Ecological Archives E089-081-A2

Pamela Kittelson, John Maron, and Marilyn Marler. 2008. An invader differentially affects leaf physiology of two natives across a gradient in diversity. Ecology 89:1344–1351.

Appendix B. MANCOVAs for (A) Monarda fistulosa and (B) Koeleria macrantha on the three leaf trait factors.

TABLE B1. MANCOVAs for (A) Monarda fistulosa on the three leaf trait factors: (1) Average % leaf N, δ13C,  and C:N; (2) Average LDMC; (3) Average SLA, and (B) Koeleria macrantha on the three leaf trait factors: (1) Average N and C:N with δ13C; (2) Average SLA with δ13C; (3) Average LDMC. The whole model was significant for M. fistulosa and K. macrantha (Wilks’ lambda F = 0.19; df = 92; P = 0.05; df = 94, F = 3.1, P < 0.0001, respectively). No two-, three-, or four-way interactions with block were significant for either model and are not listed.

A)

 

F

df

P

Knapweed subplot

6.61

2, 11

0.01

Water treatment

4.54

2, 11

0.04

FR

3.13

4, 22

0.04

Block

2.03

4, 22

0.13

Knapweed × water

0.23

2, 11

0.80

Knapweed × FR

1.67

4, 22

0.35

Water × FR

0.29

4, 22

0.88

Knapweed × water × FR

0.39

4, 22

0.81

B)

 

F

df

P

Knapweed subplot

4.02

2, 23

0.04

Water treatment

4.64

2, 23

0.02

FR

7.83

6, 46

<0.001

Block

2.49

4, 46

0.06

Knapweed × water

0.97

2, 23

0.39

Knapweed × FR

0.46

6, 46

0.83

Water × FR

1.24

6, 46

0.31

Knapweed × water × FR

1.24

6, 46

0.66


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