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Table 3 Regression models to test for the most parsimonious associations with (δ13C A. araneoides - δ13Cbaseline).

From: Spurious and functional correlates of the isotopic composition of a generalist across a tropical rainforest landscape

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
  1. The most parsimonious model is indicated by *. All significant relationships were positive.