Ecological Archives M080-021-A2

David M. Merritt, Christer Nilsson, and Roland Jansson. 2010. Consequences of propagule dispersal and river fragmentation for riparian plant community diversity and turnover. Ecology 80:609–626.

Appendix B. Results of multiple comparison tests in cases when repeated-measures generalized or general linear models indicated a significant reach type or treatment effect.

TABLE B1. Mean ± 1 SE of variables with results of multiple comparison tests (Tukey’s adjustment) in cases when repeated measures generalized or general linear models indicated a significant reach type or treatment effect. Within reach type, different superscript letters indicate a significant difference (P ≤ 0.05).


   
Reach type
 
Treatment
     
 

Variable

 

Impounded

Free-flowing tranquil

Free-flowing turbulent

 

Water

Wind

Wind and water

Stem density (m-2)

 

54.5 ± 3.4

71.0 ± 4.9

77.3 ± 4.5

 

62.4 ± 3.3

65.5 ± 4.7

74.5 ± 4.7

Species richness

 

4.4a ± 0.20

5.9ab ± 0.26

6.5b ± 0.27

 

5.9ab ± 0.24

4.6a ± 0.23

6.4b ± 0.27

Shannon diversity (H')

0.98a ± 0.04 

1.2b ± 0.04 

1.4b ± 0.04 

 

1.2ab ± 0.04 

1.1a ± 0.04 

1.3b ± 0.04 

Shannon evenness

 

0.62a ± 0.02 

0.66ab ± 0.02 

0.71b ± 0.01 

 

0.68 ± 0.02 

0.64 ± 0.02 

0.68 ± 0.02 

Vascular plant cover (%)

14.5 ± 1.3 

19.2 ± 1.4 

20.9 ± 1.4 

 

18.5a ± 1.2 

14.1ab ± 1.1 

21.8b ± 1.6 

Bryophyte cover (%)

18.4 ± 1.3 

15.9 ± 1.6

13.1 ± 1.2 

 

17.9 ± 1.4 

15.7 ± 1.4 

14.0 ± 1.3 

Jaccard’s similarity to control plots

17.1a ± 0.99

19.8ab ± 0.84

21.2b ± 0.78

 

18.7 ± 0.82

21.0 ± 0.96

18.6 ± 0.85

Bray-Curtis similarity to control plots

7.5a ± 0.87

10.7ab ± 0.78

14.1b ± 0.76

 

10.5 ± 0.82

11.4 ± 0.85

10.8 ± 0.81



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