Skip to main content

Advertisement

Table 1 Factors associated with body condition (mass after accounting for size) for (a) red-winged fairy-wrens and (b) white-browed scrubwrens captured during the autumn and winter months (April–September) between 1977 and 2014

From: Associations between changing climate and body condition over decades in two southern hemisphere passerine birds

Model Intercept AnnNHotDays Julian day Age NColdWetDays Rain30D Body size Time of day TminDB4 Sex (male) df AICc Delta Weight
(a) Red-winged fairy-wren
 1 9.274 ± 0.031 NA NA −0.038 ± 0.017 − 0.046 ± 0.015 −0.057 ± 0.015 0.123 ± 0.021 0.117 ± 0.014 0.072 ± 0.015 0.451 ± 0.044 11 1480.362 0.000 0.213
 2 9.275 0.021 NA −0.035 − 0.046 − 0.060 0.124 0.118 0.071 + 12 1480.465 0.102 0.202
 3 9.278 0.022 0.023 −0.036 − 0.044 − 0.068 0.126 0.118 0.078 + 13 1480.786 0.424 0.172
 4 9.277 NA 0.022 −0.038 −0.044 − 0.065 0.125 0.117 0.079 + 12 1480.838 0.476 0.168
(b) White-browed scrubwren
 1 10.854 ± 0.043 NA 0.050 ± 0.022 − 0.039 ± 0.020 NA − 0.075 ± 0.021 0.172 ± 0.028 0.135 ± 0.017 0.042 ± 0.019 0.676 ± 0.059 11 1521.597 0.000 0.230
 2 10.847 NA 0.048 NA NA −0.077 0.152 0.134 0.041 + 10 1523.334 1.738 0.097
  1. Shown are standardized coefficients and their standard errors (s.e.) for variables included in the top models with ∆AICc less than 2, following model selection based on AICc. Climate variables identified as important in the top model have 95% CIs of estimated coefficients that do not overlap zero and are shown in bold. Models were ranked by ∆AICc values. n.a. represents variables that were not included in the model