Table 3 |
||||
|
Regression models to test for the most parsimonious associations with (δ13CA. araneoides - δ13Cbaseline). |
||||
|
Model (independent factors) |
r2 |
SS |
p |
AIC |
|
|
||||
|
Leaf litter decomposition rate |
0.216 |
0.07 |
0.293 |
-19.66 |
|
|
||||
|
Log (mass, standing litter) |
< 0.01 |
< 0.001 |
0.987 |
-17.96 |
|
|
||||
|
Total soil P (0-10 cm depth) |
0.183 |
0.06 |
0.339 |
-19.36 |
|
|
||||
|
Colony size |
0.329 |
0.10 |
0.179 |
-20.74 |
|
|
||||
|
Colony growth |
0.002 |
< 0.001 |
0.917 |
-17.97 |
|
|
||||
|
Litter-ant density |
0.003 |
0.03 |
0.908 |
-17.98 |
|
|
||||
|
Litter-ant richness |
0.014 |
0.004 |
0.799 |
-18.06 |
|
|
||||
|
Total soil P, colony size |
0.394 |
0.12 |
0.366 |
-19.47 |
|
|
||||
|
Total soil P, leaf litter decomposition rate |
0.399 |
0.12 |
0.361 |
-19.52 |
|
|
||||
|
Leaf litter decomposition rate, colony size |
0.907 |
0.28 |
0.009 |
-32.61* |
|
|
||||
|
Total soil P, leaf litter decomposition rate, colony size |
0.929 |
0.28 |
0.032 |
-32.42 |
|
|
||||
|
The most parsimonious model is indicated by *. All significant relationships were positive. |
||||
|
McGlynn et al. BMC Ecology 2009 9:23 doi:10.1186/1472-6785-9-23 |
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