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Table 3 Plausible models (ΔAICc < 2) explaining cumulative soil respiration

From: Temperature sensitivity of mineral soil carbon decomposition in shrub and graminoid tundra, west Greenland

Model Rank Predictor Variable No. of Parameters AICc ΔAICc AICc Model Weight Log-likelihood Log (L)
1 Temp + Moisture + Veg + Depth + Temp:Depth 7 110.9 0.0 0.30 -48.13
2 Temp + Moisture + Veg + Depth + Temp:Depth + Temp:Veg 8 111.2 0.3 0.26 -47.18
3 Temp + Veg + Moisture + Depth + Temp:Depth + Temp:Veg + Depth:Veg 9 112.2 1.3 0.16 -46.57
  1. Models that contain all four main effects (temperature (Temp), vegetation type (Veg), moisture level (Moisture), depth (Depth)), and a temperature-depth interaction (Temp:Depth) are preferred. Temperature-vegetation (Temp:Veg) and depth-vegetation (Depth:Veg) interactions are “pretending variables” that only marginally increase the likelihood that the model represents that data (Log(L)) (Additional file 3: Table S1)