Ecological Archives E094-059-A5
Peter C. le Roux, Jonathan Lenoir, Loïc Pellissier, Mary S. Wisz, Miska Luoto. 2013. Horizontal, but not vertical, biotic interactions affect fine-scale plant distribution patterns in a low-energy system. Ecology 94:671–682. http://dx.doi.org/10.1890/12-1482.1
Appendix E. Spearman rank correlation between species prevalence and the combined importance of vertical or horizontal biotic interactions.
Table E1. The correlation (as measured by the Spearman rank correlation) between species prevalence and the combined importance of vertical or horizontal biotic interactions, as calculated using generalized linear models (GLM), generalized additive models (GAM), and boosted regression trees (BRT).
|
|
Vertical interactions |
|
Horizontal interactions |
||
|
Technique |
rs |
p |
|
rs |
p |
Species occurrence |
|
|
|
|
|
|
GLM |
-0.399 |
0.010 |
0.093 |
0.562 |
||
GAM |
-0.283 |
0.073 |
0.233 |
0.142 |
||
BRT |
-0.561 |
< 0.01 |
0.267 |
0.092 |
||
Species cover |
||||||
GLM |
-0.566 |
< 0.01 |
-0.033 |
0.839 |
||
GAM |
-0.537 |
< 0.01 |
0.054 |
0.736 |
||
|
BRT |
-0.365 |
0.019 |
|
0.177 |
0.267 |