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Table 2 Three top-weighted models explaining median T air values in wing-drooping behaviour (wing 50) using both generalized linear models (GLS) and phylogenetic independent analyses (PGLS). The global model included: log10 body mass (log10 M b); proportion of observations where birds were mobile (prop_act), and exposed to full sun (prop_sun) at air temperatures between 35 and 40 °C (see methods for details); drinking dependency; foraging location; and diet as independent variables. Only the variables that were influential in the three top weighted models are shown. For each variable we provide the contrast (± standard error), and significance level (see footnote below Table)

From: Behavioural responses to heat in desert birds: implications for predicting vulnerability to climate warming

  Model
1 2 3
  GLS
log10 M b −3.18 ± 1.12** −3.03 ± 1.12** −3.43 ± 1.38**
Drinking dependency (non-drinking)   0.26 ± 0.76  
prop_act    −0.42 ± 1.31
Intercept 43.24 ± 1.69** 42.83 ± 2.08** 43.78 ± 2.42**
Observations 30 30 30
AICc 120.4 122.3 122.3
  PGLS
log10 M b −2.60 ± 1.47   
Proportion sun    −1.73 ± 1.71
Intercept 41.99 ± 3.21*** 37.60 ± 2.15*** 37.98 ± 2.18***
Observations 30 30 30
AICc 129.7 130.4 131.6
  1. Note: **p < 0.01; ***p < 0.001