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Table 1 Comparison of alternative selection models showing the number of parameters (k) in each model.

From: Predator mediated selection and the impact of developmental stage on viability in wood frog tadpoles (Rana sylvatica)

Traits in the model k AIC Δi Likelihoods w i Evidence Ratio
Preferred model 7 893.91 0 1 0.6066  
Head Height 8 895.7 1.79 0.4099 0.2478 2.4473
Tail Muscle Height 9 897.69 3.78 0.151 0.0916 6.6194
Head Height2 10 899.81 5.9 0.0523 0.0317 19.106
Tail Muscle Height2 11 901.23 7.32 0.0257 0.0156 38.8613
Tail Fin Height2 12 902.95 9.04 0.0108 0.0066 91.8356
  1. AIC score = Akaike Information Criterion; Δ I = difference in AIC scores between the best model and subsequent model; w i = normalized relative likelihood of the model given the data; Evidence Ratio = the relative odds that a model is the best given the data. The first row of the table represents the preferred model, which includes linear terms for Head Length, Tail Length, and Tailfin Height, and quadratic terms for Head Length and Tail Length (see Table 4). Subsequent rows show the influence of adding each indicated trait in succession. Traits labeled with a superscript "2" represent quadratic terms.