Ecological Archives E091-080-A1

Bradley J. Butterfield, Julio L. Betancourt, Raymond M. Turner, and John M. Briggs. 2010. Facilitation drives 65 years of vegetation change in the Sonoran Desert. Ecology 91:1132–1139.

Appendix A. Correlation matrix and standard deviations.

TABLE A1. Correlations among variables and standard deviations. These correlations do not account for within plot variation as in the SEM analysis. Open and Under are the number of recruits per year in open microsites and under existing canopies, respectively.

Variable

log(MAP)

Density

Cover

log(Open)

log(Under)

log(Dead)

log(MAP)

 

n.s.

0.26

0.35

0.55

n.s.

Density

 

 

0.33

n.s.

n.s.

0.72

Cover

 

 

 

n.s.

0.37

n.s.

log(Open)

 

 

 

 

0.60

0.25

log(Under)

 

 

 

 

 

0.21

SD

0.063

23

13

0.19

0.14

0.17


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