92

0.0065

 
 

Seeds per flower

G

1

2

21.3

0.19

0.7069

 
 
 

P

2

2

420.4

3.66

0.2147

 
 
 

G × P

2

32

114.9

1.04

0.3651

 
 
 
 
 
 
 
 
 

Ribes magellanicum

1999–2000

Fruits per flower

G

1

3

23.8

0.06

0.8179

 
 
 

P

3

3

298.8

0.75

0.5895

 
 
 

G × P

3

68

396.9

1.65

0.1865

 

2000–2001

Fruits per flower

G

1

3

243.7

2.73

0.1531

 
 
 

P

3

3

77.1

1.00

0.5000

 
 
 

G × P

3

61

77.1

0.50

0.6863

   Notes: Tests were conducted on data ranks. Main effects of grazing (G) and pair (P) and their interaction (G × P) are given. P values <0.1 are in bold.



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