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Table 3 Rankings and relative support for models that quantify the role of microrefuges in pika occurrence

From: Microrefuges and the occurrence of thermal specialists: implications for wildlife persistence amidst changing temperatures

Model K AICc Δ AICc W j E j
Subsurface microrefuge (magnitude) 2 45.65 0.00 0.81 n/a
Interstitial temperature (variation) 2 50.52 4.87 0.07 11.60
Subsurface microrefuge (variation) 2 52.55 6.90 0.03 27.00
Surface temperature (magnitude) 3 52.56 6.91 0.03 27.00
Interstitial temperature (magnitude) 2 52.82 7.18 0.02 40.50
Local habitat - Cos(Aspect) 2 52.89 7.24 0.02 40.50
Surface temperature (variation) 2 53.16 7.51 0.02 40.50
Local habitat - Slope + Elevation + Cos(Aspect) 4 55.81 10.16 0.01 81.00
  1. Model-selection parameters from competing models used to examine the effects of microrefuges and surface temperatures on American pika (Ochotona princeps) occurrence in western Wyoming, USA, June – October, 2010 – 2012; K, number of parameters in the model; AICc, Akaike Information Criterion corrected for small samples; Δ AICc, difference for model relative to the smallest AICc in the model set; W j, Akaike weight is the approximate probability in favor of the given model from the set of models considered; E j represents the weight of evidence in support of a model, compared to the top ranked model (W jTop/W ji)