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Table 3 Changes in seasonal (autumn and winter, spring and summer) and annual body condition over time for (a, b, c) red-winged fairy-wrens and (d, e, f) white-browed scrubwrens captured between 1977 and 2016

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

Model Intercept Julian day Age Year Sex (male) Year x Sex df logLik AICc delta weight
Red-winged fairy-wren
 (a) Winter
  1 −0.524 ± 0.030 −0.041 ± 0.016 −0.059 ± 0.017 NA 0.448 ± 0.040 NA 7 − 790.107 1594.320 0.000 0.399
  2 −0.527 −0.038 − 0.065 0.053 + + 9 − 788.455 1595.083 0.763 0.273
  3 −0.526 − 0.038 − 0.064 0.015 + NA 8 − 789.771 1595.679 1.359 0.202
 (b) Summer
  1 −0.130 ± 0.027 − 0.092 ± 0.017 NA 0.111 ± 0.027 0.472 ± 0.037 0.068 ± 0.037 8 − 1106.498 2229.114 0.000 0.480
  2 − 0.133 − 0.090 NA 0.146 + NA 7 − 1108.158 2230.408 1.294 0.251
 (c) Annual
  1 −0.234 ± 0.021 0.032 ± 0.011 −0.027 ± 0.012 0.186 ± 0.014 0.431 ± 0.028 NA 8 − 2533.392 5082.835 0.000 0.524
  2 −0.233 0.032 −0.027 0.176 + + 9 −2533.170 5084.405 1.570 0.239
White-browed scrubwren
 (d) Winter
  1 −0.275 ± 0.039 NA −0.095 ± 0.020 −0.008 ± 0.044 0.448 ± 0.050 0.079 ± 0.044 8 − 803.530 1623.214 0.000 0.403
  2 −0.280 NA −0.095 0.042 + NA 7 − 805.171 1624.462 1.248 0.216
  3 −0.275 0.011 −0.096 − 0.005 + + 9 −803.361 1624.915 1.700 0.172
 (e) Summer
  1 −0.218 ± 0.052 NA −0.092 ± 0.029 −0.056 ± 0.032 0.405 ± 0.067 NA 7 − 611.363 1236.910 0.000 0.283
  2 −0.218 −0.035 − 0.096 −0.064 + NA 8 − 610.447 1237.131 0.221 0.253
  3 −0.231 NA −0.098 NA + NA 6 − 612.942 1238.022 1.112 0.162
 (f) Annual
  1 −0.233 ± 0.035 NA −0.097 ± 0.016 NA 0.423 ± 0.045 NA 6 − 1418.594 2849.242 0.000 0.328
  2 −0.233 −0.019 − 0.096 NA + NA 7 − 1417.702 2849.476 0.234 0.292
  3 −0.232 NA −0.096 − 0.004 + NA 7 −1418.573 2851.218 1.976 0.122
  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. All variables were standardized and terms identified as important in the best model have 95% CIs of estimated coefficients that do not overlap zero and important year terms are shown in bold. Models were ranked by ∆AICc values. NA represents variables that were not included in the model