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Table 1 Three top-weighted models explaining median T air values in panting/gular flutter behaviour (pant 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 temperature 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 note 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 −5.62 ± 1.56** −5.06 ± 1.57** −5.29 ± 1.56**
prop_act −7.69 ± 1.91** −7.79 ± 1.97** −6.73 ± 2.02**
Drinking dependency (non-drinking) 3.12 ± 0.81** 2.94 ± 0.83** 3.12 ± 0.80**
Foraging location (terrestrial) 1.32 ± 0.79   1.54 ± 0.79
prop_sun    2.86 ± 2.20
Intercept 48.30 ± 3.15** 48.20 ± 3.26** 46.57 ± 3.38**
Observations 30 30 30
AICc 136.4 136.4 137.8
  PGLS
prop_act    −1.56 ± 2.20
Drinking dependency (non-drinking) 4.08 ± 1.06** 4.04 ± 1.15* 3.95 ± 1.09*
prop_sun 5.07 ± 2.42   −4.59 ± 2.55
Intercept 34.44 ± 2.72** 36.07 ± 4.04** 35.05 ± 2.88**
Observations 30 30 30
AICc 159.7 161.7 161.8
  1. Note: *p < 0.05; **p < 0.01